Started by flavigny, October 06, 2012, 12:29:13 pm
Quote from: flavigny on October 06, 2012, 12:29:13 pmHello,the LED1 is not documented in the user manual.
QuoteAnyone could confirm how to connect a LED.
Quote from: Kean on October 06, 2012, 04:46:02 pmLooking at the schematic of Micro board, LED1 anode is connected to the GPIO, and its cathode connects to GND via a 2k2 resistor. So the GPIO is sourcing current. Different resistors can be used based on the Vf of the LED you use and brightness required, but I'd always recommend including one (100R or greater) and not relying on any GPIO current limiting.Kean