NodeMCU ESP8266 สัปดาห์ที่ 9
ระบบจอดรถอัจฉริยะด้วย IoT
นี่คือระบบจอดรถอัจฉริยะโดยใช้ IoT ที่เราสร้างขึ้นโดยใช้ nodemcu และเซ็นเซอร์อัลตราโซนิก
//TECHATRONIC.COM
// BLYNK LIBRARY
// https://github.com/blynkkk/blynk-library
// ESP8266 LIBRARY
// https://github.com/ekstrand/ESP8266wifi
#define TRIGGER D0
#define ECHO D2
// NodeMCU Pin D0 > TRIGGER | Pin D2 > ECHO
#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "Whobi6tSCicbj4W654WdBeo7O4D6Ajw4"; //Auth code sent via Email
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "DESKTOP"; //Wifi name
char pass[] = "asdfghjkl"; //Wifi Password
void setup() {
Serial.begin (9600);
Blynk.begin(auth, ssid, pass);
pinMode(TRIGGER, OUTPUT);
pinMode(ECHO, INPUT);
pinMode(BUILTIN_LED, OUTPUT);
}
void loop() {
long duration, distance;
digitalWrite(TRIGGER, LOW);
delayMicroseconds(2);
digitalWrite(TRIGGER, HIGH);
delayMicroseconds(10);
digitalWrite(TRIGGER, LOW);
duration = pulseIn(ECHO, HIGH);
distance = (duration/2) / 29.1;
if (distance <=200) {
Blynk.virtualWrite(V0, 255);
}
else {
Blynk.virtualWrite(V0, 0);
}
if (distance <= 35) {
Blynk.virtualWrite(V1, 255);
}
else {
Blynk.virtualWrite(V1, 0);
}
if (distance <= 30) {
Blynk.virtualWrite(V2, 255);
}
else {
Blynk.virtualWrite(V2, 0);
}
if (distance <= 25) {
Blynk.virtualWrite(V3, 255);
}
else {
Blynk.virtualWrite(V3, 0);
}
if (distance <= 20) {
Blynk.virtualWrite(V4, 255);
}
else {
Blynk.virtualWrite(V4, 0);
}
Serial.print(distance);
Serial.println("Centimeter:");
Blynk.virtualWrite(V5, distance);
delay(200);
Blynk.run();
Serial.print(distance);
Serial.println("Centimeter:");
Blynk.virtualWrite(V6, distance);
delay(100);
Blynk.run();
}
เว็บ https://www.hackster.io/electronicprojects/smart-parking-system-using-iot-a43ed6
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