The PIR Movement detector with light-activated
This is PIR motion sensor circuit. The movement lasted only one. the detection accuracy of Pyroelectric. As product of a Passive infrared detector PIR. [...]
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February 3, 2013
Include: Volt meters :: Sound level meter :: Analog vu meter :: Soil moisture meter :: Digital meter circuit diagram :: Temperature measurements :: Electronic measurement tools :: Frequency meters :: Best battery tester :: Transistor tester project
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Cheap frequency meter circuit using 555 and CA3140
The electronics are still used to use a frequency generator circuit beuause It is important. And are used a lot in electronic circuits, both sine, square wave and more. In…
January 14, 2013
Simple LED voltmeter circuit using LM3914
This is Simple LED voltmeter circuit using LM3914, can measure any volts 1.2V to 1200V on 3 range with 10 LED display easy to look and use 9V battery
January 8, 2013
LM3914 VU Meter circuit
This LM3914 vu meter circuits, the VU meter kit, with the assembly various parts on their own or the style ready to use. Most of us are using the IC-LM3914 [...]
November 16, 2012
Soil moisture detector circuits and automatic controller
Simple ideals of soil moisture detector circuit projects, can alarm with LED and buzzer, and controller as water for plants
October 29, 2012
Flyback transformer tester circuit using 2SC828
The Flyback transformer tester circuit of the televisions that the result is a simple, cheap to build. so easy to use with output high volts Flyback [...]
August 26, 2012
Simple battery status monitor circuit using IC-7555
Simple battery status monitor circuit using IC-7555 or low power LED flasher by ICM7555, need to use LED display status of the battery 6V-12V
August 11, 2012