Ricros posted his free NXP ARM Cortex M0/M3 LQFP-48 Breakout board PCB build: A long time ago I’ve received a NXP ARM Cortex M0/M3 breakout board free pcb and I got a Open Bench Logic Sniffer out of a swag bag, I only had time to solder the free pcb last week. The MCU is a LPC1313, the […]
Category Archives: builds
Bus Pirate v3.8 free PCB build
Markus Gritsch posted picture of his free Bus Pirate v3.8 PCB build. 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.
Bus Pirate v3.8 free PCB build
j/k built a free Bus Pirate v3.8 PCB. 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.
N1KSN Iambic Keyer free PCB build
Marcello posted picture of his free Iambic Keyer PCB build, a guest PCB from Andy Palm/N1KSN 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.
Free PCB build – PICkit3 clone on QFP prototyping board
Hlipka writes: I got the 0.8+0.5mm xQFP protoboard from the Free PCB drawer. Since I wanted to get a PICkit3 for a while, this looked like a perfect fit. So I looked up the schematics, ordered what I needed, and started work. It took longer than expected, and in the end I had just one […]
Variable RF signal sampler
Brian Dorey posted an article describing how he built his variable RF signal sampler: It isn’t safe to connect the output of a radio directly into a frequency counter or oscilloscope due to the high voltages and currents on the transmitter and so we needed a way to sample part of the transmitted signal while dumping the […]
Building a CPLD based logic analyzer
Alex from InsideGadgets has been working on a Building a CPLD Based Logic Analyser. In Part I of his post he details his build of a logic analyzer which saves the sample to external SRAM. For this project Alex used the Altera MAXII EPM240 development board with an on board 20MHz oscillator. The coding was […]
555 as a push-pull level shifter
psmay writes: Wanting to prototype something with an oddball push-pull 3.3V-to-13V switch led me to concoct an experiment using only stuff available at a reasonably well-stocked Radio Shack[3], with particular attention to ICs that provide push-pull outputs. So far I’ve tried configurations based on the original 555 timer[4] and the TL082 op amp. My first […]
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 […]
XT-IDE Adapter free PCB build
twinpeaks built a free XT-IDE Adapter v1b PCB: I just finished the build of a free XT-IDE (v1b) adapter. I want to use it to replace the broken XT (8-bit) disk of an old Schneider Euro XT computer with an ordinary IDE disk. XT harddisks are impossible to get nowadays. Thanks for the free PCB! :-) If […]
xQFP80 +50 Protoboard free PCB build
mikelelere built a free xQFP80 +50 Protoboard v1 PCB: Last week I received a xQFP80 protoboard from the free PCB drawer, which I have used to build a CPLD development board. It features a Xilinx XC2C64A with selectable I/O levels for each bank (3.3v, 2.5v and 1.8v) via jumpers and a PIC18F24J50 to enable USB functionality. […]
xQFP80 +50 Protoboard free PCB build
TomKeddie posted his xQFP80 +50 Protoboard free PCB build: Am running learn to SMD solder workshops at our local hackspace. SMD October uses the qfp surface mount protoboard to build a basic leonardo using the adafruit 32u4 schematic Schematic is from Adafruit at raw.github.com/ I used my free pcb build to build the master for the class. […]
Fan Controller free PCB build
Sandman333 built a free Fan Controller PCB. 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.
USB LCD Backpack PIC18F24J50 free PCB build
TasksOfOhm built a free USB LCD backpack PCB. This board controls LCDs with up to 16 interface pins at 3.3 volts or 5.0 volts. This includes common HD44780 character LCDs and larger graphical LCDs. Got it working. It wasn’t an electrical problem but a software one. I used the software from another built that was running the PIC with […]
The Arduino as a simple JTAG adapter
pesco blogged about his free XC95144XL CPLD breakout board PCB build: A good while ago I won one of the free PCBs regularly given away by DIY hardware shop Dangerous Prototypes. My board of choice was a CPLD breakout board, for the Xilinx XC9572XL. CPLDs are the smaller brother of FPGAs: programmable logic chips that can be […]
Minimal MSP430G2553 free guest PCB build
ejbs70 posted pictures of his free Minimal MSP430G2553 PCB build, a guest PCB from Boseji. 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.
Arduino video overlay shield free guest PCB build
Rubi blogged about his free LowVoltageLabs’ Video Overlay Shield PCB build: In 2011 I won a free pcb from Dangerous Prototypes, a Arduino shield you can use to overlay and display data on a video stream. The Arduino Video Overlay Shield is based on the MAX7456 on screen display chip. The Arduino compatible shield board overlays text […]
XT-IDE Adapter free PCB build
Mobilewill blogged about his free XT-IDE Adapter v1b PCB build: A few months ago I redeemed my free PCB coupon for the XT IDE Controller. It took some time to get the PCB and to order all of the needed parts, but finally everything was ready for assembly. I have to say this project was anything […]
Ken Gracey Quadcopter Build
Ken Gracey Quadcopter build: Ken Gracey, the President of Parallax is building a huge quadcopter. In the picture above it might not look that big but when you realize that the propellers are 14 inches that might put things into perspective! There are 2 X 4 amp hour 18 volt batteries feeding the 770 KV […]
Bus Pirate v3.5a-SOIC DIY edition free PCB build
Sleepwalker3 posted pictures of his free Bus Pirate v3.5a SOIC DIY edition PCB build. These boards were designed with the larger SOIC PIC microcontrollers, making them easier to solder for beginners. Get an assembled Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors. Via the forum.