Using the Ping))) sensor with an ATmega 328p microcontroller

Comments

• Franklin Posts: 4,747

  2013-11-29 13:21 edited 2013-11-29 13:21

  There is code to read the ping with Arduino here http://arduino.cc/en/Tutorial/ping It should be a start to writing 328 code if you are not using an arduino. To blink the led you need to test for the distance and when it reaches 20cm call some code to blink the LED.
• mirzam Posts: 2

  2013-11-30 08:41 edited 2013-11-30 08:41

  problem is that I don't know how to time a puls..
• Mike Green Posts: 23,101

  2013-11-30 13:45 edited 2013-11-30 13:45

  We can't really help you with that level of detail on programming a non-Parallax product. There must be some function calls in one of the libraries available to you for your embedded C compiler that will do the sort of timing you need. The Arduino library has a pulse-in function that does this. You might get some ideas from that.
• Chris Savage Parallax Engineering Posts: 14,406

  2013-12-03 15:18 edited 2013-12-03 15:18

  I updated the subject of your thread to indicate the help you actually need. The original subject gave the impression you may have had a malfunctioning PING))) Sensor.
• jtilghman Posts: 67

  2014-01-06 12:19 edited 2014-01-06 12:19

  Franklin wrote: »

  There is code to read the ping with Arduino here http://arduino.cc/en/Tutorial/ping It should be a start to writing 328 code if you are not using an arduino. To blink the led you need to test for the distance and when it reaches 20cm call some code to blink the LED.

  const int pingPin = 11;
   unsigned int duration, inches;
    void setup() {
     Serial.begin(9600);
   }
   void loop() {
     pinMode(pingPin, OUTPUT);          // Set pin to OUTPUT
    digitalWrite(pingPin, LOW);           // Ensure pin is low
     delayMicroseconds(2);
     digitalWrite(pingPin, HIGH);       // Start ranging
     delayMicroseconds(5);              //   with 5 microsecond burst
     digitalWrite(pingPin, LOW);        // End ranging
     pinMode(pingPin, INPUT);           // Set pin to INPUT
     duration = pulseIn(pingPin, HIGH); // Read echo pulse
     inches = duration / 74 / 2;        // Convert to inches
     Serial.println(inches);            // Display result
     delay(200);                     // Short delay }
  

  
  I found this http://learn.parallax.com/kickstart/28015 as well. I use these sensors on all of my robots and this code
  here is pretty much all you need to get something out of them.
  
  I hope this helps you out.
  
  JT