Intro to Electronics - Revision history

Myersjustinc: /* Week 5: Digital logic */ Added links to slides

2012-11-15T02:13:11Z

Week 5: Digital logic: Added links to slides

← Older revision		Revision as of 02:13, 15 November 2012
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	'''Goal:''' Build a Larson scanner (Schematic (more or less) from [http://www.evilmadscientist.com/article.php/CylonOLantern EMSL])		'''Goal:''' Build a Larson scanner (Schematic (more or less) from [http://www.evilmadscientist.com/article.php/CylonOLantern EMSL])

			'''Slides:''' [[Media:Intro_to_Electronics-Week5-Slides.pdf]] (with notes here: [[Media:Intro_to_Electronics-Week5-Slides_and_Notes.pdf]]

	* Use [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4's 555 project]] for the clock signal		* Use [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4's 555 project]] for the clock signal

Myersjustinc: /* Week 4: Oscillators — and the venerable 555 */ Added link to slides

2012-11-08T02:45:52Z

Week 4: Oscillators — and the venerable 555: Added link to slides

← Older revision		Revision as of 02:45, 8 November 2012
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	'''Goal:''' Build a 555 circuit to blink an LED		'''Goal:''' Build a 555 circuit to blink an LED

			'''Slides:''' [[Media:Intro_to_Electronics-Week4-Slides.pdf]]

	Explanations:		Explanations:

Myersjustinc: /* Syllabus */ Added link to Week 3 slides

2012-10-25T02:06:52Z

Syllabus: Added link to Week 3 slides

← Older revision		Revision as of 02:06, 25 October 2012
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	'''Goal:''' Build a night light (Many thanks to [http://www.evilmadscientist.com/article.php/nightlight EMSL])		'''Goal:''' Build a night light (Many thanks to [http://www.evilmadscientist.com/article.php/nightlight EMSL])

			'''Slides:''' [[Media:Intro_to_Electronics-Week3-Slides.pdf]]

	Explanations:		Explanations:

Myersjustinc: /* Syllabus */ Added Week 2 slides

2012-10-18T03:48:42Z

Syllabus: Added Week 2 slides

← Older revision		Revision as of 03:48, 18 October 2012
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	'''Goal:''' Build a power supply		'''Goal:''' Build a power supply

			'''Slides:''' [[Media:Intro_to_Electronics-Week2-Slides.pdf]]

	Explanations:		Explanations:

Myersjustinc: /* Week 1: Getting familiar with components */ Fixed a line break

2012-10-04T01:25:04Z

Week 1: Getting familiar with components: Fixed a line break

← Older revision		Revision as of 01:25, 4 October 2012
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	'''Goal:''' Light an LED with AA batteries and an on-off switch		'''Goal:''' Light an LED with AA batteries and an on-off switch

	'''Slides:''' [[Media:Intro_to_Electronics-Week1-Slides.pdf]]		'''Slides:''' [[Media:Intro_to_Electronics-Week1-Slides.pdf]]

Myersjustinc: /* Week 1: Getting familiar with components */ Added link to slides used Oct. 3, 2012

2012-10-04T01:24:38Z

Week 1: Getting familiar with components: Added link to slides used Oct. 3, 2012

← Older revision		Revision as of 01:24, 4 October 2012
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	'''Goal:''' Light an LED with AA batteries and an on-off switch		'''Goal:''' Light an LED with AA batteries and an on-off switch
			'''Slides:''' [[Media:Intro_to_Electronics-Week1-Slides.pdf]]

	Explanations:		Explanations:

Myersjustinc: /* Week 6: Soldering */ Added link to EAGLE files

2012-04-05T16:09:24Z

Week 6: Soldering: Added link to EAGLE files

← Older revision		Revision as of 16:09, 5 April 2012
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	** '''Hands-on:''' Solder a component		** '''Hands-on:''' Solder a component
	* Assembly		* Assembly
	** '''Hands-on:''' Finish the board!		** '''Hands-on:''' Finish the board! ([[Media:Intro_to_Electronics-Week6-EAGLE.zip\|PCB design (EAGLE) here, still untested]])
	* Bonus: Do I need one of these? (Other ways to mount circuits)		* Bonus: Do I need one of these? (Other ways to mount circuits)
	** Prototyping board, layout tools, etching (chemical and mechanical)		** Prototyping board, layout tools, etching (chemical and mechanical)

Myersjustinc: /* Week 5: Digital logic */ Added tested schematic links

2012-04-05T03:41:52Z

Week 5: Digital logic: Added tested schematic links

← Older revision		Revision as of 03:41, 5 April 2012
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	* Use [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4's 555 project]] for the clock signal		* Use [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4's 555 project]] for the clock signal
	** Can change resistor values to EMSL values ~~at the end~~ to change speed		** Can change resistor values to EMSL-recommended values to change speed
	* ~~Probably leave~~ out the low-pass filter because of time and cost		* Leave out the low-pass filter because of time and cost

