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More SPI 4-digit seven segment LED displays are available

Posted on December 8, 2012 by R-B Leave a comment

Four digit SPI 7-segment LED displays are back in stock now on Tindie. The board has been revised from its earlier version and now contains an additional header connector to cascade multiple displays. The new header provides access to DOUT pin of MAX7219 driver IC. If you want to add a seven segment LED display to your project without giving up too many I/O resources, this board allows you to do that using only 3 I/O pins and it costs only $10. Tindie buying link for SPI 4-digit seven segment LED display

USB keyboard turns into an AVR programmer

Posted on December 5, 2012 by R-B Leave a comment

If you have an old USB keyboard that is just laying around and not usable anymore, you might consider converting it into an AVR programmer. This project from Steve is about constructing an AVR programmer using an USB keyboard controller board and an optocoupler. Steve writes, “Most keyboards have at least three indicator LEDs (Num-, Caps- and Scroll-Lock), which can be controlled from the host using a HID Set_Report request, and thus can be used as general purpose outputs. The inputs are a bit more tricky, since the keyboard uses a scan matrix divided in rows and columns. Most keyboards

New Easy Pulse boards with red solder mask

Posted on December 2, 2012 by R-B 3 comments

New Easy Pulse PCB boards are now available with red solder mask. You can buy PCB only for $5.00, PCB+TCRT1000 sensor for $7.00, or complete Easy Pulse kit for ($15.50), and are available on Tindie. Tindie link: Buy PCB only Tindie link: Buy PCB+TCRT1000 If you buy a full kit you will receive all the parts to assemble the board, which will look like as shown below. Tindie link: Buy complete kit Easy Pulse board provides a reflective IR sensor with necessary instrumentation circuit to illustrate the principle of photoplethysmography as a noninvasive technique for measuring heart rate. It uses the TCRT1000

Tindie announces its first Cyber Monday sale today

Posted on November 26, 2012 by R-B Leave a comment

In past few months, Tindie, an online marketplace for creative electronics makers, has grown tremendously fast, covering 21 countries around the world. Today is Tindie’s first Cyber Monday and sellers are offering awesome discount in their products. Visit the following link to find out various discount coupons: https://tindie.com/blog/tindies-1st-cyber-monday-bonanza/ Embedded Lab is also offering 10% discount on all available products including Easy Pulse kit. Use coupon code: 79FBC2D at check out.

Digilent announces Design Contest 2013 for US and EU regions

Posted on November 8, 2012 by R-B One comment

Digilent has just announced their annual US and EU regional Digilent Design Contests for 2013. Digilent Design Contests are engineering contests open to all students enrolled in any educational institution in that region. Students are challenged to create an original project featuring whether FPGA boards featuring state-of-the-art Xilinx FPGAs, microcontroller boards featuring Microchip microcontrollers, or chipKIT boards based on the Arduino development environment.

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