Main Content

Automatic keyboard switch tester

“I’m working on designing an open source 3D-printable keyboard switch at the moment, with a view to eventually making my own mechanical keyboard using minimal off-the-shelf components (just an Arduino, wire, and diodes, with homemade parts for switches, keycaps …

Project  AutoSteri

AutoSteri

“AutoSteri is a small and compact automatic UV sterilization system that uses a PIR to detect a human and cleans when they leave. The system uses a PIR sensor to detect the presence of a person and then after it …

Barcode Scanner for Bring! Shopping List

“This project aims to create a gadget that reads the 2D barcodes of the products I want to add to my shopping list. (Bring! Shopping List App). The gadget is built with an M5StickC + a 2D barcode reader with a …

Borrowing from robotics, scientists automate mapping of quantum systems

“Understanding hardware errors helps stabilise quantum tech PhD candidate Riddhi Gupta has taken an algorithm used in autonomous vehicles and adapted it to help characterise and stabilise quantum technology. Scientists at the University of Sydney have adapted techniques from autonomous …

Building a Chaotic Oscillator from Common Components

“A chaotic oscillator is an electronic circuit that can exhibit “chaotic“, nonperiodic behavior. A commonly cited example is Chua’s circuit, but there are many others. I always regarded these as carefully designed, rather academic, examples. So I was a …

CERN trials graphene for magnetic measurements

“First isolated in 2004 by physicists at the University of Manchester using pieces of sticky tape and a graphite block, the one-atom-thick carbon allotrope graphene has been touted as a wonder material on account of its exceptional electrical, thermal and …

Design allows computer engineers to mix systems to boost performance

“Computers are renowned for flexibility, running everything from game consoles to stock exchanges. But at the level of computation, most computers rely on arrays of identical processors called cores. Now, a team at Princeton University has built a hardware platform …

DIY FFT Audio Spectrum Analyzer

“FFT spectrum analyzer is a test equipment that uses Fourier analysis and digital signal processing techniques to provide spectrum analysis. FFT spectrum analyzer is a test equipment that uses Fourier analysis and digital signal processing techniques to provide spectrum analysis …

DIY PCB Shaker (Low-Cost)

“Tired of spending half an hour shaking a vat of Ferric Chloride? Build your own DIY Low-Cost PCB Shaker! It’s a very cheap and simple project that only requires common materials. The machine can reduce etching time of Ferric …

DIY Photographic Lightmeter

“This Instructable shares some ideas on building a simple small and cheap incident lightmeter. The goal for me was a light-meter to accompany my Bronica ETRSi medium format film camera. Things i wanted it to feature: single ASA (100) because …