HacDC Wiki - User contributions [en]

Regular Member Meeting 2010 08 10

2010-08-11T00:46:19Z

Wokka:

'''Note:''' This page serves as the 2010-08-10 Member Meeting's agenda (before the meeting) and minutes (after the meeting).

== Time and Location ==
August 10, 2010
Meeting called to order at 7:36 by Daniel

Members Present: Todd, Daniel, Tim, Ketan, Tim Collins, Jamie, Arc, Andy, William, Katie

Others Present: adam bradshaw, pete edworthy

Quorum Met.

== Approval of Previous Meeting's Minutes ==

'''Note:''' Dan Barlow has to update last meetings minutes to fix some things that are missing.

[[Regular Member Meeting 2010 07 13]]

== Director Reports ==
=== President's Report ===
We have a new server now.

=== Treasurer's Report ===

<pre>
HacDC Transaction Detail by Account July 2010

Date Type Num Name Memo/Description Split Amount Balance

BBT Checking

07/06/2010 Check 1092 American Express POS $7.95 Office Expenses -7.95 -7.95
07/06/2010 General Journal 15 -SPLIT- -100.38 -108.33
07/07/2010 Check 1088 Steve Nejelsk keys Office Expenses -150.00 -258.33
07/08/2010 Sales Receipt 1051 Membership Dues 50.00 -208.33
07/08/2010 Sales Receipt 1048 Non Profit Income 100.00 -108.33
07/08/2010 Sales Receipt 1049 Non Profit Income 100.00 -8.33
07/08/2010 Sales Receipt 1050 Membership Dues 50.00 41.67
07/26/2010 General Journal 16 insurance update for months -SPLIT- -420.31 -378.64
07/26/2010 General Journal 17 intuit -10.55 -389.19
07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church rent and inet Rent or Lease -2,020.00 -
Total for BBT Checking $ -2,409.19

Paypal

Total for Paypal $1,884.54

Membership Dues

Total for Membership Dues $1,740.50

Non Profit Income

Total for Non Profit Income $443.73

Insurance

Total for Insurance $420.31

Office Expenses

07/06/2010 General Journal 15 -SPLIT- 100.38 100.38
07/06/2010 Check 1092 American Express POS BBT Checking 7.95 108.33
07/07/2010 Check 1088 Steve Nejelsk BBT Checking 150.00 258.33
07/26/2010 General Journal 17 -SPLIT- 10.55 268.88

Total for Office Expenses $268.88

Rent or Lease

07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church BBT Checking 2,020.00 2,020.00

Total for Rent or Lease $2,020.00

Interest Earned

07/01/2010 General Journal 13 -SPLIT- 0.31 0.31

Total for Interest Earned $0.31

HacDC Balance Sheet As of July 31, 2010

Total
ASSETS
Current Assets
Bank Accounts
BBT Checking 5,743.00
Total Bank Accounts $5,743.00
Other Current Assets
Paypal 1,836.34
Undeposited Funds 0.00
Total Other Current Assets $1,836.34
Total Current Assets $7,579.34
Other Assets
Rent Security Deposits 850.00
Total Other Assets $850.00
TOTAL ASSETS $8,429.34

Opening Balance Equity 9,023.84
Retained Earnings 0.00
Net Income -594.50
Total Equity $8,429.34
TOTAL LIABILITIES AND EQUITY $8,429.34
</pre>

=== Vice President's Report ===
Something shady with the POS? VP lost his wallet.

=== Secretary's Report ===

=== Director-at-Large Reports ===

William: Is really happy to be back from India. Had a lot of fun painting HacDC.

Katie: Will be emailing all on the guest lists and asking them to join. Movie night sometime soon. Will require laptop to drive video. Contact her for details.

== Member Reports ==

=== Andy ===
*Booze Class (was too busy talking to type).

=== Redbeard ===
*Did an advanced SSH class. Was well received.

=== Elliot ===
*Ash's Electronics class is ongoing. It's been going well. We have done etching and are moving on to actually making simple circuits. Amps are immanent.

=== Arc ===

*New project server set up in the hall. Talk to Arc about it if you want access.
*Planning a Tues intro to programming class in Python to replace open slot for Disassembly Tues. in the next few weeks.
*Would like to organize 1 night/week work party (Friday?).

=== Todd ===
*NARG is planning an ambient light project to have lights in the space that would be controllable through an open API (XMPP controlled). Could potentially evolve into a flexible network for controlling microcontroller projects in the space. These could then be left in the space and would instantly be networked.

=== Katie ===
**The Space Blimp is MIA. Got good measurements. Disappears @ 60,000 feet.
**Perhaps kidnapped by aliens. We are hoping that the aliens call us if they find it. It is a mystery.

=== Daniel ===
*New server. If anyone had a hacdc email address and wants to restore it, let Dan know.
**Call for sysadmins present.

== Old Business ==

=== Parts Store ===

Budget has been approved, but there isn't consensus yet.

=== Nonprofit Paperwork Filing ===

Still in limbo. Redbeard following up every few days. Remains unassigned; will be fast-tracked once it's assigned.

== New Business ==

=== marketing meeting - August 24 ===

* House warming party
**Submit any proposals to blabber. Pumping Station did a "geek prom", which seems like a good idea, given that we have the space to do it for free.
* Membership packet
*Todd: Action needs to be taken regarding new members and funds. It doesn't seem we've done quite enough to get energy into the space. Meeting proposed in two weeks for marketing.
*Daniel: Proposes Town hall between membership meetings that is more town-hall action-oriented. Like a work sprint for programmatic things.

=== setup new voip service ===

we can get voip service for $1/mo (plus $.01/min incoming calls) from voip.ms (same as we're using now, Jason's account) and transfer the Google Voice number (202-556-HACK) to it. This will make it easier to fix when the phone goes out.

*We had a VOIP outage, which, it turns out is very dependent on Jason to call if anything goes wrong. It would be better for us to have it and administer it ourself.

*Daniel moves to approve $50/yr budget. William Seconds. Motion passes.

=== Clear internet "booster" ===

The internet access at the church is a T1 (1.544 sync) plus DSL (1.544 async) being shared now with a computer lab downstairs and 14 other offices, at times there's not enough bandwidth to run just our phone much less highspeed downloads (.isos, git/hg syncing, etc). A 700meg .iso recently took 9 hours to download. Availability for voip can (and will) be improved with QoS (quality of service) on the router, but this will not increase available bandwidth.

Clear 6m/1m internet access via wireless across the street from us. We can join it with our vlan as an uplink (in addition to T1) without sharing with the whole building, and costs only $40/mo (and $80 wimax modem).

'''No vote required at this time'''

=== Modern Device JeeNode kit order ===

There is currently interest in the JeeNode, an AVR-based Arduino clone with a built-in multi-node radio.
http://www.moderndevice.com/products/jeenode-kit
Individual HacDC members want to buy them, there is talk of a workshop, and NARG group members are thinking of using them in their ambient device network project. They are $22.50 each but ModernDevice.com has a 16% discount for quantities of 10 or more ($18.90 each). Since I am doing a similar order of Adafruit.com kits I offered to coordinate a ModernDevice kit order as well. I would place with order with HacDC funds and make the kits available for a suggested donation with a bit of "profit" built in as I'm doing with Adafruit. This "profit" would initially be folded back into stocking the kits but will eventually be returned to HacDC.

