by Sebastian Gustavsson (sg222yu) Overview This tutorial contains information on how you create a temperature and humidity sensor. The devices also use an oled display and tree led lights. The microcontroller used for this work is an ESP32 from ZHITING. To handle all the data and events this tutorial uses Node-RED (low-code programming tool for event-driven applications) and InfluxDb (time series database). The device uses the home network (Wi-Fi) to connect to the internet. The programming language used to program the EPS32 is micropython and some basic javascript was used in Node-red. Everything was created on a Window 10 PC.