PX4-Autopilot/docs/en/msg_docs/PowerMonitor.md
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pageClass: is-wide-page
---
# PowerMonitor (UORB message)
power monitor message.
**TOPICS:** power_monitor
## Fields
| Name | Type | Unit [Frame] | Range/Enum | Description |
| --------- | --------- | ------------ | ---------- | -------------------------------------- |
| timestamp | `uint64` | | | Time since system start (microseconds) |
| voltage_v | `float32` | | | Voltage in volts, 0 if unknown |
| current_a | `float32` | | | Current in amperes, -1 if unknown |
| power_w | `float32` | | | power in watts, -1 if unknown |
| rconf | `int16` | | |
| rsv | `int16` | | |
| rbv | `int16` | | |
| rp | `int16` | | |
| rc | `int16` | | |
| rcal | `int16` | | |
| me | `int16` | | |
| al | `int16` | | |
## Source Message
[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/PowerMonitor.msg)
::: details Click here to see original file
```c
# power monitor message
uint64 timestamp # Time since system start (microseconds)
float32 voltage_v # Voltage in volts, 0 if unknown
float32 current_a # Current in amperes, -1 if unknown
float32 power_w # power in watts, -1 if unknown
int16 rconf
int16 rsv
int16 rbv
int16 rp
int16 rc
int16 rcal
int16 me
int16 al
```
:::