This simple article is for Two Star Flasher Circuit with 555 IC. Main part is 555 timer IC which works in astable mode. In this mode IC give continuous square wave pulses. These pulses make two lamps blink one by one like star. Blink speed depend on resistors and capacitor values. Transistor are used for […]
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Auto On Off Light Circuit for Washroom
In washroom many time people forget to switch OFF the light because of this there is waste of electricity. To solve this problem we can make a Auto On Off Light Circuit for Washroom. When someone presses the switch it detects the presence and light will turn ON for some time and then get OFF […]
12V Mini Emergency Light Circuit with LDR
12V Mini Emergency Light Circuit with LDR is simple project to make. Light is ON automatically when dark. It works with bright white LED and uses 12V battery. Circuit is good for home, garage and emergency. Circuit Working: Parts List: Component Type Value Quantity Resistors 10k 1/4 watt 1 2.2k 1/4 watt 1 33Ω 3 […]
USB Lamp Circuit for Portable Lighting
USB Lamp Circuit for Portable Lighting is good for portable light. It is easy to use and takes power from USB port of 5V. It have rechargeable battery which are more useful. USB port give only 100 mA so use LEDs less. Circuit have transistor, diodes, capacitor, resistors, LEDs for good light. Circuit Working: Parts […]
Simple Mains Powered LED Light Circuit
Simple Mains Powered LED Light Circuit runs on 230V AC mains. It uses capacitor dropper to limit the current. LEDs in series-parallel are cheap and easy for mains lighting. They are with bright white light and no big transformer. It is good for low power light needs. Circuit Working: Parts List: Component Type Value/Specification Quantity […]
Simple Time Delay LED Circuit using Transistor
This article is about Simple Time Delay LED Circuit using Transistor where the LED lit after a short wait. The circuit needs transistor, capacitor and few resistors for delay. It is good for power light, warning light and timing project. It work with 10V DC and fits many electronics. Circuit Working: Parts List: Component Specification […]