A3144

The A3144 is an integrated Hall effect nonlatching sensor. That's nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.

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Automated Perpetual Calendar

“Years ago I came across a wooden perpetual calendar and I loved the idea. After thinking about it for months I decided I wanted to make one myself; however, there was a long list of things I wanted to do …

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 …

ESP8266 POV Fan With Clock and Web Page Text Update

“This is a variable speed, POV (Persistence Of Vision), Fan that intermittently displays the time, and two text messages that can be updated “on the fly.” The POV Fan is also a single page web server that allows you to …

Somatic - Data Glove for the Real World

“The Somatic is a wearable keyboard and mouse that’s comfortable, unobstructive, and ready for all-day wear. It’s loaded with all the hardware to translate hand signs and motions into actions, like the somatic component of a spell in …

MesoTune - Magnetic MIDI Controller

“Are you a music composer, melodist, symphonist or a tunesmith who loves to create their own beats, but got bored with all those push button traditional MIDI Controllers. So, this hardware is for you, as in this instructable we switched …

3D Printed Magnetic Levitation!

“I’m thrilled to unveil my new 3D printed Levitation device! How crazy is that? It’s possible and actually not too difficult to make. I really had a lot of fun with this project and I am so happy …

Arduino Persistance Of vision Clock

“Hi guys. Wellcome back to a new awesome tutorial. POV or persistance of vision refers to the optical illusion that occurs when visual perception of an object does not cease for some time after the rays of light proceeding from …

Motor Management System for Hoisting Application Using Arduino Mega 2560 and IoT

“Now days IoT based microcontroller are widely used in the industrial application. Economically they are used instead of a computer. The objective of the project us to fully digitalized control, data logger and monitoring the 3phase induction motor without using …

Mini WiFi/BLE 4WD robot platform

“A compact & modular WiFi/BLE controlled 4WD robot platform with all required sensors The WiFi capabilities of the new micros as ESP8266 or ESP32 invite to create to build easy to control robots. The aim of this platform is to …