> For the complete documentation index, see [llms.txt](https://auvidea.gitbook.io/r-group/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://auvidea.gitbook.io/r-group/r-group.md).

# R – Group

Boards based on the Raspberry Pi Zero

## R - Boards

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h2>R20.2 / R21</h2><p>With Raspberry Pi Zero</p></td><td></td><td></td><td><a href="https://4093101927-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYJLT92DytT5j5e8CLx2L%2Fuploads%2FC9b2wspqracSzggWu7K7%2FR20.1%20(38620-2)%20iso-transparent.png?alt=media&amp;token=2f1922de-486f-4f88-99aa-703b4afdcb23">R20.1 (38620-2) iso-transparent.png</a></td><td><a href="https://auvidea.gitbook.io/r20.1-r21/">R20.1/R21</a></td></tr><tr><td><h2>R22</h2><p>Coming soon</p></td><td></td><td></td><td><a href="https://4093101927-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYJLT92DytT5j5e8CLx2L%2Fuploads%2FlBBucl0zW1aLoFUOXDas%2FR22_ISOMETRIC_CROPPED.png?alt=media&amp;token=2f5a9c0b-fe31-4a30-892c-cd58582d873a">R22_ISOMETRIC_CROPPED.png</a></td><td></td></tr></tbody></table>