# Included Lua Libraries

| Lua Standard Libraries                                                                                      | Included                                                 |
| ----------------------------------------------------------------------------------------------------------- | -------------------------------------------------------- |
| package                                                                                                     | -                                                        |
| coroutine                                                                                                   | -                                                        |
| table                                                                                                       | <p>since OpenTX 2.3.8 </p><p>(color LCD radios only)</p> |
| [io](https://github.com/opentx/lua-reference-guide/tree/89b65e383782af902c0528c648021268417248da/lib/io.md) | since OpenTX 2.1.0 (with limitations)                    |
| os                                                                                                          | -                                                        |
| string                                                                                                      | since OpenTX 2.1.7                                       |
| bit32                                                                                                       | since OpenTX 2.1.0                                       |
| math                                                                                                        | since OpenTX 2.0.0                                       |
| debug                                                                                                       | -                                                        |