Telemetry Specs - (Developer Guidelines)

Specification for Spektrum X-Bus Telemetry Sensors
Page 22 Rev L
//////////////////////////////////////////////////////////////////
//
// ATTITUDE & MAG COMPASS
//
//////////////////////////////////////////////////////////////////
//
typedef struct
{
UINT8 identifier; // Source device = 0x1B
UINT8 sID; // Secondary ID
INT16 attRoll; // Attitude, 3 axes. Roll is a
// rotation about the X Axis of
// the vehicle using the RHR.
INT16 attPitch; // Units are 0.1 deg - Pitch is a
// rotation about the Y Axis of the
// vehicle using the RHR.
INT16 attYaw; // Yaw is a rotation about the Z
// Axis of the vehicle using the RHR.
INT16 magX; // Magnetic Compass, 3 axes
INT16 magY; // Units are TBD
INT16 magZ; //
} STRU_TELE_ATTMAG;
//////////////////////////////////////////////////////////////////
//
// Real-Time Clock
//
//////////////////////////////////////////////////////////////////
//
typedef struct
{
UINT8 identifier; // Source device = 0x7C
UINT8 sID; // Secondary ID
UINT8 spare[6];
UINT64 UTC64; // Linux 64-bit time_t for
// post-2038 date compatibility
} STRU_TELE_RTC;
//////////////////////////////////////////////////////////////////
//
// RPM/Volts/Temperature
//
//////////////////////////////////////////////////////////////////
//
typedef struct
{
UINT8 identifier; // Source device = 0x7E
UINT8 sID; // Secondary ID
UINT16 microseconds; // microseconds between pulse leading edges
UINT16 volts; // 0.01V increments
INT16 temperature; // degrees F
INT8 dBm_A, // Average signal for A antenna in dBm
dBm_B; // Average signal for B antenna in dBm.
// If only 1 antenna, set B = A
} STRU_TELE_RPM;
//////////////////////////////////////////////////////////////////
//
// QoS DATA
//
//////////////////////////////////////////////////////////////////
//
// NOTE: AR6410-series send:
// id = 7F
// sID = 0
// A = 0
// B = 0
// L = 0
// R = 0
// F = fades