Created
April 1, 2018 15:51
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Code for our garden automation project
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| #include <dht.h> | |
| // For DHT11 sensor | |
| dht DHT; | |
| // PINS | |
| #define DHT11_PIN A7 | |
| #define SMOISTURE_PIN A0 | |
| #define PDIODE_PIN A1 | |
| #define LED_PIN D5 | |
| #define MOTOR_PIN | |
| // Thresholds | |
| #define LIGHT_THRESHOLD 2 | |
| #define TEMP_THRESHOLD 28 | |
| #define MOISTURE_THRESHOLD 850 | |
| void setup() { | |
| Serial.begin(9600); | |
| // Configure these pins as output | |
| pinMode(LED_PIN, OUTPUT); | |
| pinMode(MOTOR_PIN, OUTPUT); | |
| } | |
| void loop() { | |
| // read the input on analog pin 0: | |
| int moistureValue = analogRead(A0); | |
| int chk = DHT.read11(DHT11_PIN); | |
| int tempValue = DHT.temprature; | |
| int pdiodeValue = analogRead(PDIODE_PIN); | |
| float light = pdiodeValue / 1024.0 * 5.0; | |
| // Turn on LED if light under LIGHT_THRESHOLD | |
| if( light < LIGHT_THRESHOLD ) | |
| digitalWrite(LED_PIN, HIGH); | |
| else | |
| digitalWrite(LEG_PIN, LOW); | |
| // Turn on motors if temp value is greater than TEMP_THRESHOLD | |
| // and moistureValue greater than MOISTURE_THRESHOLD | |
| if( tempValue > TEMP_THRESHOLD || moistureValue > MOISTURE_THRESHOLD ) | |
| analogWrite(MOTOR_PIN, 64); | |
| else | |
| analogWrite(MOTOR_PIN, 0); | |
| delay(1000); | |
| } | |
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