Package
Contains
1 Piece -
Use this
sensor produced an automatic watering device, so that the plants in your garden
need not to manage.
2 adjustable
sensitivity (blue digital potentiometer adjustment)
4 Operating
voltage 12v
5 relay
output, more convenient to control.
6 with fixed
bolt hole for easy installation
7 board PCB
size: 3cm * 1.6cm
8 power
indicator (red) and relay and indicator (green)
9 comparator
LM393 chip, stable
Two small plates Interface Description (2-wire)
VCC external
12v
2 GND
external GND
Three use
1 soil
moisture module is most sensitive to environmental humidity is generally used
to detect the moisture content of the soil.
2 module in the soil moisture of less than the set threshold value, the status of the relays in a disconnected state, the output performance: normally open and public
open, normally closed, and public conduction; exceeds the threshold value is set when the soil moisture relay state absorption and status, the performance of the
output: normally open with the public on pass, normally closed and public disconnect according to this principle embedded in the own system. Relay wiring parameters:
AC voltage 250V, AC current maximum 10A
maximum 30V DC voltage, DC current up to 10A
Fourth
shipping list
1 as shown
in a set of soil moisture detection module finished board (including the
detection plate and soil humidity probe)
2 20cm DuPont line 2 for easy wiring;
To extend the life of the probe tips: If the buyer needs to delay the life of the soil probe, the entire probe with a soldering iron plus solder, so that
the surface
of the probe through holes are filled with solder, the life of the probe will
be greatly enhanced .