--- pageClass: is-wide-page --- # ButtonEvent (повідомлення UORB) **TOPICS:** button_event safety_button ## Fields | Назва | Тип | Unit [Frame] | Range/Enum | Опис | | --------- | -------- | ---------------------------------------------------------------- | ---------- | --------------------------------------------------------- | | timestamp | `uint64` | | | time since system start (microseconds) | | triggered | `bool` | | | Set to true if the event is triggered | ## Constants | Назва | Тип | Значення | Опис | | ----------------------------------------------------------------------------------------- | ------- | -------- | ---- | | ORB_QUEUE_LENGTH | `uint8` | 2 | | ## Source Message [Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/ButtonEvent.msg) :::details Click here to see original file ```c uint64 timestamp # time since system start (microseconds) bool triggered # Set to true if the event is triggered # TOPICS button_event safety_button uint8 ORB_QUEUE_LENGTH = 2 ``` :::