ESP_Thermostat is a full-featured Smart Thermostat created using an ESP8266 board and other common parts.
- Smart Home integration
- Week based schedule
- Controlled from everywhere
- Works offline
- OTA firmware updates
ESP_Thermostat is compatible with most smart assistants like Alexa and Google Home.
It can be programmed with a schedule where you can specify a different temperature for every half an hour of every day in a week.
You can control the thermostat directly from Alexa and Google Home, however, both apps do not support the thermostat schedule feature. To fix this I've made an app specifically to support this feature on ESP_Thermostat.
ESP_Thermostat is designed to operate offline with a display and 3 physical buttons, one for thermostat mode and two for temperature up and down. The only thing that cannot be changed without the internet is the schedule (but that's going to change soon).
The firmware can be upgraded over the local network, meaning that it doesn't have to be unmounted from the wall to flash a new firmware.
Parts needed to assemble it:
- ESP8266 development board (NodeMCU, WemosD1, etc..)
- DHT22 temperature and humidity sensor
- A relay appropriate for your board
- SSD1306 128x64 0.96" Display (optional)
- 3 push buttons (optional)
The easiest way to build and flash the firmware is probably to use VSCode and the PlatformIO extension. If you don't have all the optional parts assembled, before building the firmware, you need to add a few build flags:
-D NO_DISPLAYif you don't have a display-D NO_BUTTON_INPUTif you don't have the 3 buttons
The project is mostly working and will be ready to be used soon.
Currently, it only works on one type of boiler, which is the type that has a single contact to control it.