PWM Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn what Pulse Width Modulation (PWM) is and how to create different PWM signals from your Arduino, ESP8266 or ESP32 microcontroller. In two detailed example you change the brightness of an LED and control the speed of a DC motor by using the PWM … Read more
Raspberry Pi vs Arduino Comparison In this article you learn the differences between the Raspberry Pi and the Arduino and why I use both of them in my projects. The Raspberry Pi vs Arduino comparison is done in different categories: System and Operating System Connections and GPIOs Data Transfer Operating Power and Power Consumption Advantages … Read more
Servo Motor Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn everything you need to know about the functionalities of a servomotor. First we learn the theoretical foundations how a servomotor works. In multiple example you learn how to control one or multiple servo with your Arduino, ESP8266 or ESP32 microcontroller. Table of … Read more
Arduino Interrupts and Timed Events In this tutorial you learn the functionality of Arduino interrupts and how to time events with this function. The advantage of timed events is to perform a specific task when an event occurs, Independent of the current task that the microcontroller is performing, like sending important sensor data, even if … Read more
Reed Switch Tutorial for Arduino, ESP8266 and ESP32 In this article we use the KY-025 and KY-021 reed switch modules with different Arduino, ESP8266 and ESP32 boards to turn on a LED based on a magnet. I show you how to connect both reed switches with the different microcontroller and how to program the script … Read more
Hall Sensor Tutorial for Arduino, ESP8266 and ESP32 In this tutorial we cover the Hall Sensor, a sensor to measure magnetic fields. First we describe what the Hall Effect is and how a hall effect can be measured from a sensor. After we know the fundamentals, we cover two different sensors: KY-024 Linear Hall Sensor … Read more
Segment LED Display Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn how the three most important segment LED displays work. We cover every segment display with examples and the correct wiring. The 3 different displays are: 7 Segment Display 4 7 Segment Display 8×8 Dot Matrix Display Also this article cover the … Read more
LED Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn how to control different LEDs with your Arduino, ESP8266 or ESP32 based micrcontroller. The different LEDs give you total flexibility in your projects. Staring from a simple one color LED, to indicate the status of a system, to a multi-color LED that is … Read more
Sound Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn everything you need to know about two different sound devices: The KY-038 sound sensor which acts like a microphone and is able to measure the volume of sounds. The Big Sound module and Small Sound module are part of this group. Buzzers or speakers … Read more
Resistor Tutorial for Arduino, ESP8266 and ESP32 In this article we cover different kinds of resistors like: Photoresistors (measure the light intensity) Potentiometer (a voltage divider) Thermistors (measure the temperature) Also we will look deeper in the functionality of the voltage divider which gives us a basic understanding how these different kinds of resistors work. … Read more
