คือผมอยากเพิ่มปุ่มใน BLYNK
โค้ด
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_Sensor.h>
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
#define BLYNK_TEMPLATE_ID "TMPLIiNLjBWF"
#define BLYNK_DEVICE_NAME "Temperature and Humidity"
#define BLYNK_FIRMWARE_VERSION "0.1.0"
#define BLYNK_PRINT Serial
#define APP_DEBUG
#include "BlynkEdgent.h"
#include "DHT.h"
#define DHTPIN 27
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
#define CH1 14
float t;
float h;
int sw1 = 26 ; //main
int sw2 = 25 ; //auto
int sw3 = 33 ; //on
int sw4 = 32 ; //off
int state_mode = 1; //state_mode
int state_motor = 1; //state_motor
BlynkTimer timer;
void sendSensor(){
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t)) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
Blynk.virtualWrite(V0,t);
Blynk.virtualWrite(V1,h);
}
void setup()
{
pinMode(sw1, INPUT_PULLUP);
pinMode(sw2, INPUT_PULLUP);
pinMode(sw3, INPUT_PULLUP);
pinMode(sw4, INPUT_PULLUP);
pinMode (CH1,OUTPUT);
Serial.begin(115200);
dht.begin();
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
Serial.println(F("SSD1306 allocation failed"));
for(;;);
}
delay(2000);
display.clearDisplay();
display.setTextColor(WHITE);
BlynkEdgent.begin();
timer.setInterval (2000L, sendSensor);
}
void loop() {
delay(1000);
float h = dht.readHumidity();
float t = dht.readTemperature();
//=============================================================
if (digitalRead(sw1) == 0) { //man
state_mode = 0;
}
if (digitalRead(sw2) == 0) { //auto
state_mode = 1;
}
if (digitalRead(sw3) == 0) { //ON
state_motor = 0;
}
if (digitalRead(sw4) == 0) { //OFF
state_motor = 1;
}
//=============================================================
if (state_mode == 0 && state_motor == 0 ) {
digitalWrite(CH1, LOW);
Serial.println(" Mode Manual PUMP_ON");
}
if (state_mode == 0 && state_motor == 1 ) {
digitalWrite(CH1, HIGH);
Serial.println(" Mode Manual PUMP_OFF");
}
if (state_mode == 1 ) {
if (t >= 30 && t < 32) {
digitalWrite(CH1, LOW);
Serial.println("Mode AUTO Pump_ON");
}
else
{
digitalWrite(CH1, HIGH);
Serial.println("Mode AUTO Pump_OFF");
}
}
//===============================================
if (isnan(h) || isnan(t)) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
// clear display
display.clearDisplay();
// display temperature
display.setTextSize(1);
display.setCursor(0,0);
display.print("Temperature: ");
display.setTextSize(2);
display.setCursor(0,10);
display.print(t);
display.print(" ");
display.setTextSize(1);
display.cp437(true);
display.write(167);
display.setTextSize(2);
display.print("C");
// display humidity
display.setTextSize(1);
display.setCursor(0, 35);
display.print("Humidity: ");
display.setTextSize(2);
display.setCursor(0, 45);
display.print(h);
display.print(" %");
display.display();
BlynkEdgent.run();
timer.run();
}
