Rain Water Detector

Download Skema

Rain Water Detector

Password : asinan


Component list of rain detector

• R1 1K 1/4 W Resistor
• R2 680 Ohm 1/4 W Resistor
• D1 1N4001 Silicon Diode
• BZ1 12V Buzzer
• S1 SPST Switch
• SCR1 C106B1 SCR 106CY
• SENSOR

The sensor is a small piece of PC board etched to the pattern showen in the schematic. The traces should be very close to each other, but never touching. A large spiral pattern would also work.
Make sure to use a loud buzzer.