---
tag: m0115
title: Firmware Info
brief: Print the firmware info and capabilities.
author: thinkyhead

group: hosts

codes: [ M115 ]

notes:

parameters:

examples:

---
This command causes Marlin to output a string like this:

```
FIRMWARE_NAME:Marlin 1.1.0 (Github) SOURCE_CODE_URL:https://github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:RepRap EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
```

When `EXTENDED_CAPABILITIES_REPORT` is enabled, Marlin also reports its capabilities:

```
Cap:EEPROM:1
Cap:AUTOREPORT_TEMP:1
Cap:PROGRESS:0
Cap:AUTOLEVEL:1
Cap:Z_PROBE:1
Cap:SOFTWARE_POWER:0
Cap:TOGGLE_LIGHTS:0
Cap:EMERGENCY_PARSER:1
```

Hosts use this information to improve interoperability, so it's a good feature to enable.

With `EXTENDED_CAPABILITIES_REPORT` and `M115_GEOMETRY_REPORT` enabled, Marlin will also report detailed printer geometry:

```
area:{full:{min:{x:0,y:0,z:0,i:0,j:0,k:0,u:0,v:0,w:0},max:{x:200,y:200,z:200,i:0,j:0,k:0,u:0,v:0,w:0}},work:{min:{x:0,y:0,z:0,i:0,j:0,k:0},max:{x:200,y:200,z:200,i:0,j:0,k:0,u:0,v:0,w:0}}}
```

Coordinates are only reported for declared linear axes. So for a classic cartesian printer, the geometry report will look like:

```
area:{full:{min:{x:0,y:0,z:0},max:{x:200,y:200,z:200}},work:{min:{x:0,y:0,z:0},max:{x:200,y:200,z:200}}}
```