Planning Your Project

http://www.reddit.com/r/electronics/comments/r42iu/need_help_with_choosing_driver_for_leds/ considerations: how many run simultaneously, adjust brightness, etc.

figure out limiting factors cost vs. design + build time vs. form factor requirements

components:

• resistor
• capacitor

• transistor

  mosfets are voltage components bjt are current components

http://www.pcbheaven.com/userpages/LED_driving_and_controlling_methods/?topic=worklog&p=3

IC

photoresistor