This is small project for making a LED Emergency Light Circuit. It help when power goes OFF which is very easy to build and does not cost much. We use these LED because it saves power and last for long time. Circuit Working: Parts List: Category Item Quantity Resistors 1k 1/4 W CFR 1 100Ω […]
Automatic Bedroom Lamp Timer Circuit
Automatic Bedroom Lamp Timer Circuit turns OFF by itself and this is a very cool idea. But first think about safety. Do not touch when it is plug in as It takes big power from wall. This circuit is not too hard. When we press button then many parts start working together. What is a […]
How to Build a Simple Solar Cell Circuit using a 2N3055 Transistor
Anyone wants to know how solar panel work? We can try How to build a Simple Solar Cell Circuit using a 2N3055 Transistor at home which is possible. If we like electronics and know transistor then we will enjoy this project. This model is not big and cannot give power to house but very good […]
Continuity Tester Circuit
This Continuity Tester Circuit uses two transistor like small switch for checking wire is good or bad. We just need battery and one LED light. One side touches to battery other side touches the wire. If wire is okay, then current connects through and light will ON. That mean electricity flows without stopping. If wire […]
Simple Piezo Buzzer Circuit
This Simple Piezo Buzzer Circuit make sound in new way. It is easy to make and need only few parts like: It make high sound like a whistle. This circuit is special because coil makes the sound to keep going and is not like other circuit with resistor and capacitor only. What is a Piezo […]
Simple Li-Fi Transmitter Receiver Circuit
Think internet is like a light and not a radio wave. Simple Li-Fi Transmitter Receiver Circuit do the same thing like that. This article tell how to make simple Li-Fi system to send and get data using light. Transmitter uses bright LED and normal transistor to send signal. Receiver catch signal with light sensor like […]