An ESP32 based temperature monitoring, regulation and alerting system. Configurable via a web interface, with statistics and metric logging.

Designed so that I could monitor the temperature of a mini fridge, shipping metrics back to a server, and turning the fridge on and off via a relay to ensure a precise constant temperature is maintained. I am using this when hibernating tortoises.

I plan to use this to monitor and control a mini fridge used to hibernate tortoises, but this could be used for other purposes like:

• monitoring a green house and using it to open and close shutters
• rather than using a temperature sensor, use an air quality sensor and control the opening and closing of window, or turning on or off an air purifier
• monitoring your house temperature and controlling central heating

Work is in progress

• ESP32
• Relay
• LCD Screen
• Multiple DS18B20 Temperature probes
• LED

• LCD Screen to display current temperature
• Web server to allow remote monitoring, configuration and control
• Editing and editing of configuration via webpage, api and uploaded file
• OTA Updates of firmware
• Metrics shipping via TICK stack
• Logging via syslog
• Warning LED
• Remote control via webapi to allow integration with automation

• To open and close fridge door
• To control a fan to control air circulation
• Integration with Amazon Alexa and Google Home, to allow you to monitor the status, or even have it initiate commands to other devices managed by Alexa or Google Home
• Integation with IFTT
• Integration with pushover
• Integration with twitter
• Integration with twilio
• Integration with users own webhooks