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Teyleten Robot SongHe 5pcs Soil Hygrometer Humidity Detection Water Sensor Module YL-69 Sensor and HC-38 Module for Arduino
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About Teyleten Robot SongHe 5pcs Soil Hygrometer Humidity
1 This is a summary of the moisture sensor can be used to detect soil moisture, soil water when the module outputs a high level, whereas the output low. Using this sensor make an automatic watering system, so that your garden plants need people to manage. 2 adjustable sensitivity (shown in blue digital potentiometer adjustment) 4 Operating Voltage 3.3V-5V 5 module dual output mode, the digital output is simple, analog output is more accurate. 6 with fixed bolt hole for easy installation 7 small PCB board size: 3cm * 1.6cm Small plate interface specification (4-wire) 1 VCC 3.3V-5V external 2 GND GND External 3 DO small board digital output interface (0 and 1) 4 AO small plates analog output interface
