Boris Landoni writes about an open source project frequency meter and clock generator: On the hardware of the controller board LED Matrix, by taking advantage of the reconfigurability of the onboard FPGA, we can build a bivalent tool that is extremely useful to have on our work bench. Via Open Electronics.
An open source small DC/DC 3W switcher to drop 5V to 3V in a 7805 TO-220 pinout from Black Mesa Labs: This post is an open source hardware design from Black Mesa Labs for a simple DC/DC converter for dropping 5V to 3.3V ( or adjustable to lower voltages via resistor selections ). The design […]
An open source 22mm diameter PCB project from Concretedog, that is available on github: So I posted a while back about how I had used these 22mm pcb’s I’d made in prototyping an ematch ignitor system for use in rocketry. Although I made these stackable boards so they would fit inside a popular size of […]
Angus Ainslie writes about an open source project a CHIP Pro TNC: So I finally have a design of the TNC I’ve been working on that I think is ready for release. Initially this started with me wanting a replacement for my mobilinkd and AP510. With feature creep it has turned into much more. The […]
Here are two open-source-hardware HDMI video boards for adding digital video to FPGA platforms with standard PMOD connectors from Black Mesa Labs: The BML 3bit HDMI over single-PMOD uses 7 of 8 available LVCMOS 3.3 pins on a single PMOD to provide 3bit color ( R,G,B 100% On or Off ). Example Verilog design drives 800×600 […]
Boris Landoni writes about a new open source rain and humidity sensor project: It detects humidity through two sensors which are to be used alternatively to let us know when there is water on the ground because it’s raining, or when the water level in a flowerpot is too low and it needs watering. See the […]
Matthew Reed writes: ProtoModule is a HydroBot module designed to easily develop and test new monitoring or control functions that may someday go into a HydroBot module. It has 11 GPIO pins and the power rails broken out on a 0.1” pin header for easy breadboarding or interfacing with ribbon cables. The provided pins give […]
Boris Landoni writes about a new open source project 2-channel receiver that can save your old Motorola TX: A 433,92 MHz Receiver that can be paired with a maximum of 10 Motorola TX each with relay outputs that can be set both in monostable or bistable mode. Although we have had high security encoding for several […]
Boris Landoni writes about a new open source project a DC motor controller with control LEDs: It can be controlled through logic levels to set the speed and the direction of the rotation of CC brushed motors and stepper motors; outputs have LEDs indicating the rotation direction. The circuit board we are presenting this time is […]
Boris Landoni from Open Electronics writes about an open source project laser reflection barrier: It allows us to detect the presence and passage of an object thanks to the combination of a laser diode which emits a light ray and a phototransistor which detects reflected light. Robotics applications and industrial control systems normally make use of optical […]
Boris Landoni writes about an open source sprinkler system powered by Yún: A control unit for the garden sprinkler that can be controlled via web and smartphone thanks to Arduino Yún. With summer approaching, our plants and our gardens need some regular watering in order to stay lush and green as we like them. It’s […]
Boris Landoni from Open Electronics writes about a new open source Demoboard MP3 audio player DFR0299: Let’s test out the capabilities of the DFR0299 audio player module, an ideal choice for Arduino but also for many stand-alone applications. In this article, we decided to design and propose a demoboard for the DFR0299 module we already […]
An Arduino Nano-based open source data logger by Liudr. I have been designing data logger for a number of years. This is my answer to lots of data logging needs. An Arduino Nano-based open source data logger More details at Liudr’s blog.
Here’s an interesting open source project on Kickstarter the world’s first robot arm kit for the Raspberry Pi, the MeArm Pi: We believe in helping people understand how the world works. With so much development going on in robotics at the moment, now is the perfect time to get to know what it takes to build […]
Boris Landoni from Open Electronics writes: In this post you will find the description of a graphic display that uses a modular solution based on dot matrix blocks (in which each dot is a RGB LED), that are driven – via a specific bus – by a very powerful control board, that is entirely programmable […]
Boris Landoni from Open Electronics writes about a new open source Rain Sensor and controller: Designed to be coupled to an irrigation controller, a weather station or motorized curtains and rolling shutters, it shuts down a relay when rain is detected. Full details at Open Electronics project page.
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 […]