Arc Riley assures me that there is a lot of demand for the kits (>=14 people currently) and suggests ordering a batch of 20. Since we would also want to order some JeeLink Modules at $36.50 and probably some USB<->Serial converters at $14 the dollar values will add up quickly. Here are some possible order levels:

Item, Qty, Price Ea., Total 
JeeNode v4 kit 20 $18.90 $378.00 
USB BUB Board 4 $14.00 $56.00 
JeeLink Module 4 $36.50 $146.00 
ModerDevice total: $580.00 
 
JeeNode v4 kit 15 $18.90 $283.50 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $435.00 
 
JeeNode v4 kit 10 $18.90 $189.00 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $340.50 

Please discuss and approve whatever size of purchase everyone is comfortable with. I am happy to place future orders once these sell out, so the smaller orders will cost only shipping (~$7 for ground from RI) and time delay.

I will try to pursue an additional "hackerspace discount" with Modern Device, and (if people think it is okay) would even talk about having them sponsor some of the NARG ambient project with hardware in exchange for acknowledgement and links in the project writeups and publicity.

--Tim Slagle

'''No vote required, guidance can be dealt with on-list'''

== New Members ==

=== Pete Edworthy ===

Software/marketing/networking nerd in small companies. Electronics for sanity.
Nominated by: Timball
Seconded by: Multiple
'''Passed'''

=== Ben the Pirate (arr) ===

Not quite as cool. Also does software work OS *nix. Esoteric languages.
Nominated by: Redbeard
Seconded by: Arc
'''Welcome'''

=== Chris ===

Eagle scout hacker fellow. Language buff.
Nominated by: Arc
Seconded by: Elliot
'''One of us'''

=== Adam ===

Designs and builds exhibits. Background in welding and machining. Interested in 3D printing. Limited computer experience, interested in supplementing it here.
Nominated by: Elliot
Seconded by: Erik
'''Teach me to weld'''

== Adjournment ==

Adjourned at 8:44PM.

[[Category:Meeting_Agendas]]
[[Category:Meeting_Minutes]]

Regular Member Meeting 2010 08 10

2010-08-11T00:11:41Z

Wokka: /* Member Reports */

'''Note:''' This page serves as the 2010-08-10 Member Meeting's agenda (before the meeting) and minutes (after the meeting).

== Time and Location ==
August 10, 2010
Meeting called to order at 7:36 by Daniel

Members Present: Todd, Daniel, Tim, Ketan, Tim Collins, Jamie, Arc, Andy, William, Katie

Others Present: adam bradshaw, pete edworthy

Quorum Met.

== Approval of Previous Meeting's Minutes ==

'''Note:''' Dan Barlow has to update last meetings minutes to fix some things that are missing.

[[Regular Member Meeting 2010 07 13]]

== Director Reports ==
=== President's Report ===
We have a new server now.

=== Treasurer's Report ===

<pre>
HacDC Transaction Detail by Account July 2010

Date Type Num Name Memo/Description Split Amount Balance

BBT Checking

07/06/2010 Check 1092 American Express POS $7.95 Office Expenses -7.95 -7.95
07/06/2010 General Journal 15 -SPLIT- -100.38 -108.33
07/07/2010 Check 1088 Steve Nejelsk keys Office Expenses -150.00 -258.33
07/08/2010 Sales Receipt 1051 Membership Dues 50.00 -208.33
07/08/2010 Sales Receipt 1048 Non Profit Income 100.00 -108.33
07/08/2010 Sales Receipt 1049 Non Profit Income 100.00 -8.33
07/08/2010 Sales Receipt 1050 Membership Dues 50.00 41.67
07/26/2010 General Journal 16 insurance update for months -SPLIT- -420.31 -378.64
07/26/2010 General Journal 17 intuit -10.55 -389.19
07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church rent and inet Rent or Lease -2,020.00 -
Total for BBT Checking $ -2,409.19

Paypal

Total for Paypal $1,884.54

Membership Dues

Total for Membership Dues $1,740.50

Non Profit Income

Total for Non Profit Income $443.73

Insurance

Total for Insurance $420.31

Office Expenses

07/06/2010 General Journal 15 -SPLIT- 100.38 100.38
07/06/2010 Check 1092 American Express POS BBT Checking 7.95 108.33
07/07/2010 Check 1088 Steve Nejelsk BBT Checking 150.00 258.33
07/26/2010 General Journal 17 -SPLIT- 10.55 268.88

Total for Office Expenses $268.88

Rent or Lease

07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church BBT Checking 2,020.00 2,020.00

Total for Rent or Lease $2,020.00

Interest Earned

07/01/2010 General Journal 13 -SPLIT- 0.31 0.31

Total for Interest Earned $0.31

HacDC Balance Sheet As of July 31, 2010

Total
ASSETS
Current Assets
Bank Accounts
BBT Checking 5,743.00
Total Bank Accounts $5,743.00
Other Current Assets
Paypal 1,836.34
Undeposited Funds 0.00
Total Other Current Assets $1,836.34
Total Current Assets $7,579.34
Other Assets
Rent Security Deposits 850.00
Total Other Assets $850.00
TOTAL ASSETS $8,429.34

Opening Balance Equity 9,023.84
Retained Earnings 0.00
Net Income -594.50
Total Equity $8,429.34
TOTAL LIABILITIES AND EQUITY $8,429.34
</pre>

=== Vice President's Report ===
Something shady with the POS? VP lost his wallet.

=== Secretary's Report ===

=== Director-at-Large Reports ===
William: Is really happy to be back from India. Had a lot of fun painting HacDC.

Katie: Will be emailing all on the guest lists and asking them to join. Movie night sometime soon. Will require laptop to drive video. Contact her for details.

== Member Reports ==
* Andy
**Booze Class (was too busy talking to type).
* Redbeard
**Did an advanced SSH class. Was well received.
*Elliot
**Ash's Electronics class is ongoing. It's been going well. We have done etching and are moving on to actually making simple circuits. Amps are immanent.
*Arc
**New project server set up in the hall. Talk to Arc about it if you want access.
**Planning a Tues intro to programming class in Python to replace open slot for Disassembly Tues. in the next few weeks.
**Would like to organize 1 night/week work party (Friday?).
* Todd
**NARG is planning an ambient light project to have lights in the space that would be controllable through an open API (XMPP controlled). Could potentially evolve into a flexible network for controlling microcontroller projects in the space. These could then be left in the space and would instantly be networked.
* Katie
**The Space Blimp is MIA. Got good measurements. Disappears @ 60,000 feet.
**Perhaps kidnapped by aliens. We are hoping that the aliens call us if they find it. It is a mystery.
* Daniel
**New server. If anyone had a hacdc email address and wants to restore it, let Dan know.
**Call for sysadmins present.

