one button mx

Small housing for Cherry MX or similar.

Enough space for an additional WS2812 LED to be taped onto the ESP8266.

For example to use with home assistant with or without visual feedback.

required parts:
1x cherry mx or similar
1x d1 mini clone (usb micro)
1x ws2812b led


connections:
+5 V ws2812b led -> 5 V d1 mini
d in ws2812b led -> d1(gpio5) on d1 mini
gnd ws2812b -> gnd on d1 mini

button contact 1 -> d2 (gpio4) on d1 mini
button contact 2 -> gnd on ws2812b led

minor update 11.07.2024:

Base: micro usb port optimized
Top: thinner top for better light effect
Cap: -/-
Software: Example .ino, based on button cycler from adafruit neopixel library.

The software cycles between red and green and sends color via usb serial port.