Small soldering station for Weller RT tips. Arduino Leonardo compatible for easy firmware upgrades and extensions over USB. The UI consists of a small OLED display and a rotary encoder.

VGA & audio interface for Raspberry Pi Zéro & 2,3,B+

Softwareupdate for 170112

All that’s required to measure radiation is a simple PIN photodiode and a suitable preamplifier circuit. We present here an optimised preamplifier and a microcontroller-based counter. The microcontroller takes care of measuring time and pulse rate, displaying the result in counts per minute.

This shield is based on the extremely popular SDR-project published in the May 2007 issue of Elektor Electronics. The original author Burkhard Kainka also made this new design, now as a shield for an Arduino Uno (-based) microcontroller board. The antenna preselector section was omitted and the CY27EE16 programmable oscillator replaced by a SI5351 from Silicon Labs.

Shows time and date and even plays a simple pinball game on your computer or mobile device via WiFi!

Who realizes this little project gets a device with the following functions:• Displaying the current refrigerator temperature• Monitoring the refrigerator temperature with alarm function• Opening time monitoring with alarm function• Programmable maximum allowed temperature and opening time

Nothing can be compared when you can put your hard work to display on a 4” TFT display- From one end to the other end it's 480*360 pixel to play with.

Once you understand VS1053 codec processor , with just 15 lines of code you can build up your Internet radio running on your WIFI internet connection.

I have an old window AC at my lab, situated at the terrace. The AC needs to be run intermittently more so often when I’m out of station & the lab..

Buy it here!A propeller clock, also known as a Persistance Of Vision (POV) display is based on a mechanically moving led row. This led row is either oscillating or rotating at a rate superior to human's eye remanence, making a dot matrix which seems to float in the air.

Students are killers! After the painful death op three raspis I decided to design a short circuit resistant buffer board. A little googling pointed to this page from brian dorey. The mentioned TXS0108E sounded interesting and the design was straightforward.

Dear visitor,There are basicly 2 way's to explore RGBDigit.One; For a quick RGBDigit impression view the interview with Clemens Valens Technical Manager Elektor Magazine. https://www.youtube.com/watch?v=3Wk6n51X8Jg

A Platino-based Transistor Tester to test transistors in a simple and portable way. Since it is tedious to read the markings on the transistor devices and to look up to its characteristics in datasheets, a handy transistor tester makes its way in such scenarioes.

Switch up to 9 loads by a simple button press or by sending a command over the serial port. 2500 W mar per channel, NO & NC contacts.

Thi article is a brief tutorial on how to integrate a development IoT board with WPA / WPA2 Enterprise networks.

Christmas was nice for the kids. Unfortunately, these toys need endless batteries. I replace them with 2 lithium phone battery with charger

This is a port of the Soulsby Atmegatron 8-bit monophonic synthesizer to the Elektor J2B LPC1343 ARM Cortex-M3 board. The Atmegatron is quite a nice design with everything you need fitting in 32KB of flash memory.

The 6-digit VFD clock is built around 6 Russian IV-22 VFD tubes and looks very familiar to the popular 6-digit Nixie Clock.

The article highlights the way in which I created control over irrigation over the internet, which works by time and weather.

The article is a tutorial on how to control 16 relay through Arduino microcontroller with Ethernet shield W5100.