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SKU:21823741
The comparator output, the signal is clean, the waveform is good, the driving ability is strong, more than 15mA. Adjust sensitivity with potentiometer. Voltage: 5V. Output form: digital switch output (0 and 1) and analog AO voltage output with fixed bolt holes for easy installation. Usage: Connected to 5 v power supply power lights, no water droplets on induction plate, the DO output for the high level, switch lights out, a drop of water drops, the DO output for the low level, switch indicator,brush away the water droplets, return to again, the output high level state. AO analog output, can be connected to the microcontroller AD mouth drops of rainfall in the above size. DO TTL digital output can also be connected microcontroller detecting whether it will rain. Package include: 6 x Rain drops sensor board 6 x Control board 6 x Cable wires
The sensor USES the high quality FR - 04 double material, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance, with potentiometer sensitivity adjustment; has a fixed bolt hole, convenient installation
The LM393 use of wide voltage comparator, signal clean, good waveform, driving ability is strong, for more than 15 mA
Rain drops sensor module adjust sensitivity by potentiometer, the working voltage of 3.3 V to 5 V; output format digital switch output (0 and 1) and analog AO voltage output
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.
Easy to use Connected to 5 v power supply power lights, no water droplets on induction plate, the DO output for the high level, switch lights out, a drop of water drops, the DO output for the low level, switch indicator,brush away the water droplets, return to again, the output high level state.
This tested OK in a cup of water. I now have the first one deployed in my water heater leak pan, connected to an D1-mini, which will send me an alarm if water ever detected in the pan. Hopefully that's years, and the sensor still has integrity that long...
