8 Digit serial numerical display shield for Arduino has been designed for various applications like digital clock, stop watch, score display, temperature meter, frequency counter, digital meters etc. The circuit uses popular MAX7219 IC and two common cathode 0.5inch red seven segment...

Henrik Forstén has a nice build log on his newest version of this homemade 6 GHz FMCW radar: Frequency Modulated Continuous Wave (FMCW) radar works by transmitting a chirp which frequency changes linearly with time. This chirp is then radiated with the antenna, reflected from the...

4chord MIDI - the USB MIDI keyboard to play every major hit pop song with four little buttons. by Sven Gregori: 4chord MIDI - the USB MIDI keyboard dedicated to play all the four chord songs, from Adele via Green Day and Red Hot Chilli Peppers to U2 and Weezer. Thanks to MIDI, you can...

Open-Source Miniature Breadboard Friendly ARM Cortex-M4F Dev Board with 1MB Flash, 196kB RAM, 168MHz, floating point and more. 1Bitsy is a debuggable open source STM32F415 development board. Designed for beginners as well as advanced users that want more control over their embedded...

The GnuBee is live on crowdsupply.com. The GnuBee Personal Cloud 2 (GB-PC2) is a network-attached storage (NAS) device specifically engineered to run free, libre, open source software (FLOSS). The GB-PC2 has all the functionality of any commercial, proprietary NAS, but at a much lower...

Arduino Uno home weather station with e-ink display The hardware used for this project is: Waveshare 4.3 e-ink display Arduino Uno Adafruit BME280 combined temperature, humidy and atmospheric pressure DS3231 based hardware clock Arduino Weather Station With E-Ink...

Scientists of Japanese research institute RIKEN and the University of Tokyo have successfully developed a product that allows solar cells to continue to provide solar power after being washed, stretched and compressed. Takao Someya of Riken Center for Emergent Matter Science, a...

melabs.com released a new development board based on PIC18F47K40 PIC microcontroller. The board includes everything you need to start with your project. Documentation here: http://melabs.com/dstick/ The ME Labs Advanced D-Stick provides all the functionality of Microchip’s 40-pin...