== Old Business ==

== New Business ==

=== marketing meeting - August 24 ===

=== setup new voip service ===

we can get voip service for $1/mo (plus $.01/min incoming calls) from voip.ms (same as we're using now, Jason's account) and transfer the Google Voice number (202-556-HACK) to it. This will make it easier to fix when the phone goes out.

=== Clear internet "booster" ===

The internet access at the church is a T1 (1.544 sync) plus DSL (1.544 async) being shared now with a computer lab downstairs and 14 other offices, at times there's not enough bandwidth to run just our phone much less highspeed downloads (.isos, git/hg syncing, etc). A 700meg .iso recently took 9 hours to download. Availability for voip can (and will) be improved with QoS (quality of service) on the router, but this will not increase available bandwidth.

Clear 6m/1m internet access via wireless across the street from us. We can join it with our vlan as an uplink (in addition to T1) without sharing with the whole building, and costs only $40/mo (and $80 wimax modem).

=== Modern Device JeeNode kit order ===

There is currently interest in the JeeNode, an AVR-based Arduino clone with a built-in multi-node radio.
http://www.moderndevice.com/products/jeenode-kit
Individual HacDC members want to buy them, there is talk of a workshop, and NARG group members are thinking of using them in their ambient device network project. They are $22.50 each but ModernDevice.com has a 16% discount for quantities of 10 or more ($18.90 each). Since I am doing a similar order of Adafruit.com kits I offered to coordinate a ModernDevice kit order as well. I would place with order with HacDC funds and make the kits available for a suggested donation with a bit of "profit" built in as I'm doing with Adafruit. This "profit" would initially be folded back into stocking the kits but will eventually be returned to HacDC.

Arc Riley assures me that there is a lot of demand for the kits (>=14 people currently) and suggests ordering a batch of 20. Since we would also want to order some JeeLink Modules at $36.50 and probably some USB<->Serial converters at $14 the dollar values will add up quickly. Here are some possible order levels:

Item, Qty, Price Ea., Total 
JeeNode v4 kit 20 $18.90 $378.00 
USB BUB Board 4 $14.00 $56.00 
JeeLink Module 4 $36.50 $146.00 
ModerDevice total: $580.00 
 
JeeNode v4 kit 15 $18.90 $283.50 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $435.00 
 
JeeNode v4 kit 10 $18.90 $189.00 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $340.50 

Please discuss and approve whatever size of purchase everyone is comfortable with. I am happy to place future orders once these sell out, so the smaller orders will cost only shipping (~$7 for ground from RI) and time delay.

I will try to pursue an additional "hackerspace discount" with Modern Device, and (if people think it is okay) would even talk about having them sponsor some of the NARG ambient project with hardware in exchange for acknowledgement and links in the project writeups and publicity.

--Tim Slagle

== New Members ==

== Adjournment ==

Adjourned at _______.

[[Category:Meeting_Agendas]]
[[Category:Meeting_Minutes]]

Regular Member Meeting 2010 08 10

2010-08-11T00:07:45Z

Wokka: /* Member Reports */

'''Note:''' This page serves as the 2010-08-10 Member Meeting's agenda (before the meeting) and minutes (after the meeting).

== Time and Location ==
August 10, 2010
Meeting called to order at 7:36 by Daniel

Members Present: Todd, Daniel, Tim, Ketan, Tim Collins, Jamie, Arc, Andy, William, Katie

Others Present: adam bradshaw, pete edworthy

Quorum Met.

== Approval of Previous Meeting's Minutes ==

'''Note:''' Dan Barlow has to update last meetings minutes to fix some things that are missing.

[[Regular Member Meeting 2010 07 13]]

== Director Reports ==
=== President's Report ===
We have a new server now.

=== Treasurer's Report ===

<pre>
HacDC Transaction Detail by Account July 2010

Date Type Num Name Memo/Description Split Amount Balance

BBT Checking

07/06/2010 Check 1092 American Express POS $7.95 Office Expenses -7.95 -7.95
07/06/2010 General Journal 15 -SPLIT- -100.38 -108.33
07/07/2010 Check 1088 Steve Nejelsk keys Office Expenses -150.00 -258.33
07/08/2010 Sales Receipt 1051 Membership Dues 50.00 -208.33
07/08/2010 Sales Receipt 1048 Non Profit Income 100.00 -108.33
07/08/2010 Sales Receipt 1049 Non Profit Income 100.00 -8.33
07/08/2010 Sales Receipt 1050 Membership Dues 50.00 41.67
07/26/2010 General Journal 16 insurance update for months -SPLIT- -420.31 -378.64
07/26/2010 General Journal 17 intuit -10.55 -389.19
07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church rent and inet Rent or Lease -2,020.00 -
Total for BBT Checking $ -2,409.19

Paypal

Total for Paypal $1,884.54

Membership Dues

Total for Membership Dues $1,740.50

Non Profit Income

Total for Non Profit Income $443.73

Insurance

Total for Insurance $420.31

Office Expenses

07/06/2010 General Journal 15 -SPLIT- 100.38 100.38
07/06/2010 Check 1092 American Express POS BBT Checking 7.95 108.33
07/07/2010 Check 1088 Steve Nejelsk BBT Checking 150.00 258.33
07/26/2010 General Journal 17 -SPLIT- 10.55 268.88

Total for Office Expenses $268.88

Rent or Lease

07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church BBT Checking 2,020.00 2,020.00

Total for Rent or Lease $2,020.00

Interest Earned

07/01/2010 General Journal 13 -SPLIT- 0.31 0.31

Total for Interest Earned $0.31

HacDC Balance Sheet As of July 31, 2010

Total
ASSETS
Current Assets
Bank Accounts
BBT Checking 5,743.00
Total Bank Accounts $5,743.00
Other Current Assets
Paypal 1,836.34
Undeposited Funds 0.00
Total Other Current Assets $1,836.34
Total Current Assets $7,579.34
Other Assets
Rent Security Deposits 850.00
Total Other Assets $850.00
TOTAL ASSETS $8,429.34

Opening Balance Equity 9,023.84
Retained Earnings 0.00
Net Income -594.50
Total Equity $8,429.34
TOTAL LIABILITIES AND EQUITY $8,429.34
</pre>

=== Vice President's Report ===
Something shady with the POS? VP lost his wallet.

=== Secretary's Report ===

=== Director-at-Large Reports ===
William: Is really happy to be back from India. Had a lot of fun painting HacDC.

Katie: Will be emailing all on the guest lists and asking them to join. Movie night sometime soon. Will require laptop to drive video. Contact her for details.

== Member Reports ==
=== Andy === Booze Class (was too busy talking to type).

=== Redbeard === Did an advanced SSH class. Was well received.

=== Elliot === Ash's Electronics class is ongoing. It's been going well. We have done etching and are moving on to actually making simple circuits. Amps are immanent.

