Specifications:
- 12 x GPIO with selectable pullup resistors: 0-5, 6, 8, 11, 14, 15, 16
- 9 x 10-bit ADC inputs - pins 0, 1, 2, 3, 4, 5, 14, 15, 16
- 5 x 8-bit PWM outputs - pins 0, 1, 7, 11, 16
- 1 x NeoPixel output (up to 250 pixels)
- 1 x EEPROM with 127 byte of NVM memory (handy for storing small access tokens or MAC addresses) - last byte of EEPROM is used for I2C address selection
- 1 x Interrupt output that can be triggered by any of the accessories - pin 6
- 2 x I2C address selection pins - pins 12 and 13
- 1 x Activity LED on pin 10, tied active low
Technical details and tutorial