C? (compass update), Request for data commands – PNI TCM 2.6 User Manual
Page 23
PNI Sensor Corporation
DOC#1009269 r11
TCM2.5 & TCM2.6 User Manual
Page 23 of 49
Request for Data Commands
Query Commands
c? (Compass Update)
Description
Samples the magnetometer and inclinometer sensors, then calculates and returns
the compass heading. When in Standby mode (h) use this command to query the
compass reading regardless of whether compass data has been selected for
inclusion in the output word.
Syntax
c?
Output
when compass units are set to degrees:
$Cnnn.n[Ennn]*checksum
when compass units are set to mils:
$Cnnn.n[Ennn]
Resolution
0.1˚ or 2 mils
Valid Values
0 to 359.9˚ or, 0 to 6399 mils
Example
If TCM2 is configured for degrees:
c?
$C255.5[Ennn]*checksum
If TCM2 is configured for mils:
c?
$C4480[Ennn]*checksum
Related Commands
uc= (Set Compass Units)
ec= (Compass Data Enable)