CO2 sensor with LCD and ESP32-C3 Supermini
I wanted to add an LCD screen to my CO2 sensor, so I bought a white LCD 1602 with an I2C controller. The I2C controller needs to be soldered to the LCD, but my basic soldering skills were sufficient for…
Tag esphome
MH-Z19B CO2 sensor
To keep a healthy environment at home or at the workplace, one of the important things to control is the carbon dioxide (CO2) level. It’s measured in ppm (parts per million), indicating how many parts of CO2 there are in…
Improving WiFi reception with an ESP32-WROOM-32U
I’m using a ESP32 with ESPHome connected to my heating system for climate control, as expained in a previous post. The heating system is in a different builng than the router and I was experiencing some WiFi coverage issues (the…
ESPHome in a RTL8710BX smart plug
I bought from a popular chinese store a generic Tuya smart plug with power monitoring. It was extrememly cheap, costing less than 4 EUR. And of course I bought it to play trying to flash ESPHome. The first challenge was…
Climate control with ESPHome and Home Assistant
Two years ago I started to need controlling my home heating system while I’m not at home. I could go the easy way and buy a couple Nest thermostats, but I preferred the DIY way. ESP32 board with ESPHome I…