RFID Based Smart Traffic Signal for Ambulance

thingiverse

Hello World! This is a RFID-Based Smart Traffic Signal for Ambulances Project. With the help of an RFID tag, when an ambulance needs to pass through signals, the signal turns green while keeping in mind all other signals at the junction turn red. This allows ambulances to pass through without waiting for a green light like in heavily populated areas or traffic zones. The program is written in Arduino IDE and is given below. Parts Needed for Signal (Download from Thingiverse Link: https://www.thingiverse.com/thing:3235977/edit) 1 x Base 1 x Cap 1 x LED Holder 1 x LED Holder Top Components Required: Arduino Uno - 1 No. EM18 RFID Reader - 1 No. RFID Tag - 1 No. (Your Required Number) LED Red, Green & Yellow - Each 1 No. Wire Length Required Android App Download from Below Link: https://drive.google.com/file/d/1qHocOYj0XdJPhKepeiy6cKMNSKDOO9Ci/view?usp=sharing Arduino Program: /* RFID-Based Smart Traffic Signal for Ambulances by Aakaar Lab */ int yellow_led = 11, red_led = 12, green_led = 10, count = 0, countp; char* rfid_id[] = {"270021BEBE06", "270021BCFE44"}; char* names[] = {"Ambulance-1", "Ambulance-1"}; int presence[2]; void setup() { Serial.begin(9600); pinMode(yellow_led, OUTPUT); pinMode(red_led, OUTPUT); pinMode(green_led, OUTPUT); } void loop() { int i; char response[12]; int ch; delay(200); signalchange(); if (Serial.available() > 0) { i = 0; do { while (Serial.available() <= 0); response[i] = Serial.read(); Serial.print(response[i]); i++; } while (i < 12); response[i] = '\0'; if (strcmp(response, rfid_id[0]) == 0) // User1 RFID Received { digitalWrite(red_led, LOW); digitalWrite(green_led, HIGH); } else if (strcmp(response, rfid_id[1]) == 0) // User2 RFID Received { digitalWrite(red_led, LOW); digitalWrite(green_led, HIGH); } delay(5000); } if (countp == 1) { count++; } if (countp == 0) { count--; } } void signalchange() { if (count == 0) { digitalWrite(green_led, LOW); digitalWrite(yellow_led, HIGH); delay(1000); digitalWrite(yellow_led, LOW); digitalWrite(red_led, HIGH); countp = 1; } else if (count == 50) { digitalWrite(red_led, LOW); digitalWrite(yellow_led, HIGH); delay(1000); digitalWrite(yellow_led, LOW); digitalWrite(green_led, HIGH); countp = 0; } } https://www.youtube.com/watch?v=hcAJ9vwsDgM