If you can't find a voltmeter at home or anywhere else, then this hack is for you!

A single Arduino Uno/Mega can carry up to 14 RS-232 boards. Each board is distinguished by ID, which is set via a DIP switch.

An Arduino UNO Flash and RAM update with the ATmega2560 as DIL 28 variant.

Serial Communication between ESP2866-12 (NODE-MCU) and Arduino to increase the number of analog pins as my primary work.

Easy way to control variables with one rotary encoder and OLED display.

6-channel digital sampling oscilloscope with built-in frequency counter, maximum sampling rate 47kHz.

Why are even the modern day cars are not equipped with biometric entry system? Here is an attempt on a Toyota C-HR.

Everyone needs a good scale in kitchen, what better than to build a high precision scale with the UNO?

This project takes a simple RFID Reader and adds an LCD display to it.

This project can add two 3-digit binary numbers to turn into a 4-digit binary number. Math homework solved!

Easily include oscilloscope and frequency counter diagnostics into your own project.

Measure the unknown resistor with a simple configuration!

Mini-thermostat with input for a 2-wire NTC thermistor and output for a resistive heating element. Plus code & schematics.

Analyze digital inputs on up to six channels using the ATmega328 (e.g. Arduino Uno / Nano / Ethernet / Mini).

Make a Linux distribution that is focused on the development of Arduino and IoT. It's a Distro for Arduino.

For industries that produce switches and socket and there would be a need to test the mechanical durability and electrical durability.

Translate analog XY-plotter output to HP-GL command stream.

A model of neuronal functioning & synaptic modification allow replications of drives, behaviors, affects & learning (Operant Conditioning).

A simple method to power a servo on or off from the Arduino, using a NPN Darlington Transistor (TIP-120) and an Arduino.

How to use the ArduiBox Open DIN rail enclosure set for Arduino Nano, UNO and Yun Rev 2.

A symmetric power source for audio amplifiers controlled by the Arduino's PWM with max output +-30v 10A.

Demonstrates the Arduino capacitance meter and RC time constants project.

Stream your spin bike RPM data to Power BI for real time reporting and dashboarding.

An Arduino camshaft measurement tool.