Articles about: NodeMCU

Power from NodeMCU, Wemos Mini D1 and Arduino

January 17, 2021January 13, 2021 by Mariete

What must we take into account to supply external sensors and actuators?

Using a buzzer with ESPEasy

29 December, 2020December 28, 2020 by Mariete

Everything you need to know to use a buzzer with ESPEasy

Connect an SSD1306 OLED screen to ESPEasy

January 9, 2021December 21, 2020 by Mariete

Using a screen with ESPEasy is very easy. Here the step by step instructions with video

Comparison of CO2 sensors MH-Z19B vs Senseair S8

23 December, 2020December 17, 2020 by Mariete

Here you will find the differences and similarities between the MH-Z19B and Senseair S8 CO2 sensors

A homemade CO2 meter with Wifi against the coronavirus

January 17, 2021November 22, 2020 by Mariete

Build your own CO2 meter easily in one afternoon

Wifi Home CO2 Meter (Knowing We Breathe)

3 December, 202012 January, 2017 by Mariete

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.