Product Description:

• PCB Dimensions: 3.2cm x 1.4cm
• Voltage: 3.3V~5V
• Output Format: digital signals (0 and 1) and analog output AO
• The comparator output is a clean signal, with a good waveform, strong driving capability, over 15 mA
• The sensor is made from FR-04 double-sided material, large area 5.5 x 4.0cm, with nickel plating, oxidation protection, and superior electrical conductivity
• Fixed hole for screw for easy installation
• Sensitivity is adjustable via potentiometer
• Board with mounting holes for ease of installation
• Wide voltage comparator LM393

Usage Instructions:

• Connect the 5V power supply, the power indicator light will turn on. When the sensor board has no water droplets, the DO output is high, the switch is off. Place a drop of water, the DO output will be low and the indicator light will turn on.
• Remove the water droplets and the output will return to high output state.
• The analog output AO can be connected to the AD input of a microcontroller for detecting the size of raindrops.
• The digital output DO TTL can also be connected to the microcontroller for rain detection.

Connection:

• VCC: positive power supply (3-5V)
• GND: negative power supply
• DO: TTL signal output
• AO: analog signal output