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Digital Lighting Controller For Christmas Light Shows, Pt.3
16 December 2010
Christmas is just about here! Have you got your Digital Lighting Controller ready yet? In the first two articles we explained how the Digital Lighting Controller works and how to build it. This third article explains how to use the software - primarily the Windows-based sequencing program.
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Digital/Analog USB Data Logger
12 December 2010
Based on a PIC micro, this simple project can log lots of data to a memory card. It can read from many types of digital and analog sensors and features a real-time clock and calendar to "time-stamp" the data. It has a USB port and comes with a PC host program, allowing you to configure the sensors, change settings and charge the battery.
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Circuit Notebook
10 December 2010
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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Recycle Your Cordless Drill - Make It Corded
08 December 2010
Handyman cordless drills are very cheap - most readers probably have at least one or two in their tool collection. But their big weakness is the battery pack and associated charger. What do you do when the battery pack dies? Just convert the drill to corded operation. It's a simple conversion and ideal for working close to 12V power.
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A Hot-Wire Cutter With Inbuilt Heat Controller
06 December 2010
If you've ever tried to cut polystyrene (especially!) and polyurethane materials using a saw, razor blade or knife, you'll know that the results are invariably less than satisfactory. If you are after a clean, precise cut, a hot-wire cutter is the answer. The hot wire actually melts the material and results in a very neat, very fine cut, without the thousands of bits of foam flakes you normally get.
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Ultrasonic Anti-Fouling Unit For Boats, Pt.2
22 November 2010
In the September issue we published
the details of the ultrasonic driver for
this project, which is housed in an IP65 case
for safety and protection from water ingress.
This month we describe how to encapsulate the
ultrasonic transducer so that it is completely
safe to handle. Once it is encapsulated it will operate reliably, even if it is submerged in the bilge of the boat. We also show a typical installation of the system in a large power boat.
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A High-Quality DAB+/FM Tuner, Pt.2
20 November 2010
Last month, we introduced our new DAB+/FM Stereo Tuner and gave the circuit details. This month, we show you how to assemble the two PC boards and install them into a low-profile steel case.
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Circuit Notebook
16 November 2010
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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Ab RFID Security System
14 November 2010
Here's a high-security system that's very easy to build but offers you peace-of-mind for your home, car - in fact, anything where entry needs allow the good guys in but reject the bad guys. Team it with an electric lock and you can have a keyless entry system as well!
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