Devantech SRF05 with 1284

[kane5674]

Hello All,
I’ve been having problems interfacing my Devantech srf05 with the Orangutan svp - 1284 controller. I’ve been trying to implement the code from this older post on:

Parallax Ping sensor code

Wanted to share a short piece of source code, since it's my first program for the Pololu SV-328. I've purchased a Parallax Ping ultrasonic range sensor--got it off the shelf from radio shack actually--and hooked its three lines directly to the corresponding pins on my controller's C5 line. The source code below continually reads the sensor and reports the calculated distance in feet and inches. Seems to work quite well below about 2'; anything about that registers as 6', meaning there was no…

However, the program does not seem to want to enter the while loop, nor will it read the return signal. I know the sensor is sending out a signal by a blinking Red LED on the sensor.

I spoke wtih Dave about this earlier on the telephone, but still have no resolved the problem.

Any help will be appreciated.

[DavidEGrayson]

Hello again.

Did you tie the SRF05’s mode pin to GND?

Can you double check that you have connected the SVP’s GND to the sensor’s ground, SVP’s VCC to the sensor’s 5V supply, and an SVP I/O line to the trigger input/output? Maybe you should post a picture showing your connections so we can check it too.

If you made any modifications to the code in that forum post, please post your entire code here, enclosed in [code] tags so we can check it.

–David