I wanted a keypad that could be used to set various scenes in home assistant, without requiring software on my laptop. The Pi Pico is secured by 2 M2 screws (and optionally some hot glue), and the lid snaps onto the body. I am using ESPHome to program the Pico

The case design is inspired by: https://www.partsnotincluded.com/diy-stream-deck-mini-macro-keyboard/#2023-05-31T21:20:53+00:00

 

Parts used:

1x Raspberry Pi Pico W: https://www.adafruit.com/product/5526

8x Relegendable Keycaps:  https://www.adafruit.com/product/5662

8x Keyswitches: https://www.adafruit.com/product/4954

4x Rubber feet: https://www.adafruit.com/product/550

2x M2x6mm screws to hold the Pico in

Wire, Solder, Etc

 

Example ESPHome YAML:

esphome:
  name: office-macropad
  friendly_name: office-macropad
rp2040:
  board: rpipicow
  framework:
    # Required until https://github.com/platformio/platform-raspberrypi/pull/36 is merged
    platform_version: https://github.com/maxgerhardt/platform-raspberrypi.git
Enable logging
logger:
Enable Home Assistant API
api:
  encryption:
    key: "***"
ota:
  password: "***"
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
Enable fallback hotspot in case wifi connection fails
  ap:
    ssid: "Office-Macropad Fallback Hotspot"
    password: "6PEXOvXEvw65"
binary_sensor:

platform: gpio
pin:
  number: 16
  mode: INPUT_PULLUP
  inverted: True
name: "button1"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 17
  mode: INPUT_PULLUP
  inverted: True
name: "button2"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 18
  mode: INPUT_PULLUP
  inverted: True
name: "button3"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 19
  mode: INPUT_PULLUP
  inverted: True
name: "button4"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 20
  mode: INPUT_PULLUP
  inverted: True
name: "button5"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 21
  mode: INPUT_PULLUP
  inverted: True
name: "button6"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 22
  mode: INPUT_PULLUP
  inverted: True
name: "button7"
filters:

delayed_on: 10ms


platform: gpio
pin:
  number: 26
  mode: INPUT_PULLUP
  inverted: True
name: "button8"
filters:

delayed_on: 10ms