I'm (finally) in the process of building my Gertboard Kit, and I want to swap the leds provided (3mm) for something bigger and also 4 each of green, yellow, red.
The Farnell part number on the LEDs in the kit is 158-1113. Farnell's web site says that this led is rated at 2v, 20mA. This suggests a 68R resistor in series when running from 3V3, yet the resistor networks seem to be 1K parts
Am I missing something here? Or do I just find some 2V 20mA leds in different colours and swap them out assuming that it will all work?