switch-lamps

A switch for all my lamps 🛋️

Goals

• Making it possible to control all lamps from one place
• Making multiple switches work together (no state stored on the switch unit)
• Needs to be foolproof
• Adding new lamps should be reasonably easy

Hardware

Lamps

Communication over a serial connection.

• One long wall with lamps
  • 4 zones
  • one warm and one cold led strip per zone
• 3 table lamps
• ceiling lamps
• a few floor lamps
• possibly more lamps in the future

Inputs

• Slide up/down/left/right
• Press up/down/left/right
• Rotate left/right
• a proximity sensor

Sliding always also presses the corresponding button, so sliding has to overwrite pressing.

Outputs

• a Waveshare 1.54" B/W e-paper display
• the lamps, obviously

PCB design in hardware/.

Microcontroller

Arduino ProMini 3.3V (8MHz)

The switch is powered over a long wire without much throughput, which is also why the capacitors are needed. They provide a buffer for updating the display.

Software

• avr-hal (currently my fork for sparkfun-promini-3v3 support)
• epd-waveshare and embedded-graphics for the display

current state