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Isolated Full-Duplex RS-485 Transceivers

“This module is an isolated full-duplex differential line driver and receiver for TIA/EIA RS485/RS422 applications. The module is ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range …

Lazy Grid Clock V2

“Lazy Grid Clock v2 Welcome to LGCv2, a 7x11 led matrix using a single LED strip. The idea behind this thing was to avoid soldering multiple led strips like in a classic matrix. For this to work there’s 6 …

LED Sculpture: Let’s Build an LED Man!

“The words LED and sculpture seem oddly placed together, dont they. Well, what if you could learn about basic electronic elements, and at the same time, channel your inner creativity by making sculptures? Paper Crane Lab teaches you how to …

Light-Up PCB Necklace V2

“If you like making jewelry and have some experience using the Bantam Tools Desktop PCB Milling Machine, this is a great project for you! It offers a wonderful way to get creative and artistic with double-sided machining. The necklace has …

Measure Mains Frequency Using Arduino

“On 3rd April, Prime Minister of India, Shri. Narendra Modi had appealed to Indians to turn off their lights and light a lamp (Diya) at 9:00 pm on 5th April to mark India’s fight against Corona Virus. Just …

Mesmerizing Magnetic Wall Clock

“Mechanical clocks have always fascinated me. The way all of the internal gears, springs, and escapements work together to result in a constant reliable timepiece has always seemed out of reach for my limited skill set. Thankfully modern electronics and …

NerfOrNothing

“A smart foam football that tracks your throws My team and I cut a Nerf football in half, stuck a WiFi-enabled microcontroller and some accelerometers inside, and wrote some inertial-navigation code to track throw distance and spin rate. This was …

Non Contact AC Voltage Detector Circuit Diagram

“AC Voltage Identifier Circuit is a primary circuit based totally NPN transistors like BC747, BC548. The circuit is dependent on 3 distinct stages. After that, the frail sign was given solid and This circuit can run the Drove just as …

Open Source Pulse Oximeter for COVID-19

“An easily constructed USB-powered pulse oximeter device that can be built for around $25 and features an OLED display. COVID-19 is a disease caused by the SARS-CoV-2 virus that primarily attacks a person’s respiratory system. Some …

Planetary Gear Clock

“(Old) mechanical clockworks are incredibly interesting and pleasing to watch, but are unfortunately almost impossible to build yourself. Mechanical clocks also lack the carelessness of the precise digital technology available today. This Instructable shows you a way to combine the …