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Esp8266EasyIoT/examples/esp8266_irrigator1/esp8266_irrigator1.ino
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/* | ||
V1.0 - first version | ||
Created by Igor Jarc <[email protected]> | ||
See http://iot-playground.com for details | ||
Do not contact avtor dirrectly, use community forum on website. | ||
This program is free software; you can redistribute it and/or | ||
modify it under the terms of the GNU General Public License | ||
version 2 as published by the Free Software Foundation. | ||
*/ | ||
#include <Esp8266EasyIoT.h> | ||
#include <SoftwareSerial.h> | ||
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Esp8266EasyIoT esp; | ||
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SoftwareSerial serialEsp(10, 11); | ||
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#define MS_IN_SEC 1000 // 1S | ||
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// irrigator state | ||
typedef enum { | ||
s_idle = 0, // irrigation idle | ||
s_irrigation_start = 1, // start irrigation | ||
s_irrigation = 2, // irrigate | ||
s_irrigation_stop = 3, // irrigation stop | ||
} e_state; | ||
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#define CHILD_ID_SWITCH_IRRIGATE 0 | ||
#define CHILD_ID_AUTO_MODE 1 | ||
#define CHILD_ID_SOIL_HUMIDITY 2 | ||
#define CHILD_ID_SOIL_HUMIDITY_AO 3 | ||
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#define HUM_ANALOG_PIN A0 | ||
#define MOTOR_PUMP_PIN 3 | ||
#define ESP_RESET_PIN 2 | ||
#define ESP_ENABLE_PIN 5 | ||
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#define MAX_ANALOG_VAL 1023 | ||
#define MIN_ANALOG_VAL 430 | ||
#define IRRIGATION_TIME 15 // irrigation time in sec | ||
#define IRRIGATION_PAUSE_TIME 300 // irrigation pause time in sec - only for auto irrigator | ||
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int lastAnalogReading; | ||
unsigned long startTime; | ||
bool pumpMotor; | ||
int soilHum; | ||
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int state; | ||
bool autoMode; | ||
int irrigatorCounter; | ||
int soilHumidityTreshold; | ||
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Esp8266EasyIoTMsg msgHum(CHILD_ID_SOIL_HUMIDITY, V_HUM); | ||
Esp8266EasyIoTMsg msgMotorPump(CHILD_ID_SWITCH_IRRIGATE, V_DIGITAL_VALUE); | ||
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void setup() | ||
{ | ||
state = s_idle; | ||
pumpMotor = false; | ||
startTime = millis(); | ||
soilHum = -1; | ||
autoMode = 0; | ||
soilHumidityTreshold = 0; | ||
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// ESP enable for custom board | ||
pinMode(ESP_ENABLE_PIN, OUTPUT); | ||
digitalWrite(ESP_ENABLE_PIN, HIGH); | ||
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serialEsp.begin(9600); | ||
Serial.begin(115200); | ||
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Serial.println("EasyIoTEsp init"); | ||
esp.begin(incomingMessage, ESP_RESET_PIN, &serialEsp, &Serial); | ||
//esp.begin(incomingMessage, 3, &serialEsp); | ||
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pinMode(MOTOR_PUMP_PIN, OUTPUT); | ||
digitalWrite(MOTOR_PUMP_PIN, LOW); | ||
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esp.present(CHILD_ID_SWITCH_IRRIGATE, S_DIGITAL_OUTPUT); // irrigation mottor switch | ||
esp.present(CHILD_ID_AUTO_MODE, S_DIGITAL_OUTPUT); // irrigator mode - 1 auto, 0 - manual | ||
esp.present(CHILD_ID_SOIL_HUMIDITY, S_HUM); // soil humidity | ||
esp.present(CHILD_ID_SOIL_HUMIDITY_AO, S_HUM_AO); // soil humidity treshold | ||
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// request treshold humidity | ||
esp.request(CHILD_ID_SOIL_HUMIDITY_AO, V_HUM); | ||
