# 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://luadoc.edgetx.org/2.9/part_ii_-_opentx_lua_api_programming_guide/included_lua_libraries/io-library) | 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                                                                                                            | -                                                       |