Pixel clock for ESPhome

Simple ESPHome pixel clock based on WS2812b lightstrip with 17x5 display.

Preparation

Materials needed:

• Wemos D1 Mini (example)
• WS2812b LED strip IPx0 without protective coating (100 LEDs/m) (example)
• 1x resistor from 220 Ω to 470 Ω
• some wires and soldering iron
• 6x M3x10 screws

1. Print all three STL files. They could be printed completely using white plastic. Or change the material to black color after printing 1 mm of 'clock screen.STL' if you like it in such way, as i did it.
2. Cut the WS2812b LED strip into 5 strips with 17 LEDs each and solder everything according to wiring diagram:
3. Put the strips into the sockets into printed display and pull the wire through the hole in the middle frame. Connect the board, bend the wires and close the case.

Installation

Already installed and running ESPHome is needed. For more info see Getting started with ESPHome.

1. Copy contents of ./esphome ('led-clock.yaml, 'secrets.yaml' and 'animations' directory) to ESPhome configurations location. If you already have 'secrets.yaml', then just edit it accordingly.

   Usually esphome path is:

   /usr/share/hassio/homeassistant/esphome
   

2. Edit 'secrets.yaml' by entering your wifi_ssid, wifi_password, ota_password and api_encryption_key.

   ota_password is just a key that will be needed to be able to update the clock device wirelessly over the air afterwards.

   api_encryption_key Is a unique BASE64 key which can be generated here:

   

3. Edit manual_ip: subsection of wifi: section in 'led-clock.yaml' and enter the IP configuration for your clock.

   If you prefer dynamic IP assigned by your router, you can just comment those lines out using '#' symbol:

   #      static_ip: 192.168.1.222
   #      gateway: 192.168.1.1
   #      subnet: 255.255.255.0

4. After opening ESPHome user interface you will a new device called "led-clock" will be available:

   

   Press "EDIT" button you to see the yaml code.

5. Connect the board to your PC using USB and install the firmware:

   INSTALL > Plug into this computer

   Wait untill firmware will be prepared and follow the on-screen instructions.

   Afterwards it will be possible to do future firmware updates wirelessly via OTA.