A custom 12V powerbank for Cube i7 Stylus from Muxtronics: Why would anyone even try to build a power bank – i.e. an external battery for charging mobile devices – these days? These things are commodity, it’s impossible to compete. Right? Well, that is until you find out that the type of power bank for your […]
Jan Ostman has a nice build log on his open-source DIY touch synthesizer the Tiny-TS, that is available on Hackster.io: The Tiny TS is a credit card sized (100x65mm) fully open-sourced synthesizer with a 1-octave capacitive touch keyboard. Check out the video after the break.
A geeky Christmas decoration made with 56 LED Neopixel and controlled via an Arduino Micro board from Open Electronics: Let’s take a look, therefore, at the project’s electrical section, that is essentially composed of a set of 56 Neopixel LEDs, that have been arranged so to form two concentric stars; the first 35 RGB LEDs (out […]
Boris Landoni from Open Electronics writes about the BF 15+15W open source power amp: The amplifier revolves around a monolithic integrated circuit for universal use, that is composed of two BF amplifier stages having a bridge output, that may be equated to operational amplifiers connected by a bridge and supplied with a low impedance output […]
Microsoft is announcing PowerShell on Linux and open source, that is available on GitHub: Today, we are taking the next step in our journey. I am extremely excited to share that PowerShell is open sourced and available on Linux. (For those of you who need a refresher, PowerShell is a task-based command-line shell and scripting […]
Open source hardware digital signal processing platform from Paul Janicki: The open hardware DSP platform is a range of small boards that can be plugged together to give you a flexible platform for processing all sorts of audio signals. If you want a simple crossover, a custom USB soundcard and headphone amp, or a fully fledged […]
Boris Landoni from Open Electronics writes about a new open source 3D Scanner made with Raspberry Pi: This being said, we may move on to talk about our 3D scan approach, that consists in using a linear laser, that is, one capable of drawing a vertical line having a constant luminous intensity, and in shooting the images that […]
Tom Keddie posted a video showing his OpenPnP pick and place build.
Dan Watson documented on his blog an open source Arduino-compatible Cherry MX keypad he designed using the ATmega32U4 microcontroller: The board that I designed includes four Cherry MX keys. I used MX Blues, but it is also compatible with other types such as Brown and Red. It’s simply a matter of soldering on the ones […]
David Spinden writes, “Wanted to pass along an open source hardware circuit board tool that allows a person that has a circuit board that has vias for .1 inch headers, but has no headers to prototype for their idea. Using a spring contact, the ViaConnect attaches directly to the via. It is great for students […]
Dan Watson documented on his blog an OCXO upgrade board he designed for the Fluke/Philips PM66xx line of frequency counters: My counter came with the standard XO timebase option, which has fairly poor specs for stability and drift. It is difficult to trim precisely with the single-turn trimmer capacitor on the board. For most testing […]
Dilshan Jayakody documented his USB port base NPN transistor curve tracer project: Curve tracer is an electronic test instrument to analyze the characteristics of transistors and other discrete semiconductors. In this post we construct USB base curve tracer to analyze properties of NPN transistors. This curve tracer is build around Microchip’s PIC18F4550 MCU and it use […]
Peter van der Walt from OpenHardware.co.za has published his newest machine design – an open source pick and place machine, that is available at github. Project info at OpenHardware.co.za.
Ethan Zonca from Protofusion writes, “After making the switch from AVR to STM32 microcontrollers, I redesigned my old 6-pin ICSP pogo-programming adapter for SWD. The new design allows programming with pogo pins or a small pin header soldered to the pogo pads for debugging, all with the same cable. The footprint uses surface mount pads […]
Tom Whitwell from Music Thing Modular built a DIY control board for Axoloti, that is available on Github: Axoloti is a very nice €65 audio board from Belgium, the closest thing I’ve yet seen to an Audio Arduino; lots of easy analog ins and outs for pots and switches, enough power to do interesting audio, […]
An open source digital microfludics platform from GaudiLabs, that is available on github: OpenDrop is a new design for an open source digital microfludics platform for research purposes. The device uses recent electro-wetting technology to control small droplets of liquids. Potential applications are lab on a chip devices for automating processes of digital biology. How […]
The Energia team announces the availability of version 0101E0017. We wrote about it previously: A new version of Energia has been released. This version fixes alot of bugs from the previous version and also adds support for the following: Support for three new boards have been added added: – CC2650 based SensorTag (MT) – CC3200 based […]
Cemetechian MateoConLechuga and his team Jacobly, Adriweb, Lionel Debroux, Vogtinator have been working on a portable and open source TI-84 Plus CE/TI-83 Premium CE emulator – CEmu , that is available on Github: Features Portable emulation core written in C Decent emulation accuracy yielding the ability to boot all of TI’s CE OS’s, browse around, execute […]
Alper Yazar has posted an update on his open source isoUSBRS422 project we covered previously: As I said, basically it is an USB ↔ RS-422/RS-485 converter board. It can be used to communicate devices with RS-422/RS-485 interface by using a USB port of PC. Also, ground of USB port is isolated from ground of RS-422/RS-485 […]
Ken Boak has been working on an open source micro-solar inverter project: We wanted to make a design that uses readily obtainable N-type FETS and an Arduino (more strictly a ATmega328P-PU on a breadboard) to generate the PWM signals and provide simple circuit protection, and load sensing. With the PWM signals generated in firmware it can easily […]