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Code.ino
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Code.ino
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#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
String ssid = "Simulator Wifi";
String password = "";
String host = "api.thingspeak.com";
const int httpPort = 80;
String uri= "/update?api_key=ZXAQDPJSA6KLI8IG&field1=";
int red = 13;
int green = 6;
int yellow = 7;
int buzzer = 10;
int value=0;
int echoPin = 8;
int trigPin = 9;
int distance;
int setupESP8266(void) {
Serial.begin(115200);
Serial.println("AT");
delay(10);
if (!Serial.find("OK")) return 1;
Serial.println("AT+CWJAP=\"" + ssid + "\",\"" + password + "\"");
delay(10);
if (!Serial.find("OK")) return 2;
Serial.println("AT+CIPSTART=\"TCP\",\"" + host + "\"," + httpPort);
delay(50);
if (!Serial.find("OK")) return 3;
return 0;
}
void anydata(void) {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
distance = 0.01723 * pulseIn(echoPin, HIGH);
String httpPacket = "GET " + uri + String(distance) + " HTTP/1.1\r\nHost: " + host + "\r\n\r\n";
int length = httpPacket.length();
Serial.print("AT+CIPSEND=");
Serial.println(length);
delay(10);
Serial.print(httpPacket);
delay(10);
if (!Serial.find("SEND OK\r\n")) return;
}
void setup()
{
Serial.begin(9600);
setupESP8266();
lcd.begin(16, 2);
pinMode(red, OUTPUT);
pinMode(yellow, OUTPUT);
pinMode(green, OUTPUT);
pinMode(trigPin, OUTPUT); // Sets the trigPin as an OUTPUT
pinMode(echoPin, INPUT); // Sets the echoPin as an INPUT
}
void loop()
{
lcd.setCursor(0,0);
lcd.print("");
lcd.setCursor(0,1);
lcd.print("");
anydata();
delay(500);
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
distance = 0.01723 * pulseIn(echoPin, HIGH);
if (distance > 250) {
digitalWrite(red, LOW);
digitalWrite(yellow, LOW);
digitalWrite(green, LOW);
}
if (distance <= 250 && distance > 150) {
digitalWrite(red, LOW);
digitalWrite(yellow, LOW);
digitalWrite(green, HIGH);
lcd.setCursor(0,0);
lcd.print("");
lcd.setCursor(0,1);
lcd.print("");
lcd.setCursor(0,0);
lcd.print("DUSTBIN EMPTY");
}
if (distance <= 150 && distance > 50) {
digitalWrite(red, LOW);
digitalWrite(yellow, HIGH);
digitalWrite(green, LOW);
lcd.setCursor(0,0);
lcd.print("");
lcd.setCursor(0,1);
lcd.print("");
lcd.setCursor(0,0);
lcd.print("HALF_FILLED");
}
if (distance < 50) {
digitalWrite(red, HIGH);
digitalWrite(yellow, LOW);
digitalWrite(green, LOW);
lcd.setCursor(0,0);
lcd.print("");
lcd.setCursor(0,1);
lcd.print("");
lcd.setCursor(0,0);
lcd.print("DUSTBIN FULL");
}
}