# Question about uavcan.equipment.indication

**URL:** <https://forum.opencyphal.org/t/question-about-uavcan-equipment-indication/285>\
**Category:** Libcanard\
**Created:** [December 11, 2018, 1:21pm UTC](https://forum.opencyphal.org/t/question-about-uavcan-equipment-indication/285 "2018-12-11T13:21:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![skyyuzhang](https://forum.opencyphal.org/user_avatar/forum.opencyphal.org/skyyuzhang/32/65_2.png) [@skyyuzhang](https://forum.opencyphal.org/u/skyyuzhang)\
**Post date:** [December 11, 2018, 1:21pm UTC](https://forum.opencyphal.org/t/question-about-uavcan-equipment-indication/285/1 "2018-12-11T13:21:16Z")

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How do I get data or send data when using some data type which no ID when using libcanard. such as `RGB565` `SingleLightCommand`

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**Author:** ![pavel.kirienko](https://forum.opencyphal.org/user_avatar/forum.opencyphal.org/pavel.kirienko/32/9_2.png) [@pavel.kirienko](https://forum.opencyphal.org/u/pavel.kirienko)\
**Post date:** [December 11, 2018, 8:44pm UTC](https://forum.opencyphal.org/t/question-about-uavcan-equipment-indication/285/2 "2018-12-11T20:44:48Z")

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Just pick any data type ID manually and use it. More info: [https://uavcan.org/Specification/3.\_Data\_structure\_description\_language/](https://uavcan.org/Specification/3._Data_structure_description_language/)