Microcontroller Tutorials and Smart Home Projects

Active and Passive Buzzer for Arduino, ESP8266 and ESP32 In this tutorial you learn how active and passive buzzer work and the differences between both

Sound Sensor Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn everything about the KY-038 and KY-037 microphone sound sensor modules. After the

Guide to Reduce the ESP32 Power Consumption by 95% If you want to create a project that runs on battery, you have to make sure

MQ2 Gas Sensor Tutorial for Arduino, ESP8266 and ESP32 In this tutorial I show you how to use the MQ2 gas sensor with your Arduino,

KY-026 Flame Sensor Tutorial for Arduino, ESP8266 and ESP32 In this article you learn how to build your own fire alarm that could detect a

SD Card Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn how to use the SD card module in combination with your Arduino,

Guide to reduce the Arduino Power Consumption In this guide I show you 3 hardware and 1 software measure that reduce the energy consumption of

What is the best battery for the EPS32? In this article you learn what is the best battery for the ESP32 microcontroller. First I describe