Brilliant LED Projects: 20 Electronic Designs for Artists, by Nick Dossis

By Nick Dossis

Marvelous LED tasks offers 20 hands-on, step by step tasks that you can make utilizing low-cost, in general on hand parts. initiatives variety from uncomplicated, practical units, reminiscent of a «green» LED flashlight and a flashing rear motorbike gentle, to extra advanced designs, together with color-changing disco lighting and persistence-of-vision (POV) gadgets--all that includes easy-to-follow directions, highlighted with distinct illustrations. construct with self belief utilizing this books professional tips and sensible info, together with overviews of assorted LED elements, entire listings of device and offers, pattern clock and motive force circuit development blocks, and extra. A spouse web site promises entry to specific content material, together with downloadable meeting codes and programming codes (for the tasks powered via the PIC 16F628 microcontroller). Plus, each bankruptcy spotlights key recommendations and strategies that make it effortless and relaxing that you can produce crowd pleasing LED monitors. nice for first-timers and specialist hobbyists alike All tasks should be outfitted with stripboard--no have to translate advanced schematics, or buy certain PCBs contains broad guidance for secure meeting examine the elemental rules of each venture component--from LEDs to dot-matrix screens and diverse built-in circuits Create your individual designs utilizing construction blocks and meeting thoughts from the books initiatives

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Extra info for Brilliant LED Projects: 20 Electronic Designs for Artists, Hobbyists, and Experimenters

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If you are using a basic soldering iron (like I do) then you just need to wait for a few minutes after switching the soldering iron on, and then touch the tip of the iron on a piece of solder to see if it mlelts. If the solder doesn't melt quickly then the soldering iron is not hot enough. Figure 1-16 Ang ling the tip 4. Use your free hand to "feed" the solder onto the junction that is created by the hot tip, the component lead, and the stripboard, which will cause the solder to melt onto the component lead and the copper strip, as shown in Figure 1-17.

If you find that any of the components become hot after you power your project up, then remove the battery immediately and check the board for faults. Also check that you are using the correct component values and the correct battery voltage as outlined in the relevant project chapter. Drilling and Cutting Guidelines Some of the projects show you how to house the stripboard layouts into plastic enclosures and this may require you to perform some drilling or cutting. m the drilling and cutting for you.

Series Resistor Calculations The resistance (R) value of the resistor in Q is calculated using the following formula: where V is the supply voltage, VF is the typical forward voltage drop of the LED, and IF is the current allowed to flow through the LED. Both VF and IF are specified on the LED datasheet. NOTE The mA value of IF needs to be converted to amps in all of these equations. LED datasheets normally show typical and maximum IF values, but it is not necessary to use the ,maximum value when calculating the resistor va'lue.

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