Paoson Woodwork @ instructables.com has build an Arduino Based Distance meter using SR-04 Ultrasonic sensors and an LCD display: This a project I've been working for some time now. It is a device that shows in a little LCD display the distance to the nearest object it can find,...

by Denis Meyer @ elektormagazine.com writes about the new Samsung bio-processor: Samsung Electronics Co. announced recently the production in quantity of their versatile biometric IC with which the Korean giant is responding to the new trend towards quantifiable health. The...

FlexEnable, the leader in the development and industrialisation of flexible organic electronics, and ISORG, the pioneer in organic photodetectors and large area image sensors in printed electronics, have revealed the world’s first large area flexible fingerprint sensor on plastic...

Brian Dorey has designed a mains energy monitor based on ESP8266 that have sensors for the mains current, electric meter and gas meter. As the new solar logger did not have this functionality we decided to design a new data-logger that would measure not only the mains current usage...

Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED...

ChameleonMini is a programmable tool for NFC Cards analysis and emulation. It helps you to emulate and clone contactless cards, read RFID tags and sniff RF data. The credit-card shaped ChameleonMini is a versatile tool for practical NFC and RFID security analysis, compliance and...

Visuino is the latest software developed by Mitov Software which allows you to program your Arduino boards using a graphical interface. So far only the official boards are supported but more will come. Using Visuino you can easily create complex programs using drag and drop interface...

Joonas Pihlajamaa wanted to connect his keyboard to his Macbook and for that reason he build a MIDI to USB interface using Teensy board, an optocoupler and some resistors. Thankfully, I had a MIDI connector and a high-speed optocoupler at hand, and with these I could implement a MIDI...