Digital Dice Circuit is small electronic like thing, which work like real dice and shows number from 1 to 6; it also uses lights and buttons which is no need to throw. As a result, this circuit is good for games and fun and is easy to build. Circuit Working: Parts List: Components Values Quantity […]
Indicator Circuits
Low Battery Indicator with Buzzer Circuit
To begin with, this Low Battery Indicator with Buzzer Circuit is very simple and uses basic idea and few parts. Buzzer make sound when battery is low and warn us and it help us to know when to change the battery so device do not stop suddenly. Circuit Working: Parts List: Components Values Quantity Resistors […]
Simplest Blown Fuse Indicator Circuit
This Simplest Blown Fuse Indicator Circuit shows if fuse is good or bad without checking it by hand; also if fuse is okay then green LED turns ON. Furthermore, if fuse blows then green LED goes OFF and red LED turns ON and that means fuse is bad and needs to change. Circuit Working: Parts […]
Using a Reed Switch as a Current Monitor Circuit
Reed switch is small switch which works with magnet and when wire is near it has current and it makes magnetic field. This magnetic field turns the reed switch ON or OFF, depending on its design and it also helps us show whether current is present or not. Circuit Working: Parts List: Components Values Quantity […]
Simple LED Voltmeter Circuit
This Simple LED Voltmeter Circuit works like a small battery checker with LED lights., unlike a phone battery bar, this circuit uses LEDs to show the remaining battery level in many small electronic devices. More LEDs turn ON when the battery has more charge and each LED turns ON at a different voltage level. The […]
Simple Water Level Indicator Circuit using IC ULN2004
This Simple Water Level Indicator Circuit using IC ULN2004 work like small helpers for our water tank; as 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 […]