In this article we will review the basic transistor types and their function. We will cover bipolar transistor, Junction FET, MOSFET and UJT transistor types. Feel free to comment with other transistor types you know. Bipolar Transistor Bipolar transistors are three terminal devices...

This reference design is a simple ultrasonic atomizer that helps fight against respiratory diseases. Atomizer is like nebulizer, it is just that nebulizer takes time to deliver liquid to mist. However, both undergo almost the same process. This medical ultrasonic atomizer circuit is...

Pedro Minatel shared us his ESP8266 development board project – nodeLHC: This board was developed at the Campinas Hacker Lab in Brazil during our weekly IoT meetings. This layout and schematic was developed by Leandro Pereira. The idea was to develop a easy to use board and to...

In this video I am uploading a simple blink to two esp8266 development boards. Using Arduino Ide to upload code to ESP8266 -...

USM-MEMS-VOC module evaluates rate of air pollution by contaminants such as cigarette smoke and cooking odors and allows control of air ventilation system on demand. Modul USM-MEMS-VOC is based on the innovative and highly stable TGS 8100 MEMS semiconductor sensor TGS8100 from...

This project automatically switches off the electrical flow in event of excess heating or excess cooling thus protecting the circuit from damage using NXP NCX2220GU. The comparator guarantees to operate at low voltages which makes this device convenient for use in 5 V systems and has...

by Martin Cooke @ elektormagazine.com: The latest MEMs device from STMicroelectronics is said to be the world's most advanced six-axis motion-sensor device designed to support image stabilization in smartphones, tablets and digital still cameras. The LSM6DS3H combines a 3-axis...

by nusnel @ instructables.com: For my monthly maker column in Dutch newspaper "De Volkskrant", I made a coolbox in which you can control the temperature in three separate compartments to keep craft beer at just the right temperature. The contraption I build uses three...