=== Arc === New project server set up in the hall. Talk to Arc about it if you want access. Planning a Tues intro to programming class in Python to replace open slot for Disassembly Tues. in the next few weeks. Would like to organize 1 night/week work party (Friday?).

=== Todd === NARG is planning an ambient light project to have lights in the space that would be controllable through an open API (XMPP controlled). Could potentially evolve into a flexible network for controlling microcontroller projects in the space. These could then be left in the space and would instantly be networked.

=== Katie ===
The Space Blimp is MIA. Got good measurements. Disappears @ 60,000 feet. Perhaps kidnapped by aliens. We are hoping that the aliens call us if they find it. It is a mystery.

=== Daniel ===
New server. If anyone had a hacdc email address and wants to restore it, let Dan know. Call for sysadmins present. Concerns that the server wouldn't be as powerful as a dedicated server were unfounded.

== Old Business ==

== New Business ==

=== marketing meeting - August 24 ===

=== setup new voip service ===

we can get voip service for $1/mo (plus $.01/min incoming calls) from voip.ms (same as we're using now, Jason's account) and transfer the Google Voice number (202-556-HACK) to it. This will make it easier to fix when the phone goes out.

=== Clear internet "booster" ===

The internet access at the church is a T1 (1.544 sync) plus DSL (1.544 async) being shared now with a computer lab downstairs and 14 other offices, at times there's not enough bandwidth to run just our phone much less highspeed downloads (.isos, git/hg syncing, etc). A 700meg .iso recently took 9 hours to download. Availability for voip can (and will) be improved with QoS (quality of service) on the router, but this will not increase available bandwidth.

Clear 6m/1m internet access via wireless across the street from us. We can join it with our vlan as an uplink (in addition to T1) without sharing with the whole building, and costs only $40/mo (and $80 wimax modem).

=== Modern Device JeeNode kit order ===

There is currently interest in the JeeNode, an AVR-based Arduino clone with a built-in multi-node radio.
http://www.moderndevice.com/products/jeenode-kit
Individual HacDC members want to buy them, there is talk of a workshop, and NARG group members are thinking of using them in their ambient device network project. They are $22.50 each but ModernDevice.com has a 16% discount for quantities of 10 or more ($18.90 each). Since I am doing a similar order of Adafruit.com kits I offered to coordinate a ModernDevice kit order as well. I would place with order with HacDC funds and make the kits available for a suggested donation with a bit of "profit" built in as I'm doing with Adafruit. This "profit" would initially be folded back into stocking the kits but will eventually be returned to HacDC.

Arc Riley assures me that there is a lot of demand for the kits (>=14 people currently) and suggests ordering a batch of 20. Since we would also want to order some JeeLink Modules at $36.50 and probably some USB<->Serial converters at $14 the dollar values will add up quickly. Here are some possible order levels:

Item, Qty, Price Ea., Total 
JeeNode v4 kit 20 $18.90 $378.00 
USB BUB Board 4 $14.00 $56.00 
JeeLink Module 4 $36.50 $146.00 
ModerDevice total: $580.00 
 
JeeNode v4 kit 15 $18.90 $283.50 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $435.00 
 
JeeNode v4 kit 10 $18.90 $189.00 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $340.50 

Please discuss and approve whatever size of purchase everyone is comfortable with. I am happy to place future orders once these sell out, so the smaller orders will cost only shipping (~$7 for ground from RI) and time delay.

I will try to pursue an additional "hackerspace discount" with Modern Device, and (if people think it is okay) would even talk about having them sponsor some of the NARG ambient project with hardware in exchange for acknowledgement and links in the project writeups and publicity.

--Tim Slagle

== New Members ==

== Adjournment ==

Adjourned at _______.

[[Category:Meeting_Agendas]]
[[Category:Meeting_Minutes]]

Regular Member Meeting 2010 08 10

2010-08-11T00:00:53Z

Wokka:

'''Note:''' This page serves as the 2010-08-10 Member Meeting's agenda (before the meeting) and minutes (after the meeting).

== Time and Location ==
August 10, 2010
Meeting called to order at 7:36 by Daniel

Members Present: Todd, Daniel, Tim, Ketan, Tim Collins, Jamie, Arc, Andy, William, Katie

Others Present: adam bradshaw, pete edworthy

Quorum Met.

== Approval of Previous Meeting's Minutes ==

'''Note:''' Dan Barlow has to update last meetings minutes to fix some things that are missing.

[[Regular Member Meeting 2010 07 13]]

== Director Reports ==
=== President's Report ===
We have a new server now.

=== Treasurer's Report ===

<pre>
HacDC Transaction Detail by Account July 2010

Date Type Num Name Memo/Description Split Amount Balance

BBT Checking

07/06/2010 Check 1092 American Express POS $7.95 Office Expenses -7.95 -7.95
07/06/2010 General Journal 15 -SPLIT- -100.38 -108.33
07/07/2010 Check 1088 Steve Nejelsk keys Office Expenses -150.00 -258.33
07/08/2010 Sales Receipt 1051 Membership Dues 50.00 -208.33
07/08/2010 Sales Receipt 1048 Non Profit Income 100.00 -108.33
07/08/2010 Sales Receipt 1049 Non Profit Income 100.00 -8.33
07/08/2010 Sales Receipt 1050 Membership Dues 50.00 41.67
07/26/2010 General Journal 16 insurance update for months -SPLIT- -420.31 -378.64
07/26/2010 General Journal 17 intuit -10.55 -389.19
07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church rent and inet Rent or Lease -2,020.00 -
Total for BBT Checking $ -2,409.19

Paypal

Total for Paypal $1,884.54

Membership Dues

Total for Membership Dues $1,740.50

Non Profit Income

Total for Non Profit Income $443.73

Insurance

Total for Insurance $420.31

Office Expenses

07/06/2010 General Journal 15 -SPLIT- 100.38 100.38
07/06/2010 Check 1092 American Express POS BBT Checking 7.95 108.33
07/07/2010 Check 1088 Steve Nejelsk BBT Checking 150.00 258.33
07/26/2010 General Journal 17 -SPLIT- 10.55 268.88

Total for Office Expenses $268.88

Rent or Lease

07/26/2010 Check 1091 St. Stephen and the Incarnation Episcopal Church BBT Checking 2,020.00 2,020.00

Total for Rent or Lease $2,020.00

Interest Earned

07/01/2010 General Journal 13 -SPLIT- 0.31 0.31

Total for Interest Earned $0.31

HacDC Balance Sheet As of July 31, 2010

Total
ASSETS
Current Assets
Bank Accounts
BBT Checking 5,743.00
Total Bank Accounts $5,743.00
Other Current Assets
Paypal 1,836.34
Undeposited Funds 0.00
Total Other Current Assets $1,836.34
Total Current Assets $7,579.34
Other Assets
Rent Security Deposits 850.00
Total Other Assets $850.00
TOTAL ASSETS $8,429.34

Opening Balance Equity 9,023.84
Retained Earnings 0.00
Net Income -594.50
Total Equity $8,429.34
TOTAL LIABILITIES AND EQUITY $8,429.34
</pre>

=== Vice President's Report ===
Something shady with the POS? VP lost his wallet.

