264 $

Description

The sensor uses high quality FR-04 double-sided materials, large area of 5.0 * 4.0CM, and nickel-plated surface, with oxidation resistance, conductivity, and life expectancy superior performance.
Comparator output, the signal clean, good waveform, strong driving ability, more than 15mA.
The raindrop board and the control board are separate, easy to lead the line.
TTL level output, TTL output valid signal is low. Drive capacity of about 100MA, direct drive relays, buzzers, small fans, and so on..
Adjust sensitivity by potentiometer.

Instructions: When connected to a 5V power supply , power indicator light, no water droplets on-board sensors , DO output is high, switch lights off, drop a drop of water , DO output is low, the switch indicator light Brush above water droplets, has returned to output high state AO analog output can be connected to the microcontroller AD port to detect drops in the above rainfall size DO TTL digital outputs can also be connected to the microcontroller to detect whether there is rain . Features: Power indicator, output signal LED indicator No rain when the LED light output is high, the raindrop up, the output level, LED light. Large area raindrops, more conducive to the detection of rain. Board with positioning holes for everyone to install Voltage: 5V Control board board size: 3 * 1.6 MM Large area raindrop test board 5.4 * 4.0 MM Wiring: 1. VCC: positive power supply (3-5V) 2. GND: power supply is negative 3. DO: TTL sw signal output 4. AO: analog signal output Package Included: 3*LM393 Rain Drops Sensor

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HiLetgo 3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino

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