Data Sheet
Guide V1.0
Email: keen@elecrow.com Web: www.elecrow.com ---Designed by Elecrow Keen
49
Breadboard
1
Jumper wires
Several
Connection diagram
Tips: P4, P5 and P6 is null.
Water sensor
- -> GND
+ -> 5V0
S -> AINT0
PCF 8591
VCC -> 5V0
GND -> GND
SDA -> SDA1
SCL -> SCL1
Compile and Run
Tips: Refer to the operation demo (Step4 to Step7).
Application effect
Running the program, put the water level sensor enter water and you will see
the analog value of water sensor.