Soil Moisture Sensor Module เซ็นเซอร์วัดความชื้นในดิน สำหรับ Arduino

Specifications The specifications of the soil moisture sensor FC-28 are as follows Input Voltage 3.3 – 5V Output Voltage 0 – 4.2V Input Current 35mA Output Signal Both Analog and Digital Pin Out – Soil Moisture Sensor The soil Moisture sensor FC-28 has four pins VCC: For power A0: Analog output D0: Digital output GND: Ground //////////////////////////////////////////////////////////// const int sensor_pin = A1; /* Soil moisture sensor O/P pin */ void setup() { Serial.begin(9600); /* Define baud rate for serial communication */ } void loop() { float moisture_percentage; int sensor_analog; sensor_analog = analogRead(sensor_pin); moisture_percentage = ( 100 - ( (sensor_analog/1023.00) * 100 ) ); Serial.print("Moisture Percentage = "); Serial.print(moisture_percentage); Serial.print("%\n\n"); delay(1000); }