LEDs MAKE Presents: The LED - http://youtube.com/watch?v=P3PDLsJQcGI
LED Resistor Calculation Let’s assume we have a 9V source… R = V / I R = (9-3.4) / (20*10-3) R = 280 Ω Nearest standard value is 330 Ω List of standard resistor values: http://www.logwell.com/tech/components/resistor_values.html
Shopping for Bits and Bobs Components Suppliers Farnell, Rapid, RS, Maplin, Digikey, Mouser… Hobby/DIY Suppliers Sparkfun, Oomlout, Adafruit, SKPang, Cool Components… eBay Be careful! Shameless Plug: http://tinkersoc.org/resources/ (we do organise group buys and have a junk trading wiki page)
The BreadBoard! * Drawn using the new Fritzing, which totally rocks!
That’s all folks… Thanks for listening, any questions? Further questions/comments to: firstname.lastname@example.org A special thanks to all the wonderful people who licensed their photos/videos under Creative Commons licenses, without them these slides would be boring as hell ;)