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 to the static while installing it. Probes can be any two metal surfaces. It is best to install the screws on the edges of the PCB board, this way you get a rack that holds the entire device above water and you can use any two screws as probes. Setting the alarm is to touch the probes by hand or place the probes of the device in the water and adjust the P1 potentiometer until you get a satisfactory sound from the piezo speaker.
Circuit Digaram Water Detection Alarm Device
Components Detail for Water Detection Alarm Device
CD4047 Pin Description
As mentioned earlier there are 14 pins on the IC interface with every pin is used with a specific purpose. The given below table shows the pin description of each pin.It is a CMOS very Low Power mono stable/stable multi-vibrator mainly used for converting DC current signal to AC signal.(Water Detection Alarm Device)