	Explanations:		Explanations:
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	*** Multiplexers		*** Multiplexers
	*** Counters		*** Counters
	** '''Hands-on:''' Manual logic switch		** '''Hands-on:''' Manual logic switch ([[Media:Intro_to_Electronics-Week5-0-switch.svg\|Schematic here (tested April 4, 2012)]])
	*** SPST on a line with a pull-up (or pull-down) resistor		*** SPST on a line with a pull-up (or pull-down) resistor
	**** How does such a resistor work? What does it do?		**** How does such a resistor work? What does it do?
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	** What is it?		** What is it?
	** How does it work?		** How does it work?
	** '''Hands-on:''' Hook one up to power		** '''Hands-on:''' Hook one up to power and the 555 circuit from [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4]]
	*** Use the ~~logic switch we just built to control the counter's clock signal~~		*** Watch what happens — connect each output pin to an LED to make it more obvious ([[Media:Intro_to_Electronics-Week5-1-counter.svg\|schematic here (tested April 4, 2012) with different (i.e., faster) resistor values as suggested by EMSL]])
	*** Watch what happens — maybe connect each output pin to an LED to make it more obvious?
	* 555 ~~(review)~~
	** What is it?
	** What did we do with one in [[Intro to Electronics#Week_4:_Oscillators_.E2.80.94_and_the_venerable_555\|Week 4]]?
	*** ~~Astable multivibrator!~~
	** '''Hands-on:''' Use it as the clock signal
	*** 555 output pin ~~connects~~ to ~~counter clock pin~~
	*** Use resistor values from [~~http~~:~~//www~~.~~evilmadscientist~~.~~com/article~~.~~php/CylonOLantern~~ EMSL ~~tutorial~~]
	* OR gate		* OR gate
	** Review logic gates (if we got to them at the end of [[Intro to Electronics#Week_3:_Optoelectronics\|Week 3]])		** Review logic gates (if we got to them at the end of [[Intro to Electronics#Week_3:_Optoelectronics\|Week 3]])
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	*** Plot out Larson scanner details/excitation table		*** Plot out Larson scanner details/excitation table
	** We need four of them		** We need four of them
	** '''Hands-on:''' Add them to the circuit		** '''Hands-on:''' Add them to the circuit ([[Media:Intro_to_Electronics-Week5-2-Larson.svg\|Schematic here (tested April 4, 2012)]])
	*** Watch the lights scan back and forth		*** Watch the lights scan back and forth

Myersjustinc: /* Week 4: Oscillators — and the venerable 555 */ Added tested schematic links

2012-04-05T03:11:47Z

Week 4: Oscillators — and the venerable 555: Added tested schematic links

← Older revision		Revision as of 03:11, 5 April 2012
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	***** What does that mean?		***** What does that mean?
	** What crazy things do people do with it? ([http://www.555contest.com/ All kinds of things.])		** What crazy things do people do with it? ([http://www.555contest.com/ All kinds of things.])
	** '''Hands-on:''' Wire one up		** '''Hands-on:''' Wire one up ([[Media:Intro_to_Electronics-Week4-0-555.svg\|Schematic here (tested April 4, 2012)]])
	*** Show output on an oscilloscope		*** Show output on an oscilloscope
	* LED (review)		* LED (review)
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	*** Use a different LED this time (maybe blue!)		*** Use a different LED this time (maybe blue!)
	** '''Hands-on:''' Figure out an appropriate current-limiting resistor		** '''Hands-on:''' Figure out an appropriate current-limiting resistor
	*** Hook it up to the output of the 555		*** Hook it up to the output of the 555 ([[Media:Intro_to_Electronics-Week4-1-555-LED.svg\|Schematic here (tested April 4, 2012)]])
	* Potentiometer		* Potentiometer
	** What is it?		** What is it?
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	*** '''Hands-on:''' Measure resistances between different terminals		*** '''Hands-on:''' Measure resistances between different terminals
	*** Could have used it in [[Intro to Electronics#Week_2:_Test_equipment\|Week 2]] to vary regulator output voltage		*** Could have used it in [[Intro to Electronics#Week_2:_Test_equipment\|Week 2]] to vary regulator output voltage
	** '''Another hands-on:''' Replace one of the 555 frequency-setting resistors		** '''Another hands-on:''' Replace one of the 555 frequency-setting resistors ([[Media:Intro_to_Electronics-Week4-2-555-potentiometer.svg\|Schematic here (tested April 4, 2012)]])
	*** Change its resistance and watch what happens!		*** Change its resistance and watch what happens!

Myersjustinc: /* Week 3: Optoelectronics */ Switched schematic link

2012-04-04T16:27:33Z

Week 3: Optoelectronics: Switched schematic link

← Older revision		Revision as of 16:27, 4 April 2012
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	** How does it work?		** How does it work?
	*** Apply light instead of base current		*** Apply light instead of base current
	** '''Hands-on:''' Add one to our circuit to switch the other transistor ([[Media:Week3-2-phototransistor.svg\|Schematic here (tested April 2, 2012]])		** '''Hands-on:''' Add one to our circuit to switch the other transistor ([[Media:Intro_to_Electronics-Week3-2-phototransistor.svg\|Schematic here (tested April 2, 2012]])
	*** Should look essentially identical to [http://www.evilmadscientist.com/article.php/nightlight the EMSL circuit], except that we'll keep a current-limiting resistor in series with the LED		*** Should look essentially identical to [http://www.evilmadscientist.com/article.php/nightlight the EMSL circuit], except that we'll keep a current-limiting resistor in series with the LED
	*** Note: This phototransistor (like many others) is mainly sensitive to infrared and will consider a room lit only by fluorescent bulbs to be "dark". Bring around a different lamp to test the projects.		*** Note: This phototransistor (like many others) is mainly sensitive to infrared and will consider a room lit only by fluorescent bulbs to be "dark". Bring around a different lamp to test the projects.