Using MH-Z19B CO2 Sensor, DHT22, OLED Display, and ESP32 with Arduino This project combines the MH-Z19B CO2 sensor, DHT22 temperature and humidity sensor, and an OLED display with the ESP32 to measure ...

Project Overview: This project is a complete embedded system that monitors environmental temperature and humidity, and sends the data to a cloud server for visualization. The system is based on a ...