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PCB drill with an USB microscope as visual aid

Posted on October 6, 2014 by R-B One comment

Single-sided PCBs are relatively easier to homebrew. Holes for PTH components can be drilled with a reasonable accuracy without any sort of visual aid. However, if you want to make double-sided PCBs with strict drilling requirements, eyeballing might not be enough to drill holes at precise locations. This Instructable is about making a USB microscope guided PCB drill to achieve better accuracy in drilling holes in PCBs. Unlike regular drills, this machine drills holes from bottom to top.

Surfing internet with Arduino Uno

Posted on October 6, 2014 by R-B Leave a comment

Gilchrist’s PIP Arduino browser is an on-going project to develop a very basic and functional web browser that runs on Arduino Uno. The current version can download and render plain HTML and follow embedded links. Users can page through the hyperlinks with the help of a joystick. The project uses a 320×240 TFT LCD screen for output.

Mikroelektronika announces to develop compilers for FTDI’s 32-bit MCUs

Posted on October 5, 2014 by R-B Leave a comment

MikroElektronika has announced a close cooperation with FTDI Chip to develop a series of compilers and hardware development boards for FTDI’s FT90X series of microcontrollers. 1st October 2014 – Belgrade-headquartered development tool chain supplier MikroElektronika has signed a formal agreement with FTDI Chip to create mikroC, mikroBasic and mikroPascal compilers for the FT90X 32-bit microcontroller offering. The FT90X utilises a proprietary 32-bit RISC architecture – allowing it to set performance benchmarks beyond 2.93DMIPS/MHz, with true zero wait-states operation up to 100MHz frequencies, as well as capacious memory and an array of advanced connectivity resources. Read More

Mechanical drawbot using four-bar linkage mechanism

Posted on October 5, 2014 by R-B Leave a comment

Drawbots are a lot of fun to build. Here is an Instructable for building a mechanical artbot using a basic circuit involving a battery and a DC motor. The project uses a four-bar linkage mechanism added to the motor to change its motion in a special way to create some fun arts.

12 Watt low frequency class “AB” amplifier for audio applications

Posted on October 3, 2014 by R-B 2 comments

Rajkumar Sharma has shared his 12W Audio Amplifier project on Electronics-Lab. It is a low frequency class AB audio amplifier built around TDA2006, which provides 12W output to a 4Ω load at ±12V power supply.

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