I built a custom PCB in a 3D-printed enclosure to control a motorized arm to automatically open and close my bedroom window. All integrated with my existing home automation stack. For much more detail, read my Window Opener blogpost.
This repository contains all related source material.
PCB/: PCB related files in various formats. For easy editing, use the json file to import into EasyEDA.esphome/: ESPHome config filesCAD/: CAD (3D) models of the enclosure and custom hinges that were 3D printed. I used Fusion360.diagrams/: Some diagrams in Fritzing and KiCad. Some of these are not entirely up-to-date with the latest build, but they should still be useful if you want to understand some of the details.gcode/: gcode files to print the 3D models. These are mostly for my own consumption as you'll probably have re-slice the STL files in theCAD/folder to match your printer and filament.collage/: files related to a project collage I made to put up on the wallarchive/: various files related to prototyping and experimentation
The window_opener.yaml has secret values which are read by ESPHome from secrets.yaml at compile-time.
So for this to work, you'll need to create a secrets.yaml file that looks like the following.
deviceid: my_device_id
devicename: "Human Friendly Device Name"
wifi_ssid: mywifissid
wifi_password: "mypassword"
wifi_static_ip: 10.0.0.2
wifi_gateway: 10.0.0.1
wifi_subnet: 255.255.255.0
wifi_fallback_ap_password: "WifiFallbackPassword"
wifi_fallback_ap_ssid: ESP-FallbackWifi
api_password: "apipassword"
ota_password: "otapassword"The first time doing this, the ESP device will need to be connected to your computer using a serial connection. After the first run, you can do this over Wifi (ESPHome supports over-the-air firmware updates).
virtualenv .venv && source .venv/bin/activate
pip install esphome
esphome esphome/window_opener.yaml run
# Specify serial port
esphome esphome/window_opener.yaml run --upload-port /dev/cu.usbserial-143230Use the 'integrations' page in home-assistant to connect to the ESPHome device.