Use a transistor as a heating element
Miscellaneous

Use a transistor as a heating element

REC Johnson, B Lora Narayana, and Devender Sundi share their design idea on how to use a transistor as a heating element. It is common to use transistors for driving resistive heating elements. However, you can use the heat that a power transistor dissipates to advantage in several...

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Exploring Eagle CAD ULPs #3 – Teardrops.ULP Make A Teardrop Shape Connection With Pads and Vias
PCBSoftware

Exploring Eagle CAD ULPs #3 – Teardrops.ULP Make A Teardrop Shape Connection With Pads and Vias

Welcome to the third post of the “Exploring Eagle CAD ULPs” series. Every week we will publish a new post about one useful ULP in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C­-like syntax and can be used to access the EAGLE data...

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Chip-scale atomic clocks bring accuracy and stability to portable applications
Timer

Chip-scale atomic clocks bring accuracy and stability to portable applications

Microsemi released a chip scale atomic clock reference bringing stability and accuracy to portable devices. The Microsemi Quantum™ SA.45s CSAC is the world's first commercially available chip scale atomic clock, providing the accuracy and stability of atomic clock technology while...

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WaRP7 – A New Platform For IOT And Wearable Technology Applications
IoTMcu

WaRP7 – A New Platform For IOT And Wearable Technology Applications

“WaRP7” is a new platform which increases developer’s opportunity to innovate and bring new products to the market by smoothing and speed up the development process of IoT applications and wearable technologies. WaRP7 is a $85 platform designed by “Farnell element14”. It...

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ESP8266 Wifi enabled 8×64 pixel LED matrix display
Mcu

ESP8266 Wifi enabled 8×64 pixel LED matrix display

Raj @ embedded-lab.com build an ESP8266 based led matrix display. This matrix is a modification of his previous bluetooth version and uses an ESP8266 as a web server to setup the display message. No other microcontroller is used to control the display so things are kept simple and...

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A very simple DIY solar-powered USB charger
Photovoltaic

A very simple DIY solar-powered USB charger

Raj @ embedded-lab.com tipped us with his latest project. It's a simple, but useful USB Solar powered charger able to charge a power bank or your smartphone. Yesterday, I built a very simple DIY solar-powered USB charger for my TP-link 10400mAh USB Power Bank. All I needed was a...

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Air pressure sensors in smartphones
Sensor

Air pressure sensors in smartphones

Dr. Thomas Block has a great article about air pressure measurement on smartphones and which benefits this may have. Today’s smartphones utilize a wide array of accelerometers, gyroscopes and various other sensors in their designs. Relatively unknown is the barometric pressure...

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Basic Electronics – How to use a 555 Timer
Basic ElectronicsYoutube

Basic Electronics – How to use a 555 Timer

Do you want to know how to use a 555 timer? Laura brings you more Back to School tips and tricks on using this integrated circuit. Basic Electronics - How to use a 555 Timer -...

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