def begin_recording():
bmx1 = BMX160(1, 0x68)
bmx2 = BMX160(1, 0x69)
bmx3 = BMX160(4, 0x68)
bmx4 = BMX160(4, 0x69)
f = open("../sensordata.log", 'w')
asyncio.run(run_data_acquisition([bmx1, bmx2], f))
f.close()
def get_imu_data(bmx: BMX160, prev_time):
accel = np.zeros(shape=(NUM_SAMPLES, 3))
gyro = np.zeros(shape=(NUM_SAMPLES, 3))
magn = np.zeros(shape=(NUM_SAMPLES, 3))
time_vec = np.zeros(NUM_SAMPLES)
cumtime = 0
start_time = time_lib.time()
new_time = (start_time - prev_time) * 1000
# print("Time between runs {} ms".format(new_time))
for i in range(NUM_SAMPLES):
currtime = time_lib.time()
data = bmx.get_all_data()
finishtime = (time_lib.time()) - currtime
cumtime += finishtime
accel[i] = [data[6], data[7], data[8]]
gyro[i] = [data[3], data[4], data[5]]
magn[i] = [data[0], data[1], data[2]]
time_vec[i] = cumtime
samp_period = cumtime / NUM_SAMPLES
return accel, gyro, magn, samp_period, time_vec, start_time
get accelerometer data of sensor.
With the rotation of the sensor, data changes are visible.
Copyright [DFRobot](http://www.dfrobot.com), 2016
Copyright GNU Lesser General Public License
version V1.0
date 2019-7-9
'''
import sys
sys.path.append('../')
import time
from DFRobot_BMX160 import BMX160
bmx = BMX160(1)
#begin return True if succeed, otherwise return False
while not bmx.begin():
time.sleep(2)
'''
AccelRange_2G
AccelRange_4G
AccelRange_8G
AccelRange_16G
'''
bmx.set_accel_range(bmx.AccelRange_4G)
time.sleep(0.1)
def main():
import numpy as np
import pandas as pd
import abc
import os
import sys
from skinematics.imus import IMU_Base
from DFRobot_BMX160 import BMX160
sensor = BMX160(1)
class BMXSensor(IMU_Base):
# Get Data function
def get_data(self, in_file=None, in_data=None):
#get data from sensor here....
data = bmx.get_all_data()
accel = numpy.zeros(shape=(120, 3))
gyro = numpy.zeros(shape=(120, 3))
magn = numpy.zeros(shape=(120, 3))
cumtime = 0
for i in range(120):
currtime = time.time() * 1000
data = bmx.get_all_data()
cumtime += (time.time() * 1000) - currtime
from DFRobot_BMX160 import BMX160
import time
# Just a tool for getting the sampling rate for the BMX sensor from the i2c port
# Average (lower bound) sampling rate determined to be ~480 samples/sec
bmx1 = BMX160(1, 0x69)
while not bmx1.begin():
time.sleep(2)
def main():
counter = 0
cumtime = 0
while True:
currtime = time.time() * 1000
data1 = bmx1.get_all_data()
time.sleep(0.002)
cumtime += (time.time() * 1000) - currtime
counter += 1
if counter == 100:
avetime = cumtime / counter
counter = 0
cumtime = 0
print("Current average {}".format(avetime))