Sketch of transistor tester project from Karl-Heinz Kübbeler, so it's much simpler to study, modify, verify and upload to an Arduino.

Extension to Ben Eater's breadboard computer that allows saving/loading programs and works as a monitor, assembler and disassembler.

Connect up to 10 buttons using a single interrupt.

This Arduino-powered Web Oscilloscope supports trigger, and changing voltage/div, offset and time / div. It supports 6 channels.

Get not only 5 volts but also 9, 12 volts (18 Watts max) out of any QC-compatible charger/power bank for supplying power hungry projects.

In this tutorial I will explain how to use the TIMER0 of Arduino

A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems.

A programmable, portable, rechargeable power supply based on Arduino featuring an OLED display for viewing V.I.P. of projects/prototypes.

More complex microcontroller projects often require a menu-driven interface. This library for XOD can help autogenerate them from a diagram.

You need to send a command to Arduino.

Power management for portable Arduino projects.

We live on a beautiful planet called earth, do you know how much is its weight? Lets find out.

This library creates an 8-bit IO port for Arduino by combining any 8 Arduino pins. With this library, one can send/get direct 8-bit data.

Equipped with a keyboard, Ethernet Shield and LCD monitor, is able to execute built-in command and even to send command to a telnet server!

This post will take you through a step by step instruction on how to use the Rakwireless RAK811 lora module with Arduino

A general tutorial on installing Arduino bootloader on ATmega8 AVR microcontroller and programming it using Arduino IDE.

A small tutorial project that tells you what direction your joystick is pointing in when you push it.

This project uses an ultrasonic distance sensor to create a pocket of wave interference where a small object can be levitated.

A sensor that recognizes the name of the color of an object based on light sensing and a neural network that learned from previous examples.

Android device controls Arduino's inputs and outputs using USB and serial protocol.

This projects explains the basic set up of automation using DTMF technology.It can be applicable in any automation field.

Measure CO2 levels.

Everyone uses a 16MHz oscillator for a homemade Arduino, but did you know that ATmega328 can run without it?

Thermistor as thermometer.