Compared to basic circuit this Long Range IR Transmitter Circuit can send IR light farther using easy parts. Main idea is to make IR LED blink light in pulses. Most IR receivers catch specific frequency made by IC 4047. Using more LEDs together or stronger LED gives more IR light, so with better range. This […]
Basic Circuit for Multi-Way Lamp Switching
We can control one bulb from many places using Basic Circuit for Multi-Way Lamp Switching. Three-way switches are also called two-way and four-way switches are also called intermediate which are also used. Three-way switches go at both ends like at hallway doors. They have 3 terminals: Traveler 1, Traveler 2 and Common. Four-way switches go […]
How To Test a Multi-Core Wire using Cable Tester Circuit
We can learn How To Test a Multi-Core Wire using Cable Tester Circuit through this tutorial. This tool check if cable is working or not. It find wrong connection like short or broken wire. Circuit is good for multi-core cable with many wires inside. It help check all wires are okay. We can also use […]
Simple Tilt Sensor Switch Circuit
Simple Tilt Sensor Switch Circuit control ON/OFF of LED or buzzer. Tilt sensor work like small seesaw switch. Inside a sensor there can be a small metal ball. When sensor stand straight the ball touch two points and then the current can pass. When sensor tilts the ball move away and the current stops. This […]
Simple Door Keyhole Light Circuit
When ON, small device like Simple Door Keyhole Light Circuit gives light to keyhole. It helps to put key in hole when light is low. It uses light sensor and circuit to check light level. To switch it by light we used transistor and LDR. Circuit Working: Parts List: Category Item Quantity Resistors 47k 1/4 […]
Simple Footstep Electricity Generator Circuit using Piezo Transducer
Piezoelectric transducer are used in footstep power circuit. It changes foot pressure into small electric power. Piezoelectric effect means crystal which makes electricity when press or stress happen. If we press special crystal a small current comes out. Simple Footstep Electricity Generator Circuit uses parts like piezo transducer, bridge rectifier, capacitor, resistor and LED. Circuit […]