This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.
Project tutorial by Mirko Pavleski
3-channel voltmeter with the ability to measure both negative & positive voltages on the same circuit or 3 different circuits simultaneously
Project tutorial by Shahariar
There are numerous examples of how to connect button switches via an external interrupt. This example offers an alternative approach.
Project tutorial by ronbentley1
Improved version of the soldering iron controller for Hakko 907 iron.
To simplify building the controller, LCD screen is implemented.
Project tutorial by Alexander
Learn how to submit your Arduino-based project. It may even get featured on the Arduino social channels!
In this tutorial, I will show you how to install the dark theme for your Arduino IDE for the reason of overexposure to the screen light.
Project tutorial by the lonely programmer
If you can't find a voltmeter at home or anywhere else, then this hack is for you!
Project showcase by Team Next Tech Lab
Simple Arduino Uno - ESP8266 software serial integration.
Project tutorial by circuito.io team
An Arduino powered floppy disk controller and reader/writer for making and writing disk images from and to old AmigaDOS floppy disks.
Project tutorial by RobSmithDev
An ultimate tutorial for beginners on how to connect and use an ESP8266 via Arduino and program it to blink an LED using the Blynk app.
by Inventor Niv
Things you should know using ESP8266 WiFi module for its safety and easiness as it's very delicate module to use.
by Patel Darshil
The cheapest micro soldering station in the world, using a cheap USB soldering iron.
Project tutorial by Paulo Bruckmann
Calibrating Atlas Scientific's EZO pH sensor using Arduino Uno.
by Atlas Scientific
This project illustrates switching using a transistor.
Serial Communication between ESP2866-12 (NODE-MCU) and Arduino to increase the number of analog pins as my primary work.
Project showcase by Pawan Kumar
Use the IO Expander and Relay Expander with the Arduino to control up to 65,280 relays!
Project tutorial by Christian
Control 256 relays! Seeing is believing!
An arduiNOOB friendly tutorial for beginners on daisy-chaining.
Project tutorial by HeathenHacks
A simple project, involving transferring value of a sensor, which is connected from one Arduino to another, and getting a required result.
by Chandran N
The software library to calculate moon age, sunrise and sunset time.
An Arduino powered floppy disk controller and reader for making disk images from old AmigaDOS floppy disks.
Project tutorial by Team RobSmithDev
Learn how to use the Arduino Desktop IDE at its best and install it on your PC!
Probably the most useful Arduino project I've ever made! A automatic tester for a product I sell.
Project tutorial by Brian Lough
A quick and simple guide on how to easily connect your Arduino to the pixy cmuCAM!
Project tutorial by Joe
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