Basecam GPS IMU V.1.0
GNSS-aided AHRS/IMU module
Specifications
Mechanical
Size of the enclosure
71×57×20 mm
Weight
45 g
Mounting holes
3 mm × 4
Electrical
Min
Typ
Max
Power supply
4.5 V
5 V
5.5 V
Drawn current (at 5V)
150 mA
400 mA
(warming
up)
Thermal stabilization
250 mWt 1500 mWt
Backup battery (CR1216)
- current drawn
in backup mode
- lifetime (estimated)
3V
16 µA
75 days
Communications
Interfaces
1× UART
1× USB
1× CAN*
1× I2C*
1× microSD
Max. baud rates
UART: 2 MHz, I2C: 800 kHz, CAN: 2
MHz
Protocols
See "Basecam GPS_IMU Serial API
1.0.pdf"
for a protocol specification
Data output
· Raw sensors data (accelerometer,
magnetometer, barometer, gyroscope,
GNSS)
· Attitude (quaternion, DCM, Euler)
· Angular rate
· Navigation position and velocity
Max. data output rate
200 Hz (faster rates available by
request)
Absolute maximum ratings
Working temperature
-40..+85 °C
Acceleration
1000G for 1 ms
ESD rating
HBM: Class 2, 2000 V
CDM: Class 3, 250 V
Performance
Startup time
1 seconds (communication ready)
3 seconds (first valid data ready)
GNSS best lock time**
Cold
Hot
26 s
1 s
GNSS receiver sensitivity
Tracking & Navigation
Reacquisition
Cold start
Hot start
–165 dBm
–158 dBm
–146 dBm
–155 dBm
GNSS systems
Galileo, GLONASS, GPS, QZSS
concurrently
GNSS receiver update rate 10 Hz
Internal update rates
Gyroscope data
Accelerometer
Magnetometer
Attitude and heading
Position & velocity
2000 Hz
2000 Hz
50 Hz
200 Hz
200 Hz
Angular velocity limits
±2000 deg./sec.
Acceleration limits
16G
Magnetic field strength
limits
16 Gauss
Factory calibrations
Gyroscope bias, accelerometer bias
and scale, magnetometer bias and
scale (at the single working
temperature point)
Thermal stabilization
Setpoint (adjustable)
Time to warm up (typ.):
- from 0°C to 50°C
- from 20°C to 50°C
50 °C
40 sec.
25 sec.
* CAN and I2C interfaces will be implemented in future releases of the firmware
**
WARNING:
this version of GPS IMU has small integrated GNSS antenna, so good conditions for reception of GNSS signal is strictly
required! If used indoor or in dense urban terrain, the startup time may be much longer the best specified values, or even no fix.
© Basecamelectronics® 2019
www.basecamelectronics.com