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# Gripper (UORB message)
# Used to command an actuation in the gripper, which is mapped to a specific output in the control allocation module.
**TOPICS:** gripper
## Fields
| 명칭 | 형식 | Unit [Frame] | Range/Enum | 설명 |
| --------- | -------- | ---------------------------------------------------------------- | ---------- | ------------------------------- |
| timestamp | `uint64` | | | |
| command | `int8` | | | Commanded state for the gripper |
## Constants
| 명칭 | 형식 | Value | 설명 |
| ------------------------------------------------------------------ | ------ | ----- | -- |
| COMMAND_GRAB | `int8` | 0 | |
| COMMAND_RELEASE | `int8` | 1 | |
## Source Message
[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/Gripper.msg)
:::details
Click here to see original file
```c
## Used to command an actuation in the gripper, which is mapped to a specific output in the control allocation module
uint64 timestamp
int8 command # Commanded state for the gripper
int8 COMMAND_GRAB = 0
int8 COMMAND_RELEASE = 1
```
:::