In this lesson we lean how to use ESP8266 module ESP01 to measure temperature and humidity by using DHT11 or DHT22 over Wi-Fi. We first prepare Arduino IDE to be ready for ESP8266 chip, then we program ESP01 module to have LED Blink, our 2nd project is to measure temperature and humidty and display it on the Serial Monitor. Then the 3rd project is to measure temperatuer and humidity and view it on mobile phone or on computer screen.
