and 
NMEA ROT message
Popular NMEA messages
Rate and direction of turn (ROT)
| Message | NMEA-Standard-ROT Rate and direction of turn |
| Comment | The heading computation in this message is derived from consecutive positions. |
| Information | Number of fields: 5 |
| Structure | $GPROT,rate,status*cs\r\n |
| Example | $GPROT,35.6,A*4E |
Payload
| Field | Name | Format | Unit | Example | Description |
|---|---|---|---|---|---|
| 0 | $GPROT | string | - | $GPROT | ROT Message ID (xx = current Talker ID) |
| 1 | rate | degrees/minutes | - | 35.6 | Rate of turn, degrees/minutes, “–” indicates bow turns to port |
| 2 | status | string | - | A | Status Indicator: A = Valid data, V = Invalid data |
| 3 | cs | hexadecimal | - | *4E | Checksum Data: Begins with an asterisk (*) followed by an 8-bit hex representation of the checksum. |
| 4 | CRLF | character | - | - | Carriage return and line feed |
Based on NMEA documentation provided by u-blox.
Learn more about NMEA protocol:
