Motion Activated ESP32-CAM
In this tutorial you will learn how to build a motion-activated, battery-powered ESP32-CAM (AI-Thinker) to take pictures, whenever a PIR sensor detects movement. We will …
Inputs and Sensors
In the following posts we give you a detailed insight into the many input devices and sensors commonly used in Arduino, ESP32 and similar microcontroller projects.
From simple switches and buttons to advanced sensors like accelerometers, gyros, temperature, humidity, and pressure sensors. Here you find how to integrate and use these devices.
We also have two specific overview articles:
Have fun ; )
Programming the ESP32-CAM
In this article you will learn the programming of the ESP32-CAM module. The ESP32 Camera modules are comparatively cheap and very nice to build simple …
Read Fan Speed Signal with Arduino
In this tutorial you will learn how to read the speed or tachometer signal of a 3- or 4-wire fan using an Arduino. Fans are …
How to use the MQ-2 Gas Sensor with Arduino and an OLED
In this article, we will learn how to use the MQ-2 gas sensor with an Arduino to display gas levels on an OLED display. The …
How to Build a Motion Activated Night Light
In this tutorial, we will learn how to build a motion-activated, battery-powered, night light using an ESP32 lite and a PIR (Passive Infrared) sensor. This …
Control a Stepper Motor with an IR Remote
In this tutorial, you will learn how to control a stepper motor using an IR remote control. Stepper motors are widely used in various applications, …
How to Control a Servo with an IR Remote
In this tutorial, we will learn how to control a servo motor using an IR remote and an Arduino. Servo motors are widely used in …
Sensors for Arduino and other MCUs – A complete overview
Sensors are the eyes and ears of an Arduino system, transforming the analog and digital world around us into a language that microcontrollers can understand. …
Input devices for Arduino and other MCUs – A complete overview
Input devices let the Arduino and other microprocessors interact with the world. Without it, an Arduino would simply run its program with no way to …
How to use the MQ-4 Methane Gas Sensor With Arduino
In this tutorial, we will learn how to use the MQ-4 Methane Gas Sensor with Arduino to build a gas detection alarm system. This system …
How to use Arduino UNO with TM1638 7-Segment LED Driver
In this article, I will show you how the TM1638 7-segment LED driver IC works and how to connect it to an Arduino UNO. I …
Interfacing ESP32 And TCS34725 RGB Color Sensor – A Complete Tutorial
In this article, I will show you how to use the RGB color sensor TCS34725 with an ESP32 microcontroller to measure the color temperature of …
Interfacing ESP32 And JSN-SR04T Waterproof Ultrasonic Sensor – An In-depth Tutorial
In this article, I will show you how to use the waterproof ultrasonic sensor JSN-SR04T with an ESP32 microcontroller. The JSN-SR04T sensor is used in …
ESP32 And GP2Y0A21YK0F Distance Sensor
In this article, I will show you how to use the proximity distance sensor GP2Y0A21YK0F with an ESP32 microcontroller. The proximity sensor GP2Y0A21YK0F is an …
Interfacing ESP32 With A Force Sensor
In this article, I will show you how to use a force sensor with an ESP32 microcontroller. The force sensor commonly available varies its resistance …
Interfacing ESP32 And TMP36 Temperature Sensor
In this article, I will show you how to use the TMP36 temperature sensor with an ESP32 microcontroller. The TMP36 is a low-cost, low-voltage temperature …