=== Secretary's Report ===

=== Director-at-Large Reports ===
William: Is really happy to be back from India. Had a lot of fun painting HacDC.

Katie: Will be emailing all on the guest lists and asking them to join. Movie night sometime soon. Will require laptop to drive video. Contact her for details.

== Member Reports ==
===Andy=== Booze Class (was too busy talking to type).

===Redbeard=== Did an advanced SSH class. Was well received.

===Elliot=== Ash's Electronics class is ongoing. It's been going well. We have done etching and are moving on to actually making simple circuits. Amps are immanent.

===Arc=== New project server set up in the hall. Talk to Arc about it if you want access. Planning a Tues intro to programming class in Python to replace open slot for Disassembly Tues. in the next few weeks. Would like to organize 1 night/week work party (Friday?).

===Todd=== NARG is planning an ambient light project to have lights in the space that would be controllable through an open API (XMPP controlled). Could potentially evolve into a flexible network for controlling microcontroller projects in the space. These could then be left in the space and would instantly be networked.

== Old Business ==

== New Business ==

* marketing meeting - August 24

* setup new voip service; we can get voip service for $1/mo (plus $.01/min incoming calls) from voip.ms (same as we're using now, Jason's account) and transfer the Google Voice number (202-556-HACK) to it. This will make it easier to fix when the phone goes out.

=== Modern Device JeeNode kit order ===

There is currently interest in the JeeNode, an AVR-based Arduino clone with a built-in multi-node radio.
http://www.moderndevice.com/products/jeenode-kit
Individual HacDC members want to buy them, there is talk of a workshop, and NARG group members are thinking of using them in their ambient device network project. They are $22.50 each but ModernDevice.com has a 16% discount for quantities of 10 or more ($18.90 each). Since I am doing a similar order of Adafruit.com kits I offered to coordinate a ModernDevice kit order as well. I would place with order with HacDC funds and make the kits available for a suggested donation with a bit of "profit" built in as I'm doing with Adafruit. This "profit" would initially be folded back into stocking the kits but will eventually be returned to HacDC.

Arc Riley assures me that there is a lot of demand for the kits (>=14 people currently) and suggests ordering a batch of 20. Since we would also want to order some JeeLink Modules at $36.50 and probably some USB<->Serial converters at $14 the dollar values will add up quickly. Here are some possible order levels:

Item, Qty, Price Ea., Total 
JeeNode v4 kit 20 $18.90 $378.00 
USB BUB Board 4 $14.00 $56.00 
JeeLink Module 4 $36.50 $146.00 
ModerDevice total: $580.00 
 
JeeNode v4 kit 15 $18.90 $283.50 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $435.00 
 
JeeNode v4 kit 10 $18.90 $189.00 
USB BUB Board 3 $14.00 $42.00 
JeeLink Module 3 $36.50 $109.50 
ModerDevice total: $340.50 

Please discuss and approve whatever size of purchase everyone is comfortable with. I am happy to place future orders once these sell out, so the smaller orders will cost only shipping (~$7 for ground from RI) and time delay.

I will try to pursue an additional "hackerspace discount" with Modern Device, and (if people think it is okay) would even talk about having them sponsor some of the NARG ambient project with hardware in exchange for acknowledgement and links in the project writeups and publicity.

--Tim Slagle

== New Members ==

== Adjournment ==

Adjourned at _______.

[[Category:Meeting_Agendas]]
[[Category:Meeting_Minutes]]

User:Wokka

2010-07-29T01:39:50Z

Wokka: Created page with 'File:Aface.jpg == This guy. =='

[[File:Aface.jpg]]
 

== This guy. ==

File:Aface.jpg

2010-07-29T01:39:01Z

Wokka: Wokka

Wokka

ElectronicsClass

2010-07-29T01:36:54Z

Wokka:

= Electronics Class =
This class is targeted at the beginner who wants to learn electronics. It would make a fine prerequisite to the [[Microcontroller Course]] or the [[HAMClass]]
=== tease ===
These images form a slide show and a gestalt introduction to electronics. In which we map the techniques available to hackers and their surrounding requisite building blocks.
*[[http://wiki.hacdc.org/images/8/82/Mindmap.jpg]]mindmap
My hacking started with music and production. it wasn't exacly the tech; more for the ride.
*[[http://wiki.hacdc.org/images/5/5c/Wmuc_main.jpg]] WMUC main studio
Complicated behaviour arises from iteration of simple models. Learning how to operate something like this is simpler and more subtle than it looks.
*[[http://wiki.hacdc.org/images/thumb/9/99/Wheatstone.jpg/800px-Wheatstone.jpg]] wheatstone broadcast console
Easier to see is block diagram form; a gestural view of a complex system. WMUC recording suites and broadcast control rooms. Computing.
*[[http://wiki.hacdc.org/images/b/b9/Mixerschem.png]] signal diagram
Why study DC/baseband/RF electronics; anachronism?
*[[http://wiki.hacdc.org/images/a/a3/Roofchill.png]] chill on the roof.
Space shuttle shots; APRS , RACES, field day. Social technical effects require proficiency.
*[[http://wiki.hacdc.org/images/e/ea/W3eaxtower.png]] W3EAX tower
Small systems scale into big ones. 40,000 people at Operation ceasefire (united for peace& justice) '05 at the national mall. Standing between SS, Park police and thousands of protesters.
*[[http://wiki.hacdc.org/images/d/d7/Ceasefirestage.jpeg]] ceasefire stage
*[[http://wiki.hacdc.org/images/3/30/Ceasefirecrowd.jpeg]] ceasefire 40k
No always smooth sailing.
*[[http://images.spaceref.com/news/2003/09.06.03.noaa-n.med.jpg]] mars needs bolts
Building whimsey.
*[[http://wiki.hacdc.org/images/b/bf/Dancepanel.jpeg]] lightup dance floor
Computer control over physical objects. microcontrollers + christmas tree lights.
*[[http://wiki.hacdc.org/images/f/f3/Dancectll.jpeg]] dance floor controller
Not always smooth. Electrical compatibility != political compatability
*[[http://wiki.hacdc.org/images/2/2c/Hhr.png]] hhr - phear the transaxle

More small systems iterated.
*[[http://wiki.hacdc.org/images/c/cc/Igniterschem.jpeg]] fireworks diagram
DIY Ignition source in Berlin. in a pinch you don't need a parts catalog.
*[[http://wiki.hacdc.org/images/9/91/Igniterface.jpeg]] igniter controller
Apologies to Dakami
*[[http://wiki.hacdc.org/images/d/d1/Fireworkscrates.jpeg]] fireworks crates
Simple systems, RC control, Robots and igniters.
*[[http://2.bp.blogspot.com/_KqHQ-3WDqyk/SFqH25qqRwI/AAAAAAAAAS0/sJ2S8ppcBWQ/s1600-h/1055943372_295788412e.jpg]] wm greek fire
Recently robotics have become accessible to experimenters. Bluto cuts, welds and hugs.
*[[http://wiki.hacdc.org/images/4/47/Cadfab.jpg]] Welding robots!

