The project uses three infrared sensors as the marker beacon station, using the light-emitting secondary tube and the buzzer as a display. When an object reaches its range, the infrared sensor detects the title and signals to the Arduino UNO (microcontroller). When the signal reaches the Arduino UNO, the signal is processed according to the program installed. Then follow the program to run the display on the mark (three light-emitting diode bulbs (blue, amber, and white) and a buzzer for auditory indications). The display operates on the output of Arduino UNO to get the correct instruction.
Be
block diagram:
Hardware components:
Single-chip microcomputer
Digital infrared sensor
LED-5mm- red
Miniature speaker
Test plate
Circuit diagram:
Infrared proximity sensor connection:
1. Connect the output of the internal tag (sensor) to the number pin 6 of Arduino.
2. Connect the output of the intermediate tag (sensor) to Arduino's digital pin 7.
3. Connect the output of the external tag (sensor) to Arduino's digital pin 8
4. Connect the NRI output (no return indicator) to the number pin 10 of Arduino.
5. Connect the GRD (i.e., ground) of all sensors to Arduino's pin ground.
6. Connect all sensors to Arduino's +5 V pin
LED connection:
1. Connect the internal tag (LED) + VE to the Number Pin 4 of Arduino.
2. Connect the + VE of the Intermediate Tag (LED) to the Number Pin 2 of Arduino.
3. Connect the external tag (LED) + VE end to the Number Pin 3 of Arduino.
4. Connect all external tags (LEDs) to Arduino's pin grounding.
Buzzer connection:
1. Connect one end to the number pin 11 of Arduino.
1. Connect the other terminal to the PIN GRD of Arduino.
Beacon system:
Model design:
Code:
INT IRINNER = 6, IRMIDDLE = 7, Irouter = 8, irrunway = 10;
INT LEDINNER = 4, ledmiddle = 2, ledouter = 3;
Int sound = 11; // declared variables with the pin number of the components
INT Valin = 0, Valmd = 0, VALOT = 0, VALRUNWAY = 0;
INT CHECK1 = 0, Check2 = 0, CHECK3 = 0; // Declaration and initialization of variables
Void setup ()
{
Be
Serial.begin (9600);
Be
PinMode (Irinner, Input_pull); // Input Components
PinMode (Ledinner, Output); // Output Components
Be
PinMode (Irmiddle, Input_Pullup);
PINMODE (LEDMIDDLE, OUTPUT);
Be
Pinmode (Irouter, Input_Pullup);
PinMode (Ledouter, Output);
PinMode (irrunway, input_pullup);
Be
}
void loop ()
{
Be
Valin = DIGITALREAD (IRINNER); // Get the current state of the sensor (high or low)
Valmd = DIGITALREAD (IRMIDDLE);
Valot = DigitalRead (Irouter);
VALRUNWAY = DigitalRead (Irrunway);
IF (Valot == Low) // If there is an obstacle on the external sensor
{
DigitalWrite (Ledouter, HIGH); // LED bright
CHECK1 = 1;
}
Else
{
DigitalWrite (Ledouter, Low); // LED close
}
Be
IF (Valmd == LOW)
{
DigitalWrite (Ledmiddle, HIGH);
CHECK1 = 0;
CHECK2 = 1;
}
Else
{
DigitalWrite (LedMiddle, Low);
}
Be
Be
IF (Valin == LOW)
{
DigitalWrite (Ledinner, HIGH);
CHECK3 = 1;
CHECK2 = 0;
}
Else
{
DigitalWrite (Ledinner, Low);
}
IF (VALRUNWAY == LOW)
{
CHECK3 = 0;
DELAY (6000); // Program execution delay 6 seconds
}
Be
IF (Check1 == 1) //
{
Tone (Sound, 1000, 350); // Speaker or buzzer sounds
DELAY (500);
}
IF (Check2 == 1)
{
TONE (Sounds, 4000, 100);
DELAY (150);
TONE (Sounds, 1000, 150);
DELAY (300);
}
IF (Check3 == 1)
{
Tone (Sound, 4000, 100);
DELAY (150);
}
Be
}
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