Quantity	1 Piece
Color	Others、Black + silver
Material	PCB
English Manual / Spec	Yes
Download Link	http://pan.baidu.com/share/link?shareid=47615182&uk=2164862926
Certification	N/A
Packing List	1 x Raindrop module 1 x HL-01 module 5 x Jumper wires (18cm)

Production: 

- High quality FR-04 dual sided material、 ultra area 5.0 x 4.0cm. Nickel-plated surface、 with antioxidant、 electrical conductivity、 and superior lifetime performance

- Comparator output、 clear signal、 and nice waves、 powerful driver over 15mA

- Equipped with potentiometer to adjust the sensitivity

- Working voltage: 3.3V~5V

- Output method: Digital switch output (0 / 1) and analog AO voltage output

- Easy installation with fixed screw hole

- PCB size: 3.2cm x 1.4cm

- Uses wide voltage and LM393 comparator 

Features: 

- When connected to a 5V supply power lights、 no water droplets on sensor board 、 DO output is high; Switch lights off、 drop a drop of water、 DO output is low、 the switch indicator light.

- Clean the water droplets、 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.

Connection: 

VCC: Power positive (3~5V)

GND: Power negative 

DO: TTL switch signal output 

AO: Analog signal output 

Dimensions: 2.13 in x 1.57 in x 0.28 in (5.4 cm x 4.0 cm x 0.7 cm)
Weight: 0.46 oz (13 g)