The diagram below provides a general visual reference for wiring of the components once you get to the Assembly page. This diagram was created using the software package Fritzing.

Adafruit Library for Fritzing

Adafruit uses the Adafruit Fritzing parts library to create circuit diagrams for projects. You can download the library or just grab individual parts. Get the library and parts from GitHub - Adafruit Fritzing Parts.

Wired Connections

CNC Rotary Encoder

• GND from rotary encoder to GND pin on Feather
• VCC from rotary encoder to 3V pin on Feather
• A from rotary encoder to A3 on Feather
• B from rotary encoder to A4 on Feather

3x4 NeoKey Snap Keypad

• NeoKey Snap COL 1 to A0 pin on Feather
• NeoKey Snap COL 2 to A1 pin on Feather
• NeoKey Snap COL 3 to A2 pin on Feather
• NeoKey Snap ROW 1 to D12 on Feather
• NeoKey Snap ROW 2 to D11 on Feather
• NeoKey Snap ROW 3 to D10 on Feather
• NeoKey Snap ROW 4 to D9 on Feather
• NeoKey Snap IN (I) top left to D5 on Feather
• NeoKey Snap GND to GND on Feather
• NeoKey Snap VIN to 3V on Feather

5V USB Power

The Feather is powered by 5V USB plugged into a computer.