Arduino Projects
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Compact Battery-Powered Plant Monitor with the ATtiny85
Do you have a green thumb? Even if you do, this project will help remind you to water your plants. Simply place the Plant Monitor in the pot with your favorite plant and calibrate it to the appropriate soil moisture level. When the soil gets too dry, the LED will start blinking, giving you a…
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Ventilating Rooms with the Arduino
Are you someone who likes to ventilate your rooms but often forgets the windows open? This happens to me regularly – until now. In this project, an Arduino Nano monitors the temperature as soon as you open the window. If the temperature in the room drops by 0.5°C, it triggers an alarm. This way, you…
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Play Snake on the Arduino (and ESP32)
The classic game Snake has been with us for a long time on various devices – on PCs, Texas Instruments calculators, or even the venerable Nokia 3210. Thanks to its simple mechanics, the game can be implemented on almost any device with some processing power. So why not also on an Arduino? In this project,…
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An Arduino Theremin with Fixed Scale
In this project, you’ll learn how to build a simple Arduino Theremin using a piezo buzzer and the HC-SR04 ultrasonic sensor. But that’s not all – to help even inexperienced musicians impress their friends, this Theremin only plays notes within a scale that you define. In the following example, we’ll use the popular A minor…
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Arduino Alarm System with Sound Sensor
In this project, you’ll build your own Arduino alarm system. It consists of three components: a sound sensor, an active piezo buzzer, and an RGB LED. You’ll use the sound sensor to measure the ambient noise level. When certain thresholds set by you are exceeded or not met, the RGB LED will light up green…
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Recognizing Complex Gestures with AI and your Arduino
In this project, you will develop an AI model that can recognize complex gestures like circular movements and waving. You will then load it onto your Arduino Nano 33 BLE Sense and display the recognized movements in the terminal of your PC or Mac. With this setup, you can later build more sophisticated projects, for…
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Arduino Code Lock with Keypad and Servo Motor
In this project, you’ll build a Arduino Code Lock using a membrane keypad and a servo motor. Only by entering the correct combination will the servo motor move and potentially release a lock. Connecting the Membrane Keypad For a code lock, you naturally need a device to enter the code. The 4×4 membrane keypad is…
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Building an Arduino Weather Station
Have you ever wanted to know the temperature and humidity levels in your home or garden with precision? With this DIY Arduino weather station project, you can create your own customized environmental monitoring system. This beginner-friendly project combines the versatility of an Arduino board with affordable sensors to give you accurate, real-time climate data. In…
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Automatic Plant Watering With An Arduino
If you trust your Arduino more than your green thumb, this project is right for you. A sensor monitors the moisture in the soil – as soon as a certain value is undercut, a water pump starts up and waters your plant. Once the soil is moist enough again, your Arduino stops the pump. Discover…
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Arduino Snore Stopper with Artificial Intelligence
Snoring is annoying, that’s clear. There are devices, pillows, apps, and many other remedies against it – but most of them probably don’t live up to their promises. If you snore and have promised to do something about it, you can combine your suffering with your hobby using this tutorial: You’ll build an Arduino snore…
