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Review: Tevion TEV8200 HD Set-Top Box
01 March 2008
If you currently have an analog TV set or a digital
projector and don't want to change it, you will need a high definition set top box to watch HD TV broadcasts - now and more importantly in the future.
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A Low-Cost PC-to-I2C Interface For Debugging
01 March 2008
Tracking down problems in circuits which are programmed via an I2C bus can be tricky and time-consuming, unless you take advantage of a debugging program running on a PC. Here's a low-cost, easy-to-build printer port to I2C interface designed to work with the Philips/NXP debugging program URD312.exe.
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One-Pulse-Per Second Driver For Quartz Clocks
01 March 2008
This simple add-on module for the GPS-Based Frequency Reference is designed to drive the escapement coil of a low-cost quartz clock movement. It uses the 1Hz GPS pulses available at the rear of the Frequency Reference so that the clock can display local time with GPS-based accuracy.
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How To Solder Surface Mount Devices
01 March 2008
Many electronics enthusiasts hesitate to build projects involving surface-mount devices (SMDs) because they're daunted by the prospect of soldering such tiny parts to a PC board. But it can be done. Jim Rowe shows us how...
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Electric Flight
01 March 2008
Battery-powered aircraft creates aviation and technology history
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PICAXE VSM: I'ts Time to Play; Pt.3
01 March 2008
In the third part of our PICAXE VSM tutorials Clive Seager talks us through using some of the 'virtual instrumentation' included with the software - from a simple voltmeter to an advanced I2C protocol debugger!
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Circuit Notebook
01 March 2008
Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.
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The I2C Bus: A Quick Primer
01 March 2008
Developed by Philips over 25 years ago, the I2C bus is now a well-established standard for low to medium-speed data communication between ICs. However, its basic operation still isn't well understood, except by people in the chip design business. Here's a quick primer to bring you up to speed.
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12V-24V High-Current DC Motor Speed Controller, Pt.1
01 March 2008
This 12V or 24V high-current DC Motor Speed Controller is rated at up to 40A (continuous) and is suitable for heavy-duty motor applications. All control tasks are monitored by a microcontroller and as a result, the list of features is extensive.
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A Digital VFO with LCD Graphics Display
01 March 2008
This DDS VFO uses a widely available recycled Nokia cellular phone LCD to display analog and digital frequency readouts, text, and VFO status messages
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