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Touch Activated Alarm System using 555 IC
The 555 can be LM,NE or MC(cmos) type.C1/C2's working voltage should be increased to 25V if you decide to go with a 12V power source . R...
Simple L200 Charger
This circuit came about as the result of an urgent need for a NiMH battery charger . No suitable dedicated IC being immediately to ...
IC 555 Pin out Specs Explained
In several circuits, wherever it's required generation of regular events, you'll realize this integrated circuit's importance...
Simple Intelligent Battery-Charging Circuit Diagram
Intelligent Battery-Charging Circuit Diagram. Intended for a Nicad application this charging circuit can be used with a wide range of batt...
RF Remote Control Encoder and Decoder Chip Pinouts Explained
Making your own universal remote control systems today is very easy. Such procure the relevant chips, assemble them and here goes, your hi-...
9V Automatic Battery NiCd Charger using 555 IC
This automatic NiCd charger for 9V NiCd batteries is using 555 timer properties and is very easy to build. Why is an automatic 9 volts NiC...
Automatic heat detector
This circuit uses a complementary pair comprising npn metallic transistor T1 (BC109) and pnp germanium transistor T2 (AC188) to detec...
How to build Solar Panel Based Charger And Small LED Lamp
You can save on your electricity bills by switching to alternative sources of power . The photo voltaic module or solar panel described he...
Infrared sensor
This circuit is one of the most basic and popular sensor modules . In electronics, this sensor is analogous to human’s visionary senses whic...
Servo Tester and controlling Circuit
This below circuit is used to turn a servo clockwise and anti clock wise manually.By Pressing the Forward and reverse button we can control...