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A UV Light Box For Making PC Boards
01 November 2007
Even though SILICON CHIP publishes most PC board patterns and/or has them available for download, making your own PC boards has for many been put in the "too hard" basket. Here's one reader's way of producing commercial-quality PC boards at home. He starts off by building an exposure light box with timer.
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Rolling Code Security System; Pt.2
01 November 2007
Last month, we described the circuitry and gave the PC board assembly details for our new Rolling Code Keyless Entry System. This month, we cover the installation and setting-up procedures and describe the optional SOIC adaptor board, so that you can program the PIC micro out of circuit.
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PIC Programmer SCIO Converter
01 November 2007
Programming 18-lead surface-mount SOIC PIC microcontrollers can be a quite difficult because access to the leads is not that easy. This adaptor PC board accepts 18-pin SOIC PIC microcontrollers and plugs directly into a conventional PIC programmer.
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Simple Data-Logging Weather Station; Pt.2
27 October 2007
Last month we introduced our new Rain and Temperature-Measuring Weather Station, with all the electronics.
This month we get into the nitty-gritty of building it - all the mechanical detail and then actual contstruction.
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Rolling Code Security System; Pt 1
09 October 2007
Ideal for keyless entry for doors in cars, homes & industry, this Keyless Entry System features a rolling code to ensure high security. It also has two door-strike outputs, an alarm system & provision to use up to 16 separate keyfob transmitters with the same receiver.
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Oscar: Electronic Noughts & Crosses Game
07 October 2007
Noughts and crosses may rate quite poorly amongst young gamers
of today but in the late 1960s, a machine, more often called an electronic brain than a computer, playing noughts and crosses against a human opponent, was quite a sensation.
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Stereo Class-A Amplifier; Pt.5
30 September 2007
In this article, we show you how to build a high-performance 20W Class-A Stereo Amplifier using the modules described over the last few months. The unit will be available as a complete kit from Altronics and the assembly is straightforward.
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A Fast Charger For NiMH & Nicad Batteries
20 September 2007
This is a truly versatile charger. It can charge up to 15 identical NiMH or Nicad cells. You can build it to suit any size cells or cell capacity and you can set the charge rate. It can fast charge, trickle charge and has safeguards, including temperature sensing, to prevent overcharging.
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