NeoKey Socket Breakout with NeoPixel for MX and CHOC Key Switches

by Kattni Rembor

published June 13, 2023, last updated September 16, 2024

posted in Adafruit Products LEDs/ LED Pixels CircuitPython Breakout Boards Programming/ MicroPython / CircuitPython

5

Updated

Beginner

Product guide

Pinouts

MX socket on the left, CHOC socket on the right.

MX socket on the left, CHOC socket on the right.

Key Switch Pins

S+ (A) - This is the switch anode, the 'positive' side of the switch+diode. If you're using the switch with a pull-up resistor, connect this pin to your microcontroller. If you're using a pull-down, connect this pin to your logic level power pin.
S- (C) - This is the switch cathode, the 'negative' side of the switch+diode. If you're using the switch with a pull-up resistor, connect this pin to ground. If you're using a pull-down, connect this pin to your microcontroller.

NeoPixel Power Pins

VDD - This is the power pin for the NeoPixel. Connect it to 3VDC-5VDC power.
GND - This is the ground pin for the NeoPixel. Connect it to ground.

NeoPixel Data Pins

IN (I) - This is the data-in pin for the NeoPixel. Connect this to a microcontroller GPIO pin.
OUT (O) - This is the data-out pin for the NeoPixel. If you are connecting more than one breakout together, you would connect this to the IN pin on the next breakout in the sequence.

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