# Various questions about libcanard

**URL:** <https://forum.opencyphal.org/t/various-questions-about-libcanard/928>\
**Category:** Libcanard\
**Created:** [August 25, 2020, 6:52am UTC](https://forum.opencyphal.org/t/various-questions-about-libcanard/928 "2020-08-25T06:52:13Z")\
**Posts on this page:** 1\
**Showing post:** 56

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**Author:** ![hugo](https://forum.opencyphal.org/letter_avatar_proxy/v4/letter/h/b38774/32.png) [@hugo](https://forum.opencyphal.org/u/hugo)\
**Post date:** [September 23, 2020, 10:36am UTC](https://forum.opencyphal.org/t/various-questions-about-libcanard/928/56 "2020-09-23T10:36:16Z")

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Maybe this example can help you?

> [@Libcanard: Examples, Starters, Tutorials](https://forum.opencyphal.org/t/libcanard-examples-starters-tutorials/935/5):
>
> Raspberry Pi with ultrasound example in C The code is meant to be run using two Raspberry Pi. Each Pi is connected to a MCP2515 module. One Pi is connected to a HC-SR04 ultrasound sensor. The sensor calculated distance to an obstacle is transmitted as a 32bit float. The float is serialized using canard\_dsdl.h. At the reciving end the float is deserialized and the distance is printed to the console. The code can be found at: [raspberry-can-HC-SR04](https://github.com/bluecorn/raspberry-can-HC-SR04)[raspberry-can-master-ultrasound](https://github.com/bluecorn/raspberry-can-master-ultrasound)

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