Circuit Project Electronic

Courtesy Light using IC 7555
Monday, December 1st, 2008

This track is designed to allow users to turn off a light switch away under beds, so that they may have enough time to lie down before the light switch off really.
It is clear that users will be able to find different applications on the track to meet their own needs.
Read more : http://www.redcircuits.com/Page27.htm

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Fridge door Alarm with IC 7555
Saturday, November 29th, 2008

Alternative version of the popular circuit
3V battery supply - Still operating at 1.3V
This is due to the use of CMOS integrated circuits 4060. In some cases, some of the equipment made by the manufacturer (rather than the Motorola) does not run, even in the name of 3V supply voltage.
A simple treatment, can be an [...]

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Self-powered Fast Battery-Tester with IC 7555
Wednesday, November 26th, 2008

The fast track to run tests without battery power or high voltage dynamic table. It is equipped with two areas: short-wave set to show the circuit diagram, the device can test 3V to 15V battery. When the switch is a short-wave to a different location, only pieces of 1.5V cells can be tested.
Source

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