คือผมใช้ Soilsensor 4 ตัว แล้ว สร้าง function อ่านค่า sensor ทั้ง 4 ตัว หาค่าเฉลี่ยแล้ว return ออกมา
สร้างตัวแปร()averagesoilsensorValue มารับ แต่ว่าค่าที่ออกมา ไม่ตรง กับตัวแปร(SoilSensorValue)ที่ return ออกมา
ตัวจะเอาค่า return (SoilSensorValue)ไปใช้กับ function อื่น
int averagesoilsensorValue = ReadsoilsensorValue();
const int SoilSensorValue;
void setup(){
timer.setInterval(2000, sendSensor);
}
void loop(){
}
int ReadsoilsensorValue(){
static unsigned long timer1 = millis();
const unsigned long period = 1000;
if(millis() - timer1 >= period){
timer1 = millis();
int SoilSensorValue_1 = analogRead(SoilSensor_1);
int SoilSensorValue_2 = analogRead(SoilSensor_2);
int SoilSensorValue_3 = analogRead(SoilSensor_3);
int SoilSensorValue_4 = analogRead(SoilSensor_4);
int mapSoilSensorValue_1 = map(SoilSensorValue_1, 0, 4095, 100, 0);
int mapSoilSensorValue_2 = map(SoilSensorValue_2, 0, 4095, 100, 0);
int mapSoilSensorValue_3 = map(SoilSensorValue_3, 0, 4095, 100, 0);
int mapSoilSensorValue_4 = map(SoilSensorValue_4, 0, 4095, 100, 0);
// Serial.print("Soil_1 :"); Serial.print(mapSoilSensorValue_1); Serial.println("%");
// Serial.print("Soil_2 :"); Serial.print(mapSoilSensorValue_2); Serial.println("%");
// Serial.print("Soil_3 :"); Serial.print(mapSoilSensorValue_3); Serial.println("%");
// Serial.print("Soil_4 :"); Serial.print(mapSoilSensorValue_4); Serial.println("%");
SoilSensorValue = ((mapSoilSensorValue_1 + mapSoilSensorValue_2 + mapSoilSensorValue_3 + mapSoilSensorValue_4)/ 4) ;
Serial.print("SoilAverage : "); Serial.print(SoilSensorValue); Serial.println("%");
return SoilSensorValue;
}
}
void sendSensor(){
Blynk.virtualWrite(Widget_SoilValue, averagesoilsensorValue);
}
ค่าที่ได้จากตัวแปร int averagesoilsensorValue;
ค่าที่ได้จากตัวแปร int SoilSensorValue;
อันนี้ code เต็มๆ
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
char auth[] = "";
char ssid[] = "55";
char pass[] = "12345678";
char server[] = "oasiskit.com";
unsigned port = 8080;
BlynkTimer timer;
BLYNK_CONNECTED(){
Blynk.syncAll();
}
//ปุ่ม Blynk
#define Widget_Btn_00 V0 //ปุ่ม Auto/Manual
#define Widget_Btn_01 V1 //Terminal
#define Widget_Btn_Pump V2 //ปุ่ม เปิด-ปิด ปั๊มน้ำ
#define Widget_SoilValue V4 //แสดงค่าความชื่นในดิน
//สถานะปุ่ม Blynk
#define Widget_LED_Pump V3 //ไฟสถานะปั๊มน้ำ
WidgetLED LedBlynkPump(Widget_LED_Pump);
//Pin INPUT
#define SoilSensor_1 36
#define SoilSensor_2 39
#define SoilSensor_3 34
#define SoilSensor_4 35
//Pin OUTPUT
#define Relay1_pump 32
//ประกาศตัวแปร
int averagesoilsensorValue = ReadsoilsensorValue(); //ค่าเฉลี่ย soilsensor คิดเป็นเปอร์เซน
int SoilSensorValue;
void setup(){
Serial.begin(115200);
// WiFi.begin(ssid, pass);
// while (WiFi.status() != WL_CONNECTED){
// delay(500);
// Serial.print(".");
// }
Serial.println("WiFi connected");
Serial.print("Connecting to ");
Serial.println(ssid);
Blynk.begin(auth, ssid, pass, server, port);
//pinMode INPUT
pinMode(SoilSensor_1, INPUT);
pinMode(SoilSensor_2, INPUT);
pinMode(SoilSensor_3, INPUT);
pinMode(SoilSensor_4, INPUT);
//pinMode OUTPUT
pinMode(Relay1_pump, OUTPUT);
//เรียกใช้ Function
timer.setInterval(2000, sendSensor);
timer.setInterval(2000, AutoSoilWater);
//timer.setInterval(2000, averagesoilsensorValue);
}
void loop(){
Serial.print("SoilAverage : "); Serial.print(averagesoilsensorValue); Serial.println("%");
Blynk.run();
timer.run();
}
void sendSensor(){
Blynk.virtualWrite(Widget_SoilValue, averagesoilsensorValue);
}
BLYNK_WRITE(Widget_Btn_Pump){
int value = param.asInt();
if(value== 1){
digitalWrite(Relay1_pump, HIGH);
LedBlynkPump.on();
}else{
digitalWrite(Relay1_pump, LOW);
LedBlynkPump.off();
}
}
int ReadsoilsensorValue(){
static unsigned long timer1 = millis();
const unsigned long period = 1000;
if(millis() - timer1 >= period){
timer1 = millis();
int SoilSensorValue_1 = analogRead(SoilSensor_1);
int SoilSensorValue_2 = analogRead(SoilSensor_2);
int SoilSensorValue_3 = analogRead(SoilSensor_3);
int SoilSensorValue_4 = analogRead(SoilSensor_4);
int mapSoilSensorValue_1 = map(SoilSensorValue_1, 0, 4095, 100, 0);
int mapSoilSensorValue_2 = map(SoilSensorValue_2, 0, 4095, 100, 0);
int mapSoilSensorValue_3 = map(SoilSensorValue_3, 0, 4095, 100, 0);
int mapSoilSensorValue_4 = map(SoilSensorValue_4, 0, 4095, 100, 0);
// Serial.print("Soil_1 :"); Serial.print(mapSoilSensorValue_1); Serial.println("%");
// Serial.print("Soil_2 :"); Serial.print(mapSoilSensorValue_2); Serial.println("%");
// Serial.print("Soil_3 :"); Serial.print(mapSoilSensorValue_3); Serial.println("%");
// Serial.print("Soil_4 :"); Serial.print(mapSoilSensorValue_4); Serial.println("%");
SoilSensorValue = ((mapSoilSensorValue_1 + mapSoilSensorValue_2 + mapSoilSensorValue_3 + mapSoilSensorValue_4)/ 4) ;
//Serial.print("SoilAverage : "); Serial.print(SoilSensorValue); Serial.println("%");
return SoilSensorValue;
}
}
void AutoSoilWater(){
if(averagesoilsensorValue < 65 ){
if(Widget_Btn_Pump == 1){
digitalWrite(Relay1_pump, HIGH);
Blynk.virtualWrite(Widget_Btn_Pump, 1);
}
else if(averagesoilsensorValue > 70){
digitalWrite(Relay1_pump, LOW);
Blynk.virtualWrite(Widget_Btn_Pump, 0);
}
}
}