==Required Materials==
(see also: our [[Suppliers|Suppliers page]]) 
----
[[File:Digital_Multimeter.jpg|200px]][[File:Analog_Multimeter.jpg|200px]]
* Multimeter $4
**[http://www.harborfreight.com/7-function-digital-multimeter-92020.html Source: Harbor Freight]
----
[[File:Soldering_iron.jpg|200px]]
* Soldering Iron (25-30w) $10
**[http://www.harborfreight.com/30-watt-120-volt-soldering-iron-47887.html Source: Harbor Freight]
----
[[File:Solder.jpg|200px]]
* Solder ( 22ga )
**[http://www.harborfreight.com/lead-free-rosin-core-solder-95861.html Source: Harbor Freight]
**[http://www.radioshack.com/product/index.jsp?productId=2062712 Source: Radio Shack]
**Or ANYWHERE, really.
----
[[File:Breadboard.jpg|200px]]
* Bread Board ( or [[AshClassBoard]] ) $10
**[http://mouser.com/ProductDetail/BusBoard-Prototype-Systems/BB400/?qs=sGAEpiMZZMskUkxWo/qA8g6E2/%252b0L/2p Source: Mouser]
**[http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=438-1045-ND Source: Digi-Key]
----
* wire 24ga
----
* 30ga solid core wire
----
* Resistors 10kohm
----
* variable resistor 10kohm linear $1
----
* switch [[http://www.mouser.com/search/ProductDetail.aspx?qs=JTMHOUw%252b%2fhkyoxmWRloCXw%3d%3d]]
----
* leds (various)
----
* capacitor 470uf (ish) [[http://www.mouser.com/Search/ProductDetail.aspx?qs=Dj1PTMaP5uJBsuYHd%252b9oGQ%3d%3d]]
----
* pn2222 transistor $.03
----
* 1/8 male phono jack

Read The Fine Data Sheet: They hide secrets in the documentation.

==Metering==
There are many like it but this one is mine.
* Naming of parts
* Should be a VOM - Volt Ohm Meter
** metering modes
*** restistance - Ohms of resistance
*** voltage - Volts
*** Current - Amps/Milliamps - check the leads
*** diode check - see [Diodes]
** leads - plugged into the right ports?
* Continuity testing
** set the meter to the lowest resistance mode (200ohms or auto resistance)
** or perhaps Diode check; or even beeping
** reads "off scale" when the leads are unconnected, this is an open circuit
** firmly touch leads together -loopback test
** reads near 0 if the leads are crossed
* Voltage testing
** set meter to 20Vdc or VautoDC
** touch leads to metered points
** the reading on the meter is the difference in voltages between the leads
** Try AC mains!! - safety second.

====SwitchLab====
* use the continuity meter to diagram the electrical layout of the switch.
* solder switch to the board.
* test under power with meter voltage setting

==Relays/Switches==
Codespeak
* SPDT - single pole dual throw
* DPST - dual pole single throw
* 4P10T - ???

- Map this mystery switchLab

==Wire==
The basic wire is a pipe through which electrons can flow from the lowest voltage side to the highest ([[wikipedia:Electric current#Conventional current|conventional current]]) up to the physical limits of the wire.

* Condunctor vs. Insulators
* Current limit via wire gauge [http://www.powerstream.com/Wire_Size.htm]
* Voltage limit via insulation.
* Magnetic and Electric fields surround an energized wire (what?!)
* And wire will respond with current when moved through magnetic flux
** bass pickups
** Lentz law
** Siemens, mho, ohms
* strip wire
* and don't nick the conductor

==Electromagnetics==
* Einstein's "spukhafte Fernwirkung"
* Quantum Electrodynamics
** Electron and photons interact - somehow
* Gauss, Maxwell and
* Permanent magnets useful - locked domains
** Ferro materials, Ni, Co, Sr, Rb, Nb, Nd, Cr and Fe.
** Except when they aren't - curie temperature.
* Hall effect - sensing - spaceship drives
* Motors, linear, rotary, vibrational, direct ( magnetohydrodynamic)
* Radios
** EM probe demo
** EM spectrum
*** DC, ELF, SLF (submarines, blue whales), AF, LF,HF, (Short wave), VHF, UHF, Microwave, weird stuff, gamma rays (the incredible hulk, gian ants).

==Soldering==
Hold the cold end.
Soldering ( for our purposes ) is the process of joining electrical contacts with a low melting point metal to make a mechanically and electrically strong connection.
* Restrain long hair/clothing/jewelry.
* Clean both parts of waxes, oils or debris.
** Ethanol/Methanol/SLX
** Flux/Rosin/Dry
* Mechanically fit connections together
* Clean and wet the iron
** Tip should be immaculate and bright
* Heat both parts until hot
** Cheat, use another heating element
*** quartz floodlight, sterno, propane or mean stare.
** but not too hot - see blue smoke lab
* Apply just enough solder to wet the contact surfaces
* Wait for the connection to shine smoothly
* remove the iron an test the connection
** yes it's hot stupid.
** the meter should find near 0 ohms of resistance between the two parts even when mechanically stressed.
** the meter should read "off scale" to everything that should be isolated
*Splice practice
** Western Union Splice
** Pigtail Splice

==Speakermaking lab==
materials:
* junk wire, lots of it
* magnet ( stronger is better )

Test stuff:
* multimeter
* signal generator, (or music source)
* power amp

Construction:
* Make coil of wire 24ga 1" dia, 50-400 turns.
** use a form, marker, tp tube, pvc pipe
** Measure impedance > 1.5 ohm
* Stick coil of wire to diaphram
* Make stator/armature
** stick magnet to something - not too ferrous
* stick diaphram near armature (correct axis??)
* connect to amplifier; apply Rock!

Exercises for suckers:
* Use the lentz law to calculate the force generated by thingy.
* Why 8ohm speakers in the house?

==Resistor==
Not like the NYC variety
Resistors impede the flow of electrons across them; usually to protect components from excessive current.

