Schemes
Rain Alarm Circuit using Transistors
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}
Water Detection Alarm Device
This diagram shows a device used for water detection, when the probes come in contact with water, the alarm sounds. It consists of only 5 components that are easily available in the market.The IC CD4047 is CMOS-based, so pay attention {Read More}