Battery Voltage Level Indicator Circuit using 3 LED is small circuit to show battery voltage with 3 LED One LED for low, one for medium and one for full charge. It helps to know battery is good or need charging. This circuit is easy to make and can be used for 12V battery but with […]
Indicator Circuits
How to Build a Two LED Temperature Indicator Circuit
This article show How to Build a Two LED Temperature Indicator Circuit which is easy and cool project. This circuit is used for many thing like: To check water shower when it is not too hot so no damage can happen Be sure computer parts, amplifier, heater and even car water tank do not get […]
Simple Water Level Indicator Buzzer Circuit
This Simple Water Level Indicator Buzzer Circuit show how much water is there inside a tank. It make beep sound like alarm when water goes too high or too low. We can make it using transistor and some other small electronic parts. It only beep when water touches two metal pieces inside the tank. In […]