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Archive for December, 2011

Logic Sniffer: Vote for signal display annotation style

Thursday, December 29th, 2011

Jawi is developing a new version of the Logic Sniffer client app. He's currently deciding on which style to use for annotation. Help him out by casting your vote in the forum. The OLS client supports the annotating of data to present additional information along with the signal data. For...

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Posted in logic analyzer | 2 Comments »

Breakout board for 18pin PIC16F microcontrollers

Wednesday, December 28th, 2011

Raj made a breakout board for 18pin PIC16F microcontrollers. There are two tact switches on the board: one for reset and other for user input. Similarly, there are two LEDs: one for power-on indicator and the other for user output. The input tact switch and the output LED can be...

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Posted in dev boards | No Comments »

Light programming using Manchester encoding

Wednesday, December 28th, 2011

Mike has been working on a light programmer that uses Manchester encoding. A light programer uses a computer monitor to send data to microcontroller project. We blogged about similar systems earlier. I wrote a JavaScript application that you can load into your web browser. It takes a message, converts it...

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Posted in programmers | No Comments »

Christmas LED card built and shared

Wednesday, December 28th, 2011

Drew picked up our old blinking Xmas card project. He got the PCBs just in time to complete the project before Xmas. I finally assembled a couple and am off to give them to my parents and grandparents at Christmas Eve We're glad our project brought some joy during the...

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Posted in DIY | 1 Comment »

Spy Video Trakr hacks

Wednesday, December 28th, 2011

Krash writes to update us on his series of Spy Video Trakr hacks on Instructables. The short video above demonstrates his hack which adds motor control to raise and lower the camera. We also note the laser and missile launcher mod which grafts a USB-powered foam missile launcher, with pan...

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Posted in hacks | 1 Comment »

Connecting Arduino to Mathematica on Mac OS X

Wednesday, December 28th, 2011

Mathematica is a comprehensive computational platform that purports to automate workflow involving computing results, "from building a hedge fund trading website or publishing interactive engineering textbooks to developing embedded image recognition algorithms or teaching calculus." (It's not open source, but a hobbyist license is available.) William J. Turkel teaches a...

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Posted in Arduino, code, how-to | 1 Comment »

Logic circuits and computer memory are printed together on a sheet of plastic

Wednesday, December 28th, 2011

Thinfilm Electronics and PARC developed a technology for printing semiconductors onto a plastic film. Last month, a small Norwegian company called Thinfilm Electronics and PARC, the storied Silicon Valley research lab, jointly showed off a technological first—a plastic film that combined both printed transistors and printed digital memory. Such flexible electronics...

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Posted in Development | No Comments »

USB Infrared Toy firmware v22 final released

Wednesday, December 28th, 2011

USB Infrared Toy firmware v22 final is now available for download. This includes bug fixes for both IR Toy hardware versions. This is the most stable IR Toy firmware yet. Download release package Download source archive Firmware update instructions The open source USB stack is performing well. After a little...

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Posted in firmware, Infrared toy | 5 Comments »

openHiFi open source music player update

Wednesday, December 28th, 2011

[embed]http://www.youtube.com/watch?feature=player_embedded&v=v-AOmWypgEs#![/embed] Brian made a video of the latest updates to his openHiFi project. openHifi is an open source music player based on the Procyon Cortex M3 development board. The most recent update reads Vorbis comments from the file metadata. Now it loads and assembles a list of all the song...

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Posted in dev boards | No Comments »

Alphanumeric “bubble-type” DL1414 LED I2C display driver

Wednesday, December 28th, 2011

Paul made built an I2C driver for a 16-digit alphanumeric "bubble-type" display. He used four 4-digit DL1414 displays connected to a PCF8575 16bit I2C port expander and a 74138 logic IC. He was nice enough to provide the source files for his project. Via the forum.

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Posted in project logs | 3 Comments »

Arhi’s transitor tester built into a case

Tuesday, December 27th, 2011

[embed]http://www.youtube.com/watch?v=vF8j4wzCECY[/embed] Arhi built a transistor tester, a tool that recognizes and measures most common semiconductors. We've been following this project closely for the past week or so. After building a perf-board version, he made this version to put in a case. Check out the video of it in operation above....

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Posted in project logs | 1 Comment »

Instek GW GFG-8016G signal generator review

Tuesday, December 27th, 2011

Sqkybeaver bought an Instek GW GFG-8016G signal generator for his birthday.  It's capable of creating sine, square, and triangle signals from 0.2 Hz -2 MHz. There's also a 6 digit counter available with a bandwidth of up to 10 MHz. As soon as it was in his possession Sqkybeaver opened...

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Posted in tools | No Comments »

Save to a microSD cards with simple serial protocol

Tuesday, December 27th, 2011

This is a UART driven microSD module that supports cards with up to 2 GB of storage. It stores data using the FAT16 file system, so any computer can read and write files to the cards too. It's controlled with simple serial commands from a microcontroller. Most micro-controllers have small...

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Posted in dev boards | 5 Comments »

ALSE free IP cores for non-commercial CPLD/FPGA dev

Tuesday, December 27th, 2011

Advanced Logic Synthesis for Electronics (ALSE) is a Paris based company providing product development, IP consulting and training courses involving HDL, ASIC and FGPA devices. They are making available a series of IP cores free for personal, non-commercial use. They state:For non-commercial projects only, we have taken the decision to...

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Posted in code, CPLD, FPGA | 2 Comments »

#FreePCB via Twitter to 2 random RTs

Tuesday, December 27th, 2011

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...

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Posted in Free PCBs | No Comments »

Portable software defined transceiver: Power amplifier

Tuesday, December 27th, 2011

Jason has been working on a portable software defined transceiver design for the past year. Every day this week he’ll discuss a different part of the hardware in a series of guest posts. You can chat with the designer in the forum.  Today’s post is about the power amplifier. Since...

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Posted in project logs | 1 Comment »

Bus Pirate back in stock

Tuesday, December 27th, 2011

Bus Pirate v3.5 is back in stock at Seeed Studio. Bus Pirate is a hacking multi-tool that has the capability to interface with most IC bus protocols used in the electronics industry today. Get your own handy Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors.

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Posted in Bus Pirate | No Comments »

XRF 863.8 MHz radio to Ethernet Bridge

Monday, December 26th, 2011

Jobytaffey is designing an Ethernet to radio bridge. This prototype uses an ENC28J60 for ethernet, and an XRF radio module. The XRF module is a UART-controlled 863.8 MHz transceiver with 250 Kbps transfer rates. Via Flickr.

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Posted in DIY | 6 Comments »

Little Wire UART bootloader

Monday, December 26th, 2011

Kehribar added a UART bootloader to his Little Wire AVR multi-tool. The Little Wire is an AVR programmer that can also be used as an SPI bridge, analog-to-digital converter, and PWM generator. This project uses the ATtiny Reset pin, which means a high voltage programmer has to be used to...

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Posted in project logs | No Comments »

The magic blue smoke monster “skill badge” is here

Monday, December 26th, 2011

Here is cool looking blue smoke monster "skill badge" from Adafruit. If you've ever had an IC go "poof", this is the badge for you. For the uninitiated, blue smoke refers to the puff of smoke made when some electronics parts fail and explode. The skill badges you can pick...

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Posted in kit biz | 2 Comments »

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Recent Comments

  • Drone: So these go for around $330 USD and NO published calibration procedure online or otherwise? Given what's inside - I don't think I'll be considering...
  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...