Open source RISC – Eclipse with RISC-V on the SiFive HiFive1 board

Erich Styger writes: Open Source software has been around for decades. But open source on hardware especially microcontroller is not much a reality these days. But there is something which might change this: RISC-V is a free and open RISC instruction set architecture and for me it has the potential to replace some of the […]

Energy Meter module to analyze the electrical grid parameters and consumption

Boris Landoni from Open Electronics writes about a new open source energy meter project: In the first installment, you had the opportunity of learning about our energy meter, and of learning about its details, with special attention the technical ones. Our energy meter is based on the coupling – by means of two measuring transformers – […]

Open source Agilent 53132A 53131A OCXO ultra high stability oven upgrade

Gaurav Singh made an open source 53132A OCXO Ultra stability time base, that is available on github: While i was working with my own GPSDO project. i need to have a frequency counter with descent stability so purchased my self a Agilent 53132A which is a 12 digit frequency counter, big brother to 53131A 10 […]

CANable: the open source USB to CAN adapter

An open-source USB to CAN adapter: It supports CAN bit-rates of up to 1 Mbit/s. The product comes with an open-source SocketCAN driver software. It features a Micro-USB connector and a 4-pin screw terminal with CAN_H, CAN_L, 5-V supply, and ground. The CANable device is a hardware clone of Eric Evenchick’s CANtact project, an open-source […]

Traktorino, an open source DIY MIDI controller

Here’s an Arduino based open source MIDI controller by Musico Nerd, the Traktorino: The Traktorino is a powerful low-cost DIY MIDI Controller. It is based in the Arduino platform and it comes in DIY kit, or assembled. In its core, there’s a shield that connects to an Arduino Uno, which uses open-source code, making it […]

An open source frequency meter and clock generator

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.

DC/DC switcher for 5v TO 3v at 750mA in a TO-220 7805 footprint

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 […]

BML HDMI video for FPGAs over PMOD

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 […]

8-bit assembler compiler project

Dilshan Jayakody writes, “8-bit Assembler compiler is NASM compatible assembler compiler to generate binaries for 8-bit x86 like CPUs. The binaries produced with this compiler can execute on Marco Schweighauser’s 8-bit virtual Javascript CPU. This native compiler can build using Lazarus / FPC. During the implementation we build and test this compiler successfully on Linux […]

A 2-channel receiver that can save your old Motorola TX

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 […]

A DC motor controller with control LEDs

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 […]

Build an open source laser reflection barrier

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 […]