This Simple Water Level Indicator Circuit using IC ULN2004 work like small helpers for our water tank. It uses one special chip named as ULN2004 to control many things together. This chip can work with big electricity but here it only control lights. The lights show how much water is inside the tank. So with […]
Simple 220V Time Delay Switch Circuit with Triac
Think this circuit is like a smart switch for our home things which wait for some time before power comes. This Simple 220V Time Delay Switch Circuit with Triac work like power button but it does not gives power fast. It waits for little time and then gives power to light, fan or motor. We […]
Timer Circuit with Alarm using IC 4060
This Timer Circuit with Alarm using IC 4060 like small stopwatch which is having buzzer inside. It uses one chip named as IC 4060 and this chip count seconds like small clock. We can set time how much we want. When the time finishes buzzer make sound to remind like a kitchen timer. This circuit […]
Simple 2 LED Battery Status Indicator Circuit
This Simple 2 LED Battery Status Indicator Circuit work like gas meter but for battery. It uses LED lights to tell how much power battery still have. One light mean battery is full another light mean half power and last light mean time to charge. It use small parts like resistors, Zener diodes and transistors […]
Fast Charger Circuit with Auto Cut Off
This Fast Charger Circuit with Auto Cut Off is fast charger for battery like car battery or backup battery. It charges battery very quick but there is no need worry it wont overcharge. Inside circuit there are have safety part when the battery is full it stops charging by itself. This helps battery stay good […]
Water Level Indicator Circuit with Digital Display
No need to check water with normal stick. This Water Level Indicator Circuit with Digital Display use sensor to check water level. Then it show number from 0 to 9 on small screen, like mini calculator. So we can always see what level the water is in the tank. With this there is no need […]