How to Make a Simple Proximity Sensor Using Arduino

Steps

  1. How to Make a Simple Proximity Sensor Using Arduino Picture 1
    Start off by setting aside the required materials
  2. How to Make a Simple Proximity Sensor Using Arduino Picture 2
    Prepare the IR LED by cutting a small piece of the electric tape and then wrapping it around the LED to form a tube as shown above.
  3. How to Make a Simple Proximity Sensor Using Arduino Picture 3
    Using the breadboard, jumper wires, resistor & LED's set up connection as follows.
    1. Connect the resistor from 5v to the positive( big pin) on the IR receiver.
    2. Connect all the IR LEDs to the 3.3v pin on the Arduino.
    3. Connect a jumper from A0 on the Arduino to the positive leg on the IR receiver.
    4. Connect all of the negatives of both the receiver and the LEDs to the GND on Arduino.
    5. Make sure none of the wires or LEDs are shorting as LEDs are very sensitive and can burn.
  4. How to Make a Simple Proximity Sensor Using Arduino Picture 4
    Build your code. This is a simple code that will print out the IR data on your computer screen, these variables can then be used to control almost anything. This code will allow for a simple analog read of the IR sensor.
    int IRreceiver = A0; // initialize
    How to Make a Simple Proximity Sensor Using Arduino Picture 5
    int IRval;
    How to Make a Simple Proximity Sensor Using Arduino Picture 6
    void setup()
    {
    pinMode(IRreceiver, INPUT); // declare its an input
    Serial.begin(9600); // speed at which the communication will happen
    }
    void loop()
    {
    int IRval= analogRead(IRreceiver); // declare data
    Serial.println(IRval); // print the data
    delay(10); } // add a delay to smoothen things out
  5. Make sure all the connections are safe and then upload the code to your Arduino. After it's uploaded bring up the serial communication.
  6. Examine the data. The data should vary as the distance between the sensor and the object varies.
  7. How to Make a Simple Proximity Sensor Using Arduino Picture 7
    Finished.
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