# Picar-s unable to get Ultrasonic Avoidance to workgit

**URL:** <https://forum.sunfounder.com/t/picar-s-unable-to-get-ultrasonic-avoidance-to-workgit/53>\
**Category:** Robotic kit for Raspberry Pi\
**Created:** [December 28, 2022, 1:55am UTC](https://forum.sunfounder.com/t/picar-s-unable-to-get-ultrasonic-avoidance-to-workgit/53 "2022-12-28T01:55:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gambl01d](https://avatars.discourse-cdn.com/v4/letter/g/71e660/32.png) [@gambl01d](https://forum.sunfounder.com/u/gambl01d)\
**Post date:** [December 28, 2022, 1:55am UTC](https://forum.sunfounder.com/t/picar-s-unable-to-get-ultrasonic-avoidance-to-workgit/53/1 "2022-12-28T01:55:16Z")

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I am trying to use the Sunfounder picar-S with Ultrasonic Avoidance.  
The module returns “read error” on a regular basis. Any help would be appreciated.

github link to the source code (V2):

> <https://github.com/sunfounder/SunFounder_Ultrasonic_Avoidance/blob/f2310645b4f4835871ff8cca2969e71a1b3df11f/Ultrasonic_Avoidance.py>

I have also tried with V3 in python3 but both have similar results.

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**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\
**Post date:** [December 28, 2022, 2:41pm UTC](https://forum.sunfounder.com/t/picar-s-unable-to-get-ultrasonic-avoidance-to-workgit/53/2 "2022-12-28T14:41:46Z")

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Our technical department guesses that this ultrasonic module may be defective, and we will arrange for customer service personnel to contact you later to replace this module for you.