Help me write code for distance measurement using ultrasonic transducer & PIC16F877A

[maximus332]

Help me write code for distance measurement using ultrasonic transducer & PIC16F877A

Sir,
I am working on a distance measurement device using PING ultrasonic transducer and PIC16f877A,
but i cant able write the suitable code for this sensor in C, please help me.
Thanks

 

[Tahmid]

Re: distance measurement

Are you talking about this sensor? www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf

The theory of operation is explained in page 3 of the document. For measuring the width of the signal, you can use the capture module.

Hope this helps.
Tahmid.

 

[maximus332]

distance measurement

pls send me the code for distance measurement using PIC1687x and PING ULTRASONIC transducer,
my email id : maximus332@rocketmail.com
thank you.

 

[klystron]

Re: distance measurement

What is your specification / user story / need

 

[maximus332]

Re: distance measurement

i want to measure the distance to an object up to 3m, i am using PIC16f877A as the controller, pls check the attachment which is the data sheet of my sensor.
thank you.

 

[amrshata]

Re: Help me write code for distance measurement using ultrasonic transducer & PIC16F8

i'm just working on a one ...

my idea based on using pwm .. as i emit pwm with freq. 40khz from the pic for 0.5 sec..then through the transiver . that's meaning 20khz has been transmitted at the same time i open the pwm i
use the pic in capture mode to count the number of returned pulses through the receiver ...
then i calculate the number of missed pulses ... 20k - recevied = missed .... then by knowing the frequency we can calculate the distance

 

[Mai Saleem]

Re: Help me write code for distance measurement using ultrasonic transducer & PIC16F8

plllllllllllz i need a code in C also for the same project... measuring height by LV-EZ0 sensor....and im using pic16f8877a ...

 

[bigdogguru]

Re: Help me write code for distance measurement using ultrasonic transducer & PIC16F8

i need a code in C also for the same project... measuring height by LV-EZ0 sensor....and im using pic16f8877a ...

The following is a document with a detailed discussion of using several of the available interfaces of the MaxBotix LV-MaxSonar series with a PIC with code snippets.



BigDog