Si7021 Temperature Sensor Arduino Tutorial
In this tutorial you will learn how to measure temperature and relative humidity using the Si7021 Sensor and an Arduino. The Si7021 sensor is a …
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 ; )
Ambient Light Sensor BH1750 with Arduino
In this tutorial you will learn how to use the Ambient Light Sensor BH1750, an OLED and an Arduino Uno to measure and display light …
UV Index Meter With VEML6070 and Arduino
In this tutorial you will learn how to build a UV Index Meter with an VEML6070 UV light sensor, an OLED and an Arduino Uno. …
Weather Station on e-Paper Display
Learn how to build weather station with an ESP32 that displays local or internet weather information on an e-Paper display. In this tutorial you will …
Dust Sensor DSM501a with Arduino
In this tutorial you will learn how to use the Dust Sensor DSM501a with an Arduino to assess air quality. The DSM501 dust sensor module …
Simple ESP32 Internet Weather Station
In this tutorial you will learn the basics of how to build your own internet weather station using an ESP32. We will download weather data …
Dust Sensor GP2Y1010AU0F with Arduino
In this tutorial you will learn how to use the Dust Sensor GP2Y1010AU0F with an Arduino to measure dust density. We will discuss the sensor’s …
More Inputs With 74HC165 Shift Register
In this tutorial I will show you how to add more inputs with the 74HC165 Shift Register to your Arduino or ESP8266/ESP32. The popular Arduino …
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 …
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. …