SD Card Tutorial for Arduino, ESP8266 and ESP32

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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, ESP8266 and ESP32 microcontroller board. We create a temperature logger where we store the time from a real-time clock module, the temperature and humidity to a micro SD card. Table … Read more

Guide to reduce the Arduino Power Consumption

Arduino Pro Mini Measurement

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 the Arduino microcontroller up to 89%. The following measures are done in this tutorial: Use a Smaller Microcontroller (Hardware) Reduce Clock Speed (Hardware) Reduce Operation Voltage (Hardware) Use the Arduino … Read more

What is the best Battery for the ESP32

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What is the best battery for the ESP32? In this article you learn what is the best battery for the ESP32 microcontroller. First I describe the different voltage levels on the ESP32 board to avoid magic smoke and a damage of the microcontroller. On top of all this content, you learn which batteries need a … Read more

The best battery for ESP8266 microcontrollers

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Best Battery for ESP8266 microcontroller In this article you learn what is the best battery for the ESP8266 microcontroller. First I describe the different voltage levels on the ESP8266 board to avoid magic smoke and a damage of the microcontroller. On top of all this content, you learn which batteries need a voltage regulator and … Read more

INA219 Tutorial for Arduino, ESP8266 and ESP32

INA219 battery discharging curve bus shunt load voltage

INA219 Tutorial for Arduino, ESP8266 and ESP32 The INA219 is a current and voltage sensor that you use with any Arduino, ESP8266 or ESP32 microcontroller. You can measure up to 26 volts and use the I2C communication to transfer data to the microcontroller. In this tutorial I use the INA219 to measure the discharging curve … Read more

Arduino Nextion Display Tutorial

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Arduino Nextion Display Tutorial In this tutorial you learn everything you need to know about the Nextion displays and the differences in the display series. I show you how to create an interface in the Nextion Editor and how to use the internal programming functions. This article also contains a basic example to learn the … Read more