Power from NodeMCU, Wemos Mini D1 and Arduino
What must we take into account to supply external sensors and actuators?
What must we take into account to supply external sensors and actuators?
Using a screen with ESPEasy is very easy. Here the step by step instructions with video
Here you will find the differences and similarities between the MH-Z19B and Senseair S8 CO2 sensors
Build your own CO2 meter easily in one afternoon
CO2 (Carbon Dioxide) is a dangerous gas for humans. In high concentrations it can cause vertigo, headache, high blood pressure, fast heartbeat, suffocation and loss of consciousness.