I thought I’d have some fun and hook up a serial 2x16 LCD to an AR-150.
It’s connected through the TX pin of the on board UART.
I had to source 5V somewhere and decided to connect it up to GND and +5V pinholes intended for the PPoE module. Not sure if that is OK but there is no smoke and all is rolling nicely.
Is there a better way to source 5V power from the PCB?
Can you describe in more detail which parts you did use, how to put them together, which software you did use, how you did the configuration, etcetera?