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D.I.Y. Continuity Tester

“We have always used the continuity function of a multimeter to find out continuity in PCB,wires,circuit traces,fault detection,etc. When continuity is found the Buzzer inside the meter rings and when there is no continuity it does …

DIY Relay Board

“Relays are always used for AC switching circuits…we frequently need AC loads like Fan Bulbs to operate automatically with conditions like decreased light, increased temperature, etc.Also we come across situations like when we need to control appliances remotely …

facepunch: A facial recognition punch clock

“The concept is rather simple: the picamera takes a photo every 15 seconds, if my face is found, current time is recorded. The logged time then added up to calculate my exact working hours every week. The result is displayed …

Fast-moving electrons create current in organic solar cells

“Researchers at Purdue University have identified the mechanism that allows organic solar cells to create a charge, solving a longstanding puzzle in physics, according to a paper published Friday (Jan. 12) in the journal Science Advances. Organic solar cells are …

From Data to Graph. a Web Jorney With Flask and SQLite

“This Instructable is competing on contest: “Raspberry Pi”. If you like it, please give your vote by clicking at the above banner. Thanks a lot! ;-)On my previous tutorial, Python WebServer With Flask and Raspberry Pi, we learned how to …

Graphene Flexes Its Muscle

“Crumpling reduces rigidity in an otherwise stiff material, making it less prone to catastrophic failure. The Science Gas pressure was applied to a crumpled graphene membrane to cause it to bulge and stiffen. The result? The gas pressure revealed that …

Home-Made 3d Printed Camera Drone

“Skycam is a little robot that travels on a rope or string, can turn corners, and even has a little camera with pan and tilt. The whole thing can be controlled from your phone or any browser and it even …

How to Make a Professional Looking Proximity Sensor

“In this Instructables i will show you how to make a very simple but very professional looking proximity sensor. You can watch the video which is embedded in this step for construction, parts list, circuit diagram & testing or you can …

Improvising an EPROM programmer

“For a project (revitalizing a large 80’s liquid crystal display) I needed to program an EPROM. The EPROm should contain a character font that goes into the LCD so it can show characters. The EPROM required was a 2764 …

Mbed OS 5.7.3 released

“We are pleased to announce the Mbed OS 5.7.3 release is now available. This is the latest patch release based on the feature set introduced by Mbed OS 5.7. Summary We have added support for two new …