DBOxxx user manual 1_6

C) Multi-node telemetry. In this application the rover receives remote uncorrected pressure and
temperature from multiple bases using a mesh network topology. The pressure data is absolute
and not differentially corrected.
Specifications
Differential Pressure Accuracy: +/- 0.028 mbar (+/- 25cm) RMS
Absolute Pressure Accuracy: +/- 2 mbar
Temperature Accuracy: +/- 1 C
Operating Temperature: -20C to 70C
Current: 20-120mA peak @ 5VDC (DBO433/DBO915), 20-130mA peak @ 5VDC (DBO868)
Dimensions (L x W x H): 82mm x 32mm x 18mm
Range: 1Km* (DBO433/DBO915), 5Km* (DBO868)
Voltage: 3.8 – 15 VDC
Weight: 30g
* In mode C above individual bases act as mesh network repeaters when in range of any others
potentially increasing totals beyond these specifications.
Pinout
Pin
Description
ROVER
Rover mode jumper selection
BASE
Base mode jumper selection
BAT+
Battery supply (3.8
–
15 VDC)
GND
Ground
RXD
Serial data in
TXD
Serial data out
DTR/RTS
Serial flow control
Serial communication parameters are 9600bps (N,8,1). The DTR/RTS signal pin is only required
to update the firmware.