Morse Pixel

Button + NeoPixels + MQTT

Simple control of neopixel lights using MQTT protocol. Get the device online and witness folks turning their lights on and off on your device.

• Button publishes MQTT message
• Light 1 responds to button clicks
• Light 2 responds to MQTT messages

Not included: A broker, we lean on HiveMQ's public broker. So anyone can see your messages, and subscribe to anyone elses.

Raspberry PI Pico + Morse Code key

BOM (Bill of Materials)

• Pico PI
• NeoPixels
• Switch
• Wires

Assembly

1. Bent the pins on the PI to reduce required wiring
2. Wires can go to any kind of (normally open) button/switch

Provision software to Pico

1. Flash micropython firmware (plug it in and drag/drop this file to it) : After doing this I see the device as /dev/ttyACM2 on my system (ubuntu 22), yours will probably be different
2. Install umqtt on pico (multple ways to do this... here is one)
   1. ampy -p /dev/ttyACM2 put install_libraries.py main.py
   2. Turn it off and back on again
3. Upload code using apmy
   1. ampy -p /dev/ttyACM2 put wifi.py
   2. ampy -p /dev/ttyACM2 put main.py
   3. Turn it off and back on again
4. Press your button