[[Image:resistoriv.png]]

* [[wikipedia:Ohm's_law|Ohm's law]]
* Diagonal IV curve.
* symmetric

=====ResistorLab=====
* solder resistors, meter and record;
* compare to ohms law math

=====BlueSmokeLab=====
Get this out of the way early (and often)
* turn off the switch
* Solder the 30ga wire ends on to the lab 0 area
* stow fingers away from wire
* turn on switch

==Power==
*Measured in watts (usally)
* .01w laser pointer
* .25w cell phone
* 1w
* 15w car stereo
* 25w soldering iron
* 100w light bulb
* 1500w hair dryer
* 200 horsepower (750w/hp)
* 3 tons of Air conditioner capacity (3.5kw/ton)
*The notion of instant work
*Energy or work is expressed in joules (watt*second). Or perhaps (Kw*H)
*Power(watts) = Current (Amps) * Volts

Electromechanical relay is a switch that's controlled electrically.
===pros===
* Easy to design for
* debugging (listen for satisfying click)
* excelent isolation
* high power control/$
===cons===
* high drive current (mostly)
* noisy (mostly)
* slow
* moving parts (eeew)
[http://ecommas.tycoelectronics.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7F1308242_T77%7F1104%7Fpdf%7FEnglish%7FENG_DS_1308242_T77_1104.pdf a typical relay]
- map this mystery relay lab

====Diode====
[[Image:diodeiv.png]]
=====ScaryDataSheetLab=====
* a favorite led [http://www.vishay.com/docs/83012/83012.pdf]
* LED ( Light emitting diode ) are diodes with a clear case.
* electrons only permitted to flow in one direction: cathode to anode
** there are exceptions [diode breakdown voltage]
* discontinuous IV curve
* diode logic
* the cathode is marked
* the diode check function of the meter can reveal the correct polarity of a mystery diode with a suspect cathode mark.

==Light Emitting Diode==
* the short lead is the cathode
* LED's need current limiting (see [[ElectronicsClass#BlueSmokeLab|BlueSmokeLab]])
=====LEDLab=====
* solder in 1kOhm resistor for the led , although you may use another if you can justify the value
* Solder in the LED, with the short lead towards the ground.

==Motor==
==Printed Circuits==
==Capacitor==
470μf electrolytic cap
[[Image:capt.png]]

[http://en.wikipedia.org/wiki/Capacitor wikipedia capacitor]
<math>\operator {work} (V) =
\frac {1}{2}
2)Cv^2 </math> Hmm.. no teX support here.

====Applications====
*Filters
**Decoupling - Ripple rejection
**Blocking - DC Bias rejection
**Use in networks - equalization networks
*Storage
**Pump and dump - Photoflash.
**Tank application - DC - DC converters
*Esoteric
**Sensors - Strain gauge
**Microphones - Old school
**nonlinear math - Calculating logs/exponents.

==Transistor==
PN2222 N channel transistor
===little amplifierlab===

*class A amp
*DC blocking caps
*bias resistors
*fixed gain
*inverted waveform
===construction intro===
*breadboard intro
*soldering intro
*led circuit

==Digital Logic==
* AND C = A & B
* OR C = A | B
* NOT C = !A
* NOR C = !(A|B)
* NAND C = !(A&B)
* MUX C = select A(n) based on B(n)

==IC==
LM386 Audio Amplifier [http://www.national.com/mpf/LM/LM386.html]

[[Category:Classes]]

= Links and class notes =
*7-28
**[http://www.allaboutcircuits.com/vol_3/chpt_2/8.html How bipolar junction transistors actually work]

ElectronicsClass

2010-06-24T03:57:44Z

Wokka: /* Required Materials */

= Electronics Class =
This class is targeted at the beginner who wants to learn electronics. It would make a fine prerequisite to the [[Microcontroller Course]] or the [[HAMClass]]
=== tease ===
These images form a slide show and a gestalt introduction to electronics. In which we map the techniques available to hackers and their surrounding requisite building blocks.
*[[http://wiki.hacdc.org/images/8/82/Mindmap.jpg]]mindmap
My hacking started with music and production. it wasn't exacly the tech; more for the the ride.
*[[http://wiki.hacdc.org/images/5/5c/Wmuc_main.jpg]] WMUC main studio
Complicated behaviour arises from iteration of simple models. Learning how to operate something like this is simpler and more subtle than it looks.
*[[http://wiki.hacdc.org/images/thumb/9/99/Wheatstone.jpg/800px-Wheatstone.jpg]] wheatstone broadcast console
Easier to see is block diagram form; a gestural view of a complex system. WMUC recording suites and broadcast control rooms. Computing.
*[[http://wiki.hacdc.org/images/b/b9/Mixerschem.png]] signal diagram
Why study DC/baseband/RF electronics; anachronism?
*[[http://wiki.hacdc.org/images/a/a3/Roofchill.png]] chill on the roof.
Space shuttle shots; APRS , RACES, field day. Social technical effects require proficiency.
*[[http://wiki.hacdc.org/images/e/ea/W3eaxtower.png]] W3EAX tower
Small systems scale into big ones. 40,000 people at Operation ceasefire (united for peace& justice) '05 at the national mall. Standing between SS, Park police and thousands of protesters.
*[[http://wiki.hacdc.org/images/d/d7/Ceasefirestage.jpeg]] ceasefire stage
*[[http://wiki.hacdc.org/images/3/30/Ceasefirecrowd.jpeg]] ceasefire 40k
No always smooth sailing.
*[[http://images.spaceref.com/news/2003/09.06.03.noaa-n.med.jpg]] mars needs bolts
Building whimsey.
*[[http://wiki.hacdc.org/images/b/bf/Dancepanel.jpeg]] lightup dance floor
Computer control over physical objects. microcontrollers + christmas tree lights.
*[[http://wiki.hacdc.org/images/f/f3/Dancectll.jpeg]] dance floor controller
Not always smooth. Electrical compatibility != political compatability
*[[http://wiki.hacdc.org/images/2/2c/Hhr.png]] hhr - phear the transaxle

More small systems iterated.
*[[http://wiki.hacdc.org/images/c/cc/Igniterschem.jpeg]] fireworks diagram
DIY Ignition source in Berlin. in a pinch you don't need a parts catalog.
*[[http://wiki.hacdc.org/images/9/91/Igniterface.jpeg]] igniter controller
Apologies to Dakami
*[[http://wiki.hacdc.org/images/d/d1/Fireworkscrates.jpeg]] fireworks crates
Simple systems, RC control, Robots and igniters.
*[[http://2.bp.blogspot.com/_KqHQ-3WDqyk/SFqH25qqRwI/AAAAAAAAAS0/sJ2S8ppcBWQ/s1600-h/1055943372_295788412e.jpg]] wm greek fire
Recently robotics have become accessible to experimenters. Bluto cuts, welds and hugs.
*[[http://wiki.hacdc.org/images/4/47/Cadfab.jpg]] Welding robots!

