3.7v battery low full indicator

3.7v Battery Low Full Indicator Ciruit

October 22, 2019 admin 0

In this project 3.7v battery low full indicator circuit, we are going to make a very simple battery level indicator. This indicator circuit is for a 3.7 volts indicator. We have designed this circuit with few components at home with {Read More}

Rain Alarm Circuit

Rain Alarm Circuit using Transistors

August 19, 2019 admin 0

A rain alarm sensor circuit is very beneficial device for alerting when rainfall. The following circuit diagram is Rain alarm circuit. The diagram shows a water detection circuit. It consists of two NPN transistors. When there is no  rain fall {Read More}