Microcontroller Tutorials and Smart Home Projects
I am Christopher and on my blog I want to share my knowledge about microcontroller and smart home projects.
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Active and Passive Buzzer for Arduino, ESP8266 and ESP32
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
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%
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
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
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
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,

I2S Sound Tutorial for ESP32
I2S Sound Tutorial for ESP32 In this tutorial you learn how to use the I2S communication protocol to transfer digital sound signals to record and

Guide to reduce the Arduino Power Consumption
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 ESP32
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