==Required Materials==
(see also: our [[Suppliers|Suppliers page]]) 
----
[[File:Digital_Multimeter.jpg|200px]][[File:Analog_Multimeter.jpg|200px]]
* Multimeter $4
**[http://www.harborfreight.com/7-function-digital-multimeter-92020.html Source: Harbor Freight]
----
[[File:Soldering_iron.jpg|200px]]
* Soldering Iron (25-30w) $10
**[http://www.harborfreight.com/30-watt-120-volt-soldering-iron-47887.html Source: Harbor Freight]
----
[[File:Solder.jpg|200px]]
* Solder ( 22ga )
**[http://www.harborfreight.com/lead-free-rosin-core-solder-95861.html Source: Harbor Freight]
**[http://www.radioshack.com/product/index.jsp?productId=2062712 Source: Radio Shack]
**Or ANYWHERE, really.
----
[[File:Breadboard.jpg|200px]]
* Bread Board ( or [[AshClassBoard]] ) $10
**[http://mouser.com/ProductDetail/BusBoard-Prototype-Systems/BB400/?qs=sGAEpiMZZMskUkxWo/qA8g6E2/%252b0L/2p Source: Mouser]
**[http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=438-1045-ND Source: Digi-Key]
----
* wire 24ga
----
* 30ga solid core wire
----
* Resistors 10kohm
----
* variable resistor 10kohm linear $1
----
* switch [[http://www.mouser.com/search/ProductDetail.aspx?qs=JTMHOUw%252b%2fhkyoxmWRloCXw%3d%3d]]
----
* leds (various)
----
* capacitor 470uf (ish) [[http://www.mouser.com/Search/ProductDetail.aspx?qs=Dj1PTMaP5uJBsuYHd%252b9oGQ%3d%3d]]
----
* pn2222 transistor $.03
----
* 1/8 male phono jack

Read The Fine Data Sheet: They hide secrets in the documentation.

==Metering==
There are many like it but this one is mine.
* Naming of parts
** metering modes
*** restistance - Ohms of resistance
*** voltage - Volts
*** Current - Amps/Milliamps - check the leads
*** diode check - see [Diodes]
** leads - plugged into the right ports?
* Continuity testing
** set the meter to the lowest resistance mode (200ohms or auto resistance)
** reads "off scale" when the leads are unconnected, this is an open circuit
** firmly touch leads together
** reads near 0 if the leads are crossed
* Voltage testing
** set meter to 20Vdc or VautoDC
** touch leads to metered points
** the reading on the meter is the difference in voltages between the leads

==Soldering==
Hold the cold end.
Soldering ( for our purposes ) is the process of joining electrical contacts with a low melting point metal to make a mechanically and electrically strong connection.
* Restrain long hair/clothing/jewelry.
* Clean both parts of waxes, oils or debris.
* Mechanically fit connections together
* Clean and wet the iron
* Heat both parts until hot
* Apply just enough solder to wet the contact surfaces
* Wait for the connection to shine smoothly
* remove the iron an test the connection
** the meter should find near 0 ohms of resistance between the two parts even when mechanically stressed.
** the meter should read "off scale" to everything that should be isolated

====SwitchLab====
* use the continuity meter to diagram the electrical layout of the switch.
* solder switch to the board.
* test under power with meter voltage setting

==Wire==
The basic wire is a pipe through which electrons can flow from the lowest voltage side to the highest ([[wikipedia:Electric current#Conventional current|conventional current]]) up to the physical limits of the wire.

* Current limit via wire gauge [http://www.powerstream.com/Wire_Size.htm]
* Voltage limit via insulation.
* Magnetic and Electric fields surround an energized wire (what?!)
* And wire will respond with current when moved through magnetic flux

==Relays/Switches==
Codespeak
* SPDT - single pole dual throw
* DPST - dual pole single throw
* 4P10T - ???

- Map this mystery switchLab
Electromechanical relay is a switch that's controlled electrically.
===pros===
* Easy to design for
* debugging (listen for satisfying click)
* excelent isolation
* high power control/$
===cons===
* high drive current (mostly)
* noisy (mostly)
* slow
* moving parts (eeew)
[http://ecommas.tycoelectronics.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7F1308242_T77%7F1104%7Fpdf%7FEnglish%7FENG_DS_1308242_T77_1104.pdf a typical relay]
- map this mystery relay lab

=====BlueSmokeLab=====
Get this out of the way early (and often)
* turn off the switch
* Solder the 30ga wire ends on to the lab 0 area
* stow fingers away from wire
* turn on switch

==Power==
*Measured in watts (usally)
* .01w laser pointer
* .25w cell phone
* 1w
* 15w car stereo
* 25w soldering iron
* 100w light bulb
* 1500w hair dryer
* 200 horsepower (750w/hp)
* 3 tons of Air conditioner capacity (3.5kw/ton)
*The notion of instant work
*Energy or work is expressed in joules (watt*second). Or perhaps (Kw*H)
*Power(watts) = Current (Amps) * Volts

==Resistor==
Not like the NYC variety
Resistors impede the flow of electrons across them; usually to protect components from excessive current.

[[Image:resistoriv.png]]

* [[wikipedia:Ohm's_law|Ohm's law]]
* Diagonal IV curve.
* symmetric
=====ResistorLab=====
* solder resistors, meter and record;
* compare to ohms law math
====Diode====
[[Image:diodeiv.png]]
=====ScaryDataSheetLab=====
* a favorite led [http://www.vishay.com/docs/83012/83012.pdf]
* LED ( Light emitting diode ) are diodes with a clear case.
* electrons only permitted to flow in one direction: cathode to anode
** there are exceptions [diode breakdown voltage]
* discontinuous IV curve
* diode logic
* the cathode is marked
* the diode check function of the meter can reveal the correct polarity of a mystery diode with a suspect cathode mark.

==Light Emitting Diode==
* the short lead is the cathode
* LED's need current limiting (see [[ElectronicsClass#BlueSmokeLab|BlueSmokeLab]])
=====LEDLab=====
* solder in 1kOhm resistor for the led , although you may use another if you can justify the value
* Solder in the LED, with the short lead towards the ground.

==Motor==
==Printed Circuits==
==Capacitor==
470uf electrolytic cap
[[Image:capt.png]]
[http://en.wikipedia.org/wiki/Capacitor wikipedia capacitor]

==Transistor==
PN2222 N channel transistor
===little amplifierlab===
*class A amp
*DC blocking caps
*bias resistors
*fixed gain
*inverted waveform

==Digital Logic==
* AND C = A & B
* OR C = A | B
* NOT C = !A
* NOR C = !(A|B)
* NAND C = !(A&B)
* MUX C = select A(n) based on B(n)

==IC==
LM386 Audio Amplifier [http://www.national.com/mpf/LM/LM386.html]

[[Category:Classes]]

File:Breadboard.jpg

2010-06-24T03:51:42Z

Wokka: Breadboard. Taken from Digikey. Todo: replace with CC equiv.

Breadboard. Taken from Digikey. Todo: replace with CC equiv.

File:Solder.jpg

2010-06-24T03:43:45Z

Wokka: Solder. Taken from wikimedia commons

Solder. Taken from wikimedia commons

File:Soldering iron.jpg

2010-06-24T03:40:37Z

Wokka: Soldering Iron (taken from wikimedia commons)

Soldering Iron (taken from wikimedia commons)

File:Analog Multimeter.jpg

2010-06-24T03:23:21Z

Wokka: Analog Multimeter (taken from wikimedia commons)

Analog Multimeter (taken from wikimedia commons)

File:Digital Multimeter.jpg

2010-06-24T03:20:23Z

Wokka: Digital Multimeter (taken from wikimedia commons)

Digital Multimeter (taken from wikimedia commons)