3 Review(s)

Features: â¢1. This is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. Use this sensor produced an automatic plant waterer device, so that the plants in your garden without people to manage. â¢2. Sensitivity adjustable the blue digital potentiometer adjustment (Figure) â¢3. Operating voltage 3.3V-5V â¢4. Module dual output mode, digital output, analog output more accurate. â¢5. With fixed bolt hole for easy installation â¢6. PCB size: 3cm * 1.6cm â¢7. Power indicator (red) and digital switching output indicator (green) â¢8. Comparator LM393 chip, stable Interface Description (4-wire) 1. VCC: .3 V-5V 2. GND: GND 3. DO: digital output interface (0 and 1) 4. AO: Analog Output Interface