Author Archives: DP

Nomech mini, a 4×4 capacitive touch button grid

Kasbah posted his Nomech mini project, a 4×4 projected capactive touch board using Atmega32u4 and back-fire LEDs for each button in the project log forum: It fits SoB 100x80mm but the top acrylic will sit right on top of the PCB as the dielectric properties of whatever is touching the electrodes matters a lot. If […]

Controlling six 17-segment digits using three I/O pins

Wardy posted this article:  Controlling six 17-segment digits using three I/O pins Decided to start making good use of my “Propeller Professional Development Board” (PPDB) which has been sitting sadly idle and forlorn on the bench for a while. Set a goal of making a simple video game with some of the advanced features available […]

#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 […]

Educational BoosterPack 8 bit FFT spectrum analyzer

SimpleAVR over at the 430h forum shows off his Educational BoosterPack 8 bit FFT Spectrum Analyzer project: SimpleAVR comes up with unique Launchpad projects. These include his  wire clock and spectrum analyzer projects. This time  he wired the CircuitCo Educational BoosterPack to a Launchpad to sample audio and have the LCD display a spectrum. Via […]

Giveaway: NuFithole-kit and mini/micro USB breakouts

Mats has amazed us with his board a week projects, and now one of them could be yours!  Today Mats is giving away four kits of  Nu-Fithole  and  four USB breakouts, you can choose between a Mini- or Micro USB breakout. He’ll give these away to 8 random commenters, just leave a comment on this […]

Cheap frequency counter based on MSP430

SUF posted a cheap frequency counter based on MSP430 in the project log forum. Here is the properties of the project: – Cheap: The component total should be below $5 – Using TI’s MSP430 line of MCUs what I’m learning now – Able to measure till 10MHz – Using LED display – Able to calibrate – […]

Protostack 40 pin AVR development board and ATMega32A development kit

Protostack has announced the release of their two newest products, the 40 pin AVR development board and ATMega32A development kit: The board allows you to build microcontroller circuits using the 40 pin AVR microcontrollers.  It measures 127 x 93.98mm, includes a large breadboard style prototyping area and many power supply options.

Smart audio box

Dilshan Jayakody has written an article about his open hardware project known as Smart Audio Box (SAB): Smart Audio Box (SAB) is microprocessor controlled audio switch and amplifier system, which is specifically design for audio composers and for audio engineers. SAB consist of 4 high impedance stereo inputs and two output modes. One output mode […]

Week in (p)review June 07, 2013

Here’s a summary of major developments over the last week. Free PCB Friday is coming up soon. Bus Pirate LCD Adapter v2b free PCB build DP6037 PTH v1 free PCB build Check out Mats’ Blingtag project, Jaromir’s AVR programmer, Blarson’s BatLev, and Montspy’ LED wristwatch in the project log forum Coming up: Free PCBs via Facebook […]