alexwhittemore has posted a detailed tutorial how to make an adapter: ST-Link/V2 SWD-JTAG adapter The fantastic STM32 Discovery boards from ST Micro all come with an embedded ST-Link/V2 debugger onboard, including some jumpers to disconnect it from the target device for use as a standalone SWD debugger. Presumably, this is to allow for easy use debugging […]
Author Archives: DP
Experimenting with DirtypCBs
Here’s Microentropie’s new project a VA meter with boards from DirtyPCBs: I tried the Dirty Board PCBs service I chose Express shipping because in my country standard shipping means waiting 1+ months due to ‘standard‘ customs operations. PCBs are currently travelling. Service until now has been very quick: Sunday 10 Aug 2014 9:58: Order received “Yum yum. […]
DIY Delta-3D printer
Vegardpaulsen posted pictures of his DIY Delta-3d printer build: I have had my trusty Makerbot Thing-o-matic 3d printer for over 3 years, and its time to move on to a bigger, better one, as the cost of buing spareparts on the old one gets higher every day. The trouble of repairing the Makerbot all the time vs […]
Arduino GPS map navigation system
Kathy Yang of Elecfreaks writes: Built on the basis of Arduino UNO, GPS, SD card, TFT, GPS map navigation system is to obtain the real-time position information via GPS, to send it to UNO for calculation, according to the calculating results, and teamed up with the map file stored in SD card, thus presenting the […]
ATX Breakout Board V1.1 Acrylic case back in stock
The ATX Breakout Board v1.1 Sick of Beige case is back in stock at Seeed Studio. This case is designed to be simple, cheap, and easy to assemble. The ATX Breakout Board is sandwiched between two laser-cut acrylic sheets, and the whole assembly is held together with aluminum screws and standoffs. This is a minor […]
#FreePCB via Twitter to 2 random RTs
Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week: Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch […]
Vinctronics LCD Shield V1.0
Vincent of Vinctronics writes: This is Vinctronics first ever product – LCD Shield V1.0. Basically, this is a simple shield that provides four important functions: 1. A 2 line by 16 character plug-in ASCII LCD. 2. An active beeper. 3. A DS1307 RTC clock IC with 3V coin cell battery to maintain timekeeping when power is […]
The Hackaday Prize: Two days left to get your rear launched into space!
HackADay’s make open hardware / get your butt launched into space contest has two days left. Get that project posted now! Ian will be one of the Judges, along with Bunnie, Lady Ada, and a bunch of great open hardware hackers: Sure, the procrastinators out there will probably hold out another day (or two), but we […]
OpenHardwareExG: An open source platform for ECG, EEG, EMG, ENG, and EOG signal processing
OpenHardwareExG, An open source platform for ECG, EEG, EMG, ENG, and EOG signal processing: The OpenHardwareExG is a platform for ECG, EEG, EMG, ENG, EOG, and evoked potential applications. The OpenHardwareExG platform was originally developed as part of the eeg-mouse project. Project goals The main goal of the project is to build a device that […]
Eddystone EC10 communication receiver restoration and PSU add-in
Dilshan Jayakody writes: Recently I got vintage Eddystone EC10 MK1 communication receiver from friend of mine and it is completely dead when it comes to me. EC10 MK1 is one of Eddystone’s very early solid state communications receivers and it use 10 PNP Germanium transistors. This receiver cover 550 kHz to 30 MHz and come […]
The dreamers of Shenzhen’s Maker’s revolution
Another great Shenzhen-Geek tour video from Metalworks: Maker Faire Shenzhen Trip. Daylon Soh writes: When the Metalworks team was there in April, we were part of a group of aspiring hardware entrepreneurs and the best offshore online casinos enthusiasts from North America and Europe. Most were looking to bring their hardware product ideas to fruition and were looking […]
Mini MAME cabinet
Greg Kennedy shows you how to make a DIY MAME cabinet project: I started this project by taking stock of my components. Like any good hacker, I have a stack of spare PCs and monitors for occasions like this. I selected a set that was particularly hard to repurpose, due to its crappy CPU, use of […]
Go analog with a resistance-based calculator
tanishqjain340 wrote this instructable detailing the build of his analog calculator project: Do simple calculations with your math box. The next time you need to crunch a couple of numbers, resist the urge to grab a digital calculator. Instead, round up some variable resistors, also known as potentiometers, and wire them into an analog mathematics rig. By twisting […]
App note: Recommended initialization sequence for the MAX3955 and MAX3956 devices
Recommended initialization procedure for MAX3955 and MAX3956 devices from Maxim, app note can be found here: The MAX3955 and MAX3956 devices must be initialized properly to guarantee correct operation. This application note describes the recommended initialization procedure for these devices.
Free PCB Sunday: Pick your PCB
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 […]
App note: Overcoming disorientation – Practical ways to assemble MEMS inertial sensors
An app note from Maxim, Overcoming disorientation: Practical ways to assemble MEMS inertial sensors Component placement and mounting conditions can adversely affect MEMS inertial sensor performance. This application note contains practical considerations for enhancing sensor system operation where the “real-world” environment presents undesirable locomotive signals and system resonances. Topics include placement considerations on the PCB, […]
App note: Tips and tricks to optimize your C code for 8-bit AVR microcontrollers
An application note (PDF!) on code optimization in AVR microcontrollers from Atmel : Features • Atmel® AVR® core and Atmel AVR GCC introduction • Tips and tricks to reduce code size • Tips and tricks to reduce execution time • Examples application AVR core is an advanced RISC architecture tuned for C code. It ensures the development of […]
ytimer: Visual feedback timer
Here’s an update on Aon’s boards from DirtyPCBs we covered earlier, a visual feedback timer project: Here’s what became of one of the boards after a bit of soldering and programming: a countdown timer with visual indication of when the time’s up instead of an alarm (there’s a place for a piezo buzzer on the […]
Free PCB coupon via Facebook to 2 random commenters
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 every week: Free PCB Sunday. The classic. Every week, get […]
Week in (p)review August 15, 2014
Here’s a summary of major developments over the last week. Free PCB Friday is coming up soon. Cheap laser cutter arrives pretty busted up A Haskell interface to the Bus Pirate binary interface Bus Pirate v4 is back in stock at Seeed Studio Check out Doub’s Aperture scripting, herpderp’s waveform generator and Kathy’s DIY shake LED stick in […]