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Product Name: Raindrops module / sensor

1 description
Voltage: 5V
Power indicator, the output signal LED indicator.
TTL-level output, TTL output valid signal is low. Driving capability around 100MA, can directly drive relays, buzzer, small fan, and so on.
Sensitivity adjustment by potentiometer .
LED lights up when there is no rain output is high, rain drops up,output is  low, LED lights.
Raindrops and control panels are separate,  convenience of the line out. Large raindrops board, more conducive detected rain.
Board with positioning holes to facilitate installation
Control panel size: 3 * 1.6 MM
Large rain drop detection plate 5.4 * 4.0 MM
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1 description
Voltage: 5V
Power indicator, the output signal LED indicator.
TTL-level output, TTL output valid signal is low. Driving capability around 100MA, can directly drive relays, buzzer, small fan, and so on.
Sensitivity adjustment by potentiometer .
LED lights up when there is no rain output is high, rain drops up,output is  low, LED lights.
Raindrops and control panels are separate,  convenience of the line out. Large raindrops board, more conducive detected rain.
Board with positioning holes to facilitate installation
Control panel size: 3 * 1.6 MM
Large rain drop detection plate 5.4 * 4.0 MM

2 use
When connected to a 5V supply power lights, 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, you can connect the microcontroller to detect AD mouth ,detection of rain drop size.
DO TTL digital outputs can also be connected to the microcontroller to detect whether there is rain.