// request auto mode | ||
esp.request(CHILD_ID_AUTO_MODE, V_DIGITAL_VALUE); | ||
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// read AI value | ||
lastAnalogReading = analogRead(HUM_ANALOG_PIN); | ||
} | ||
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void loop() | ||
{ | ||
while(!esp.process()); | ||
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if (IsTimeout()) | ||
{ | ||
startTime = millis(); | ||
// process every second | ||
int aireading = analogRead(HUM_ANALOG_PIN); | ||
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Serial.println("Analog value: "); | ||
Serial.println(aireading); | ||
// filter | ||
lastAnalogReading += (aireading - lastAnalogReading) / 10; | ||
Serial.println(lastAnalogReading); | ||
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// calculate soil humidity in % | ||
int newSoilHum = map(lastAnalogReading, MIN_ANALOG_VAL, 1023, 100, 0); | ||
Serial.println(newSoilHum); | ||
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// limit to 0-100% | ||
newSoilHum = max(0, newSoilHum); | ||
newSoilHum = min(100, newSoilHum); | ||
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// report soil humidity if changed | ||
if (soilHum != newSoilHum) | ||
{ | ||
soilHum = newSoilHum; | ||
esp.send(msgHum.set(soilHum)); | ||
} | ||
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// irrigator state machine | ||
switch(state) | ||
{ | ||
case s_idle: | ||
if (irrigatorCounter <= IRRIGATION_PAUSE_TIME) | ||
irrigatorCounter++; | ||
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if (irrigatorCounter >= IRRIGATION_PAUSE_TIME && autoMode) | ||
{ | ||
if (soilHum <= soilHumidityTreshold) | ||
state = s_irrigation_start; | ||
} | ||
break; | ||
case s_irrigation_start: | ||
irrigatorCounter = 0; | ||
digitalWrite(MOTOR_PUMP_PIN, HIGH); | ||
esp.send(msgMotorPump.set((uint8_t)1)); | ||
state = s_irrigation; | ||
break; | ||
case s_irrigation: | ||
if (irrigatorCounter++ > IRRIGATION_TIME) | ||
state = s_irrigation_stop; | ||
break; | ||
case s_irrigation_stop: | ||
irrigatorCounter = 0; | ||
state = s_idle; | ||
esp.send(msgMotorPump.set((uint8_t)0)); | ||
digitalWrite(MOTOR_PUMP_PIN, LOW); | ||
break; | ||
} | ||
} | ||
} | ||
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void incomingMessage(const Esp8266EasyIoTMsg &message) { | ||
// We only expect one type of message from controller. But we better check anyway. | ||
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Serial.println(""); | ||
Serial.print("Incoming change for sensor:"); | ||
Serial.println(message.sensor); | ||
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if (message.type == V_DIGITAL_VALUE) { | ||
// process mode commnd | ||
if (message.sensor == CHILD_ID_AUTO_MODE) | ||
autoMode = message.getBool(); | ||
// process motor switch command | ||
else if (message.sensor == CHILD_ID_SWITCH_IRRIGATE) | ||
{ | ||
if (message.getBool()==true) | ||
state = s_irrigation_start; | ||
else | ||
state = s_irrigation_stop; | ||
} | ||
}else if (message.type == V_HUM && message.sensor == CHILD_ID_SOIL_HUMIDITY_AO) { | ||
// set humidity treshold for automatic irrigation | ||
soilHumidityTreshold = message.getInt(); | ||
} | ||
} | ||
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boolean IsTimeout() | ||
{ | ||
unsigned long now = millis(); | ||
if (startTime <= now) | ||
{ | ||
if ( (unsigned long)(now - startTime ) < MS_IN_SEC ) | ||
return false; | ||
} | ||
else | ||
{ | ||
if ( (unsigned long)(startTime - now) < MS_IN_SEC ) | ||
return false; | ||
} | ||
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return true; | ||
} |
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