Disco lights

Disco lights

Disco Deewane!! AH HA!! By using a simple two transistor circuit, we can make LED’s dance. Circuit Diagram This is the circuit for Astable Multivibrator. Due to continuous charging and discharging of Capacitor, the LED turns ON/OFF alternatively and appears to dance....
One circuit: Multiple Games

One circuit: Multiple Games

In this article, we will learn to assemble a simple electronics circuit. This is not only a learning activity – you can also develop multiple games using this circuit to enjoy yourself and impress your friends. In carnivals, Diwali mela or fete, you can display...
Good Morning Alarm: Activity

Good Morning Alarm: Activity

Circuit description: We have studied the circuit diagram of Good Morning Alarm in the previous article. Here, we will learn to assemble this circuit. A specially designed PCB is used to make this circuit. Such PCBs are called special purpose PCBs. No wiring is needed...
Good Morning Alarm

Good Morning Alarm

In this article, we shall learn about a simple circuit using light sensor LDR (Light Dependent Resistor). You may be surprised to know that we can sense light and incorporate electronics in our day to day life by using very simple and easy to handle components....
Water Alarm

Water Alarm

We have read about conductors and insulators and performed an activity to identify them in a previous article. Here, we are going to discuss a circuit which acts as water sensor by using the fact that water is a good conductor of electricity. This circuit can also be...
Automatic Night Lamp

Automatic Night Lamp

In the earlier article, we discussed the circuit which used LDR (Light Dependent Resistance) to make Good morning alarm. With slight modification in the circuit, we can use an LDR to make automatic night lamp. The LDR senses the intensity of sound in the surrounding...