Changes

=== Lightbulb ===

Same as the LED, but it is a higher current load. Your microprocessor can not source enough current to power the bulb. We need to use a power transistor: TIP120. This allows you to control a larger current (the bulb) with a smaller current (digital out from the chip).

[[Image:Lamp_fader.png]]

[[Image:BULB.JPG|400px]]