If you have a garden, you must need this soil detector
Parameter:
Name: Soil Moisture Sensor
Voltage: 3.3-12V DC
Current:Work:
Interface: +/- DO AO
Doing digital/AO analog
Uses: Detects soil moisture
Principle: The soil temperature probe detects humidity and the voltage comparison determines the size of humidity. If the humidity is greater than the set value, the DO will output a low level.
Instructions:
1. Connect to the positive pole of the power supply and connect to the negative pole of the power supply. Please do not reverse it, otherwise you can burn the chip. After the power is connected, the [P] power indicator will light up, the module will work normally.
2. Adjust the blue potentiometer clockwise / counterclockwise to increase the probe detection sensitivity. For examples of thermal sensors, the default is 25 □ trigger, [DO] output low level is effective. After adjusting clockwise, the temperature is lower than 25 degrees Celsius and the temperature can be triggered. Counterclockwise exceeds 25 degrees Celsius
3. If the potentiometer is adjusted clockwise until the [S] output indicator is turned on, it means that the adjustment range is beyond the threshold, and if adjusted counterclockwise, it cannot exceed the threshold. When youre in midway, you cannot exceed the threshold value, otherwise it will not be used normally. Potentiometer adjustment is only the [DO] port and does not affect the [AO] output.
4. [AO] output is analog volume (voltage), can be detected directly through AD port of single chip microcomputer.
Board Size: 1.4 x 0.6 x 0.4 inches (35.5 x 15 x 9.2
Probe Size: 4.3 x 0.7 x 0.3 inches (109 x 18.7 x
Probe Cable Length: 46.1 inches (117 cm).
Kit Weight: 0.7 oz (20 g).
Package Contents:
1 x Soil Moisture Sensor
1 x Sensor Probe
1 x Pin header.
If you have any questions, please feel free to contact our customer service.