Template: Moisture Sensor Spec
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Revision as of 07:11, 9 October 2021 by Waveshare-eng11 (talk | contribs) (Created page with "==Features== *Fork-like design, make it easy to insert into the soil *Output voltage boosts along with the soil moisture level increases ==Specification== *Detection depth: 38...")
Features
- Fork-like design, make it easy to insert into the soil
- Output voltage boosts along with the soil moisture level increases
Specification
- Detection depth: 38mm
- Power: 2.0V ~ 5.0V
- Dimension: 20.0mm * 51.0mm
- Mounting holes size: 2.0mm
Pinouts
| PIN | Description |
| VCC | Power input (2.0V~5.0V) |
| GND | Ground |
| AOUT | Analog data output |
Working priciple
This module uses the current amplification principle of the triode. When soil moisture conducts the transistor's base and the positive pole, the triode will produce a certain size between the base and the emitter current, at this point, in the collector of a transistor between the emitter and it will certainly produce a magnification of current, the current through the resistance of the emitter voltage for the AD converter.