User's Manual

28
4.5 Bluetooth Payload Structure
Data
Description
0xFF
Ad packet type (0xFF = mfg-specific data)
0xEF
Placeholder for a two-byte company ID number
0xBE
Placeholder for a two-byte company ID number
0x00
Accel data next
Two bytes, little-endian, signed integer, X-axis
acceleration
Two bytes, little-endian, signed integer, Y-axis
acceleration
Two bytes, little-endian, signed integer, Z-axis
acceleration
Two bytes, little-endian, unsigned integer,
acceleration magnitude
0x01
Lux data next
Two bytes, little-endian, unsigned integer, lux
ADC count
0x02
Temp data next
Two bytes, little-endian, unsigned integer, temp
ADC count
0x03
GPS data next
Four bytes, little-endian, signed integer, GPS
latitude * 1e6
Four bytes, little-endian, signed integer, GPS
longitude * 1e6
4.6 Battery Voltage and Temperature Conversion Tables
4.6.1 Battery Voltage vs. Count Value
Battery (V)
ADC (Counts)
4.2
283.3
4.1
276.4
4
269.7
3.9
263
3.8
256.1
3.7
249.5
3.6
242.7
3.5
236
3.4
229.4
3.3
225
3.2
225
3.1
226
3
227.4
Battery voltage can be observed with HyperTerminal,
SecureCRT or ZOC command ‘Xpd’:
Xpd
SensorIgnition: Clear (39)
SensorAccelerometer: {-23131,8,-5216}, 1mg
SensorVibration: {0}
SensorMainVoltage: 0.3 (0.8)
SensorBatteryVoltage: 281.2 (0.0)
SensorTmp20: 2550,134.5 (274.1)
SensorAmbientLight: 305.6 (0.0)
SensorExt1Voltage: 0.0 (0.0)
SensorSigfoxVoltage: 409.5 (0.0)
SensorWifiVoltage: 398.6 (0.0)