TMLM family of 4-20W AC/DC power supply is the right solution on most important requirements – constraint space, high efficiency and cost saving. Every square inch of your PCB costs money. It is a fact, and if you can reduce your PCB´s area, you actually save money. Moreover if...

Maurizio @ dev.emcelettronica.com has tipped us about his latest project. In this article he discuss how to build a simple toaster oven temperature profile controller using StickOS and CPUStick. This is the first part of the article. Using a highly-integrated microcontroller...

simpleiothings.com has build a Wifi connected smoke alarm using ESP8266 module: This tutorial will teach you how to build a Wifi Smoke Alarm Notifier for about $10 dollars. You won’t have to code anything, and you won’t have to solder or buy expensive electronics equipment. Any...

Linear Technology Corporation introduces the LTC7812, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above,...

Frank Donald @ gadgetronicx.com has build a bluetooth controlled door locker using Arduino. Source code included: DIY Arduino based lockers can be found plenty in the internet where keypad was used to feed lock input. But this Bluetooth enabled Door locker uses Bluetooth as a medium...

Alan Parekh @ hackedgadgets.com has a review of a cheap component tested he found on ebay. This device can test bipolar transistors, MOSFET, diodes, thyristors, resistors and capacitors. He writes: This is an inexpensive component tester called the FISH 8840 which you can find from...

arduinomaster @ instructables.com has build an EMF detector based on ATtiny85 mcu able to detect signals from 0-999Hz. He writes: An EMF meter can measure AC electromagnetic fields, which are usually emitted from manmade sources such as electrical wiring, while gaussmeters or...

"jjpfin" @ instructables.com build a Raspberry Pi based temperature and humidity datalogger using DHT22 sensor. Data is stored on mySQL server and can be viewed on browser. This is an Raspberry Pi based temperature and humidity logger that uses 2 (works also with 1) Adafruit DHT22...