A DAC is a circuit that allows you to translate numeric values into analog signals.

This is a mostly printed 3D Printer very suitable for a hobbyist. It's an easy and cheap way to get into 3D printing.

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

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.

Step by step approach is followed so that any hobbyist or design engineer can have a better understanding of the basic concepts.

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

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

This tester can be used for NiCd, NiMh, and all flavors of Li-Ion rechargeables.

A RFID module connected to two LEDs.

Simple, easy to assemble, programming and use with block structure, Arduino-based soldering station.

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

Bridging the gap between professional and DIY/hobbyist bench power supply.

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

Connect your Arduino via WebUSB with an web application circuit simulator.

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

How hard can you throw a ball In this project, we discover the wonderful world of acceleration.

In this project, you can measure typically up to 48V. It is recommended to use Arduino digital voltmeter as “0-48V DVM”.

An Arduino interface to communicate with devices using the LANC (Control-L) protocol such as many Sony and Canon cameras/camcorders.

I used a Raspberry Pi 2 to make a mini data acquisition system that fits inside of a lunchbox.

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

See how much battery you have left!

A simple self contained Scalar Network Analyzer. It is used for testing and alignment of RF circuits, including amplifiers and filters.

Teach ALL kids the fundamentals of AI and machine learning, through games and hardware and software design.

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