symunona / thermo

My raspberry PI thermostat with web frontend and simple API

Bond's thermo

I had a few raspberries lying around, I refreshed my Python knowledge and made a custom remote controlled thermostat from with a relay.

Consists of two parts

Web Interface

running on my pulbic facing VM

• simple express api with basicauth
• running on my VM
• saves state to local files

Python Thermostat Controller

running on the rPI

• measures temperature via an Adafruit MCP9808 sensor (I2C bus)
• handles buttons (pins 12, 20)
• queries the API for initial settings (REST with basicAuth)
• sends updates to the API
• works offline too
• saves state to local files

Setup

PI

• Instal a fresh pi
• check out this repo
• add users to the users.json file
• add python startup to crontab
• create users.json file from example.

Web Interface

• install node
• set recommended security measures
• check out repo
• run npm i
• create secrets.js file from example with openWeatherMap api key.
• add node thermo-api.js to forever

---

I was at:

• express api kinda working
  • ✅ trace to log when status is hit.
  • log should be sent even on network error
    • trace last log entry date
    • sync clocks
• python should start sending api updates to the new service
  • send when:
    • ✅ measured temp changed
    • ✅ button pressed
  • ✅ poll last updated temp setting, see which one is more recent
• web interface pretty much working