bma423
¶
BMA423 Bosch Accelerometer CircuitPython Driver included in the Lilygo Watch V3
Author(s): Jose D. Montoya
-
class bma423.BMA423(i2c_bus: busio.I2C, address: int =
0x19
)[source]¶ Driver for the BMA400 Sensor connected over I2C.
- Parameters:¶
- Raises:¶
RuntimeError – if the sensor is not found
Quickstart: Importing and using the device
Here is an example of using the
BMA423
class. First you will need to import the libraries to use the sensorimport board import bma423
Once this is done you can define your
board.I2C
object and define your sensor objecti2c = board.I2C() # uses board.SCL and board.SDA bma = bma423.BMA423(i2c)
Now you have access to the attributes
accx, accy, accz = bma.acceleration
- property acc_range : str¶
Sensor acc_range
Mode
Value
bma423.ACC_RANGE_2
0x00
bma423.ACC_RANGE_4
0x01
bma423.ACC_RANGE_8
0x02
bma423.ACC_RANGE_16
0x03
- property filter_performance : str¶
Sensor filter_performance
Mode
Value
bma423.CIC_AVG
0x00
bma423.CONT
0x01
- property output_data_rate : str¶
Sensor output_data_rate
Mode
Value
bma423.BANDWIDTH_25_32
0b0001
bma423.BANDWIDTH_25_16
0b0010
bma423.BANDWIDTH_25_8
0b0011
bma423.BANDWIDTH_25_4
0b0100
bma423.BANDWIDTH_25_2
0b0101
bma423.BANDWIDTH_25
0b0110
bma423.BANDWIDTH_50
0b0111
bma423.BANDWIDTH_100
0b1000
bma423.BANDWIDTH_200
0b1001
bma423.BANDWIDTH_400
0b1010
bma423.BANDWIDTH_800
0b1011
bma423.BANDWIDTH_1600
0b1100
- property oversample_rate : str¶
Sensor oversample_rate. Bandwidth parameter, determines filter configuration (acc_perf_mode=1) and averaging for undersampling mode (acc_perf_mode=0)
Mode
Value
bma423.OSR1
0x00
bma423.OSR2
0x01
bma423.OSR4
0x02
bma423.OSR8
0x03
bma423.OSR16
0x04
bma423.OSR32
0x05
bma423.OSR64
0x06
bma423.OSR128
0x07