User Manual

Extra GPIO Pins

There's also two "GPIO" pins, you can use these to blink LEDs. The initial state of these pin sets up the chip for Analog

Mode so don't short them to ground or VCC during reset. They are 3V output only!

GP1 - this is GPIO #1

GP2 - this is GPIO #2

GPIO #3 is used for the 32Khz clock generator onboard.