Sometimes we need to make a quick decision but choosing is not easy, so we flip a coin; now imagine doing the same with electronics. This transistor-based coin toss game circuit works like a real coin toss and produces a random result every time, and when we apply power to the circuit, no one can […]
Transistor Circuits
Transistor Based LED Chasing Flashing Circuit
Building a transistor-based LED chasing flashing circuit is a simple and interesting project, as this circuit switches LEDs ON and OFF sequentially to create a chasing effect, which gives it the name “chaser circuit This circuit uses simple transistors instead of ICs, making it easy for beginners to learn, it is suitable for learning and […]
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 the PIR sensor detects motion, it turns the light ON automatically and after a preset delay, it turns the light OFF, saving power and reducing human […]
Simple PIR Sensor Timer Circuit using Transistors
This article presents a simple PIR sensor timer circuit using transistors; the circuit costs little, is easy to build, and operates from a 12 V DC power supply. When the PIR sensor detects motion, the output stays ON for a preset time and then turns OFF automatically after the delay, hence, this feature makes the […]
Low Cost NPN Transistor Amplifier Circuit
Electronics is very interesting and amplifier circuits are very useful, as one of the basic amplifiers is the common emitter amplifier. This circuit uses an NPN transistor to amplify a small input signal into a larger output signal; therefore, designers use this circuit in sensors, audio circuits and switching applications. In short this article explains […]
Transistor Based Bicycle Tail Light Flashing Circuit
This project presents a simple transistor based bicycle tail light flashing circuit; the circuit primarily functions as a bicycle tail light and operates from a low voltage battery, making it suitable for portable use. Moreover, the circuit uses very few components, because of this its easy to build and also, power consumption is low and […]