A Transistor Based LED Chasing Flashing Circuit is a simple and interesting project. This circuit turns LEDs ON and OFF one by one, so it is called a chaser circuit. Simple transistors are used instead of ICs which the beginners can understand it easily. It is mainly used for learning and decoration. The components are […]
Automatic PIR Motion Sensor Light Circuit
This project explains about a complete Automatic PIR Motion Sensor Light Circuit. It is very useful for home and outdoor lighting, because the circuit uses a PIR sensor. Whenever motion is detected the light turns ON automatically. After some time, the light turns OFF and therefore, power is saved. Also, through this circuit the human […]
Simple PIR Sensor Timer Circuit using Transistors
Here, is a article for a Simple PIR Sensor Timer Circuit using Transistors. It is with low cost and easy to build and it works with 12V DC supply. When motion is detected the output stays ON for some time. After delay the output turns OFF automatically. Hence, this circuit is useful for lights, alarms […]
Low Cost NPN Transistor Amplifier Circuit
Electronics is very interesting and amplifier circuits are very useful. One of the basic amplifiers is the common emitter amplifier. In this circuit an NPN transistor is used which increases small input signal. An then it gives bigger output signal. Therefore, this circuit is used in sensors and it is also used in audio and […]
Transistor Based Bicycle Tail Light Flashing Circuit
This project is for a simple Transistor Based Bicycle Tail Light Flashing Circuit. It is mainly used as a bicycle tail light and it works on low voltage battery. So it is good for portable use. Moreover, the circuit uses very few components, because of this its easy to build. Also, power consumption is low […]
Square and Triangle Wave Generator Circuit
This Square and Triangle Wave Generator Circuit is a simple waveform generator. It gives two outputs at same time with one output is square wave and another output is triangle wave. Also, the circuit uses only one IC which uses few resistors and capacitors. So the cost is low and the circuit is easy to […]