Friday, February 10, 2012
A flashing LED "flash"Thursday, February 9, 2012
Reduce the voltage supply 230 VAC to a DC voltage transformerlessWednesday, February 8, 2012
Tester quartz up to 1 MHzTuesday, February 7, 2012
Automatism PhotoresistiveMonday, February 6, 2012
A three-tone ringerSunday, February 5, 2012
A seven segment display digital giantSaturday, February 4, 2012
An RX for HF anti burglar of pocketFriday, February 3, 2012
An TX for HF anti burglar of pocketThursday, February 2, 2012
An LED boardWednesday, February 1, 2012
An electronic candleTuesday, January 31, 2012
Universal remote control receiverMonday, January 30, 2012
A robot for beginnersSunday, January 29, 2012
A proximity detectorMost visited posts this week
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This LED board displays a maximum of 46 characters scrolling speed is easily adjustable using buttons. It operates independently and all ope...
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Figure 1: Diagram of the circuit flash LED and components list. I had a high brightness LEDs, such as the one you use in assembling EN...
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This device is a generator based on the voice audio chip from Holtek HT8950, when talking into the microphone, the voice from the loudspeake...
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This description provides a powerful micro-receiver, adapted to listen for transmissions on 433.75 MHz at a distance. It allows the activati...
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I) Presentation : The problem of signal transmission by audio frequency electromagnetic wave led in recent years of practical arrangem...