Automatic Soap Dispenser Circuit is like robot for soap. Inside it have a special plan like electric circuit with small parts. It has got sensor like small eyes, brain chip like microcontroller, and pump like tiny muscle. When sensor sees our hand its brain tell pump Give soap! and it gives the right amount. Circuit […]
Signal Injector Circuit
Signal Injector Circuit is small tool for electronics. It send special signal inside the circuit. This help to find problem or see where signal goes. Mostly it is used in sound and radio circuit but can use in other circuit also. Circuit Working: Parts List: Category Item Quantity Resistors 100k 1/4 watt 2 10k 1/4 […]
Simple LED Constant Current Circuit
Just think like water pipe filling bucket. Normal circuit is like set water pressure voltage and hope the bucket fills good. But with LED this Simple LED Constant Current Circuit is like smart nozzle. It keep water flow current same even if pressure changes a little. This way LED light up nice and live longer. […]
Simple Bedwetting/Wet Diaper Alert Circuit
Simple Bedwetting/Wet Diaper Alert Circuit is one special electronic helper! It know when someone pee in bed or diaper and then it make sound like doorbell ding ding! So parents or helper can know fast and come for help. Good for kids who pee in bed at night or people who need more help for […]
1.5V Audio Amplifier Circuit
A 1.5V Audio Amplifier Circuit is small circuit it makes sound signal more strong using only 1.5V battery. This type of circuit is low power amplifier which is good for things that uses battery or when big power is not there or not needed. Circuit Working: Parts List: Type Value Quantity Resistors (All resistors are […]
Solar LED Lantern Circuit
Solar LED Lantern Circuit is small setup using sun power to give light with LED. It have solar panel through which the battery charges again to LED lights and some small parts like diode, resistor and transistor. Circuit Working: Parts List: Type Value Quantity Resistors 15Ω 1/2W 1 1.5Ω 1/2W 1 1k 1/4W 2 Semiconductors […]