1. Simple Voltage level indicator
Here, we have given an idea about a very, very simple voltage level indicator in two different ways. voltage level indicator with resistors and voltage level indicator with Zenor, Both circuits are very simple and informative, especially for the students who are beginners in the field of electronics. |Read More|
2. Electronic Mosquito Repellent Circuit
People use coils, mats, creams, and liquids as mosquito repellents at various places. However, these repellents almost become the cause of dangerous diseases like skin cancer, breathing problems, etc. That is why electronic mosquito repellent is best to protect your homes instead of another repellent. We have made this circuit with a 555 timer IC to generate the ultrasonic sound for mosquito repellent. |Read More|
3. water level indicator
This circuit is about water level indicators. By using transistors, you can also make this circuit by using switching ic 2003. A water level tester is a very important circuit to save water wastage. You can also connect the relay with this circuit to control the level of water in the water tank. |Read More|
4. Automatic Fire Alarm Circuit
A fire alarm circuit is a circuit that detects the fire and activates the siren alarm connected with the circuit. Fire alarm circuits are very important devices to protect people or property from damage. In this article, we have built this circuit just with a single transistor and thermistor (heat sensor). |Read More|
5. Flip-flop with timer IC 555
This circuit is about a flip-flop with a timer IC 555. We have used 8 LEDs of 2 pairs that glow after one another. The timer IC is the most commonly used IC in the field of electronics circuits. |Read More|
6. Non-contact voltage tester
A non-voltage tester is a device that detects AC voltages without touching the wire or any other objects of AC. In this modern era, everyone uses almost all AC appliances. When we check any object, we must verify whether current is present in it or not. |Read More|
7. Single Transistor Amplifier Circuit
In this project, we have designed a very simple single-transistor amplifier. We can use any NPN-type transistor in this project. It’s a very low-power single-transistor amplifier but reliable for low boosting. The transistor takes input from any source and boosts it and gives output. |Read More|
8. Flip Flop using Transistors
In this project, we are going to make an LED blinker circuit using transistors. This circuit is mostly used in almost all electronics projects, like timers, blinkers, etc. Nowadays 555 timer IC is using instead of transistors because the IC chip (555 timer IC) is easy to use due to the embedded circuit, which works the same as transistors.
In this simple and interesting project, we have made a very simple inverter circuit. In this circuit, we have used a transformer from a mobile phone charger and a transistor from an old CFL (saver circuit), and extra, we have used a 10-ohm resistor, which is connected with the base. Actually, it’s an oscillator circuit and the same as jelly thrift working. /Read More/
10. Rain Alarm Circuit using Transistors
In this simple circuit, we have to build a simple electronics project that detects water or rain and rings an alarm to alert us. This alarm is very useful for auto-cutoff of current in the rainy season to protect the lives of humans. This is a basic circuit that is used in water level indicators and auto shut-off for the water pump.