Kenneth Finnegan writes: This is the hardware build of a new digipeater one of my friends asked me to put together for him. The transceiver is a GM300, with a KAM plus TNC modulating it. If we didn’t happen to have a KAM+ on hand, I would have probably used an OT3m from Argent Data. […]
Tag Archives: build
215 Hopper FPV rebuild
Andrew Taylor documented his 215 Hopper FPV build: I finally have the design of the 215 Hopper at a point where I think it is fit for purpose as an FPV copter. It can now sustain a heavy grounding without terminal damage. I still won’t claim that it is as durable as a carbon plate […]
RF probe
m0xpd writes: Today I finally got round to building a nice little RF probe kit from Rex, w1rex, the Tuna King over at QRPme. I took the well-executed PCB which – unusually for Rex – had through hole mounting for the components rather than the ‘Limerick’ construction that recently I’ve come to associate with him… Following […]
Vintage metal detector
Gary over at TOG-Dublin Hackerspace published a new build, the vintage metal detector project: ETI Electronics, February 1978, IB Metal detector Mk2. This is the first in a series of ‘vintage’ electronics projects that we hope to build at TOG. We have the original magazine, so why not get building. There are some amazing projects […]
Building a Doduino
V-TechDesign published a Doduino build: This project was an exercise in building an Arduino like ATMEGA328P board from scratch using a 3×4 inch Veroboard. The main objective was to provide better build-in I/O capability out of the box, so most projects will not need an I/O shield to perform common tasks. This makes the whole setup […]
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 […]
Why we need a CNC pick-n-place
Chris Holden of Nerd Club has been working on a CNC pick-n-place machine and wrote a post on his blog detailing it’s assembly: Hand-soldering SMT components is slow going. And almost an hour per board section is pretty woeful. So it’s time to start seriously thinking about this CNC pick-n-place machine. Steve is going to go beserk. I […]
DIY laser cutter project
Hans Peter of Embryonic.dk has been working on a Laser cutter project and wrote a detailed explanation on his blog describing the build: Having seen the crazy-fast development of the printers during the time I’ve had mine, I can clearly see that my printer is not the fastest or the most precise in the league anymore. Most of […]
Car computer build
ptodorov over at the EEVblog forum shared his experience building a carputer: For the last 5-6 months everything ran fairly smoothly with a few glitches and bugs. But a few weeks ago all hell broke loose while I was driving. Suddenly left and right blinkers started flashing, the headlights started blinking and doors kept locking and unlocking. […]
DIY in circuit capacitor ESR meter
Here’s a DIY in circuit capacitor ESR meter build by Lawrence: This project was conceived as a way to enhance the collection of test equipment on my test bench. I buy a lot of older HP test gear off ebay as well as older radios. Most of this gear is 25-60 years old and needless […]
Bus Pirate Demo board free PCB build
Andrew Rohne blogged about his free Bus Pirate Demo board build: After building my first PCB a while back and starting to attempt to use it, I decided that the smart thing to do would be to finish build #2, which is a Bus Pirate Demo Board. This demo board has a handful of chips that can […]
Microchip TQFP-100 breakout board PCB build
Samual posted picture of his Microchip TQFP-100 breakout board PCB build in the forum.
SARRRO – Ultrasonic anti-collision robot build
Ultrasonic anti-collision robot by Gavin Hannah: I’ve also coined a name for my project. SARRRO, which stands for Search & Rescue Reconnaissance Rover. I’ve updated the site title to reflect this. From now on, I will be referring to my project as SARRRO rather than just “project” as I have been doing. Via Hacked Gadgets.
BB Prince free kit build
FourthDr built this BB Prince he won in Mats’ giveaway contest. It’s a small multi-purpose utility for your solderless breadboard: Anyone else receive their kit? I’m going to use mine with some minimal Arduino circuits on my bread board along with the crystal module you made. Via the forum.
Autonomous car build
Jason Dorweiler blogged about his autonomous car build: For the localization of the car I’ll be using a GPS sensor and accelerometer. First, the GPS will find the starting coordinates of the car. Then the car will start moving, somewhat blindly at first. Once the car is moving, data from the accelerometer and elapsed time […]
DIY benchtop power supply
Tom blogged about his benchtop power supply using the ATX breakout board he won in the 7400 competition: This time the build was going to be so much easier. I had the great fortune to win an ATX breakout board from Dangerous Prototypes in the 7400 logic competition. Once I had liberated the power supply […]
Part Ninja built on perfboard
JanW built a Part Ninja on perfboard. He used a DIP cased microcontroller and through hole parts. He also replaced the 2.5V voltage reference with the similarly specced LM385-2.5. The connections were made with enamelled copper wire AWG 28. The lacquer is burned off by tinning it with a very hot soldering iron (400 ° […]
Building an adjustable constant current load
Here’s a project log covering the build of an adjustable constant current load. It’s capable of sinking up to 7A, and can withstand input voltages up to 60V. The log covers the design, perfboard assembly, and case assembly. An adjustable power load is a piece of test equipment that often comes handy in the development […]
Infrared Toy Shield free PCB build
Casey O’Donnel shared his free IR Toy Shield PCB build. This board turns your Arduino into the IR Toy. 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. Grab an assembled USB […]
Nokia LCD Backpack free PCB build
Gege2b built a Nokia LCD Backpack free PCB. This board controls common Nokia LCDs like those sold by SparkFun via USB. It was intended to be produced, but problems with LCD supply shot it down. You can still get the populated board from Seeed for $9.50, but it doesn’t include the LCD. If you build […]