Here is a mod to add ground to unused Logic Sniffer probes, like the one built by Tarloth. He grounded the top row of a dual-row female header, and soldered the bottom row to his Open Bench Logic Sniffer. This allowed him to both improve signal integrity, and be able to mate his OBLS with […]
A beta release of Jawi’s Logic Sniffer client version 0.95 is now available. It has these updates: Client now also runs on Java 7, but remains backward compatible with Java 6; Fixed issues #79, #77, #76, #75, #74, #70 and #40; Use PureJavacomm as experimental serial library instead of RXTX; Major cleanups in Tool/Device API […]
Here is a project that allows you to keep track of your household power consumption over a wireless connection. Jone’s energy monitor project counts electricity meter‘s indicator pulses, which the electrical distribution company uses to bill you. Once it reads 5 minutes worth of consumption data, it is broadcast to a web server over a […]
Raj made a few breadboard modules to speed up prototyping. We think it’s a great idea to have a power supply, few switches, LEDs, etc, broken out into modules. It will save you a ton of time, and space on your breadboard. Breadboards are a great tool for prototyping and testing electronics circuits. However, if […]
Marius tipped us to a new generation of tactile surfaces with relief effects: Swiss researchers have invented a new generation of tactile surfaces with relief effects – users can feel actual raised keys under their fingers. This technology could have many applications, particularly in improving access to electronic media for the visually impaired. Via the […]
The rfPIC12F675F is a microcontroller with a built in UHF transmitter operating at frequencies between 380Mhz and 450Mhz. It’s basically a PIC12F675 microcontroller strapped onto a UHF transmitter, even the top 8 pins of the rfPIC12F package are pin comparable with the 8pin PIC12F device. This reference design outlines a wireless tire pressure monitoring system […]
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week two random commenters will […]
This buck converter design uses the LinkSwitch-TN IC to output DC directly from rectified mains outlet. It converts mains high voltage to smaller DC voltages suitable for electronics devices, and has the ability to output up to 360mA of current. It’s based on the standard buck topology, except that the IC tolerates and works at […]
Microman171 built a free ENC424J600 ethernet breakout board. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Via the contact form.
Modern RC model aircraft designs incorporate some hefty standards regarding motor speed control: The motor should not be started until the speed is at its lowest setting Motors with gearboxes should have acceleration limits If the control signal is lost the motor should shut off Motor shut off in case of low battery, to save […]
Here’s a summary of major developments over the last week: Bus Pirate demoboard v5a update changelog Bus Pirate PIC programmer can now program Bus Pirate v4 Basic RF sniffing with the Bus Pirate Soldering the Bus Pirate demo board v5 Vincent wrote a guide to compiling the open source cross platform GUI for the Bus […]
It’s always a good idea to review your PCB gerber files before committing them to the PCB fabrication house. We use ViewPlot to check our PCBs, what software to you use and what are the common errors you look for? Leave your comments here, or join the discussion in the forum. We review the gebers […]
Luca made a tutorial on how to read data from an Arduino, and upload it to Pachube. Pachube is a site that allows you to upload, share, and plot real-time data from sensors. Via the contact form.
Arhi tipped us about this amazing DIY high resolution 3D printer. It uses a projector to cure resin and, layer by layer, develop a 3D object. The developer wants to produce it as a low-cost, high-resolution 3D printer: I have been dreaming about having a 3D Printer at home for many years, but the ones […]
As a follow up to his RS-485 temperature sensor board, Ezflyer added PCB and schematic files: I’ve been meaning to post the Eagle schematic and board files for this project for a while now, but never got around to it. An email from a forum member (thanks Karel!) interested in this project prompted me to […]
Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. More PCBs via Twitter on Tuesday and the blog every Sunday. Don’t forget there’s free PCBs three times a every week: Free PCB Sunday. The classic. Every week, […]
Today we announce the winners of the Energy Micro EFM32 dev-boards. There were lots of great ideas, thanks for your submissions. Congratulations to David, his idea for a subsurface stream water level monitoring and logging system scored him the EFM32 Gecko development kit: Subsurface stream water level monitoring and logging system. (Ecologically friendly hydrological data collection) Particularly […]
Bus Pirate PIC programming utility can now program Bus Pirate v4. This means any Bus Pirate v2, v3, or v4 can program any other Bus Pirate version as well. Thank you to Tayken, Robots, and LongHairedHacker for their work on this project. Note: the PIC programming adapter is not needed to program a Bus Pirate. […]
We made a few updates to the Bus Pirate demoboard v5 since the soldering video we posted yesterday. In version 5a we added: A 3.3V pin to the ADC_IN header, to easily connect the AIN pin to 3.3V with a jumper. A Diode D1 to separate the high programing voltage from the rest of the […]
Brian updated his MSPism RF transceiver design to version 2. He added a dual output low-drop-out voltage regulator and a LiIon battery jack. MSPism is a X-Bee compatible RF transceiver with an onboard MSP430 microcontroller, using a cheap Nordic nRF24L01+ module. The firmware is currently under development. Via the forum.