def setup(self):
libmetawear.mbl_mw_settings_set_connection_parameters(self.device.board, 7.5, 7.5, 0, 600)
sleep(1.5)
e = Event()
def processor_created(context, pointer):
self.processor = pointer
e.set()
fn_wrapper = cbindings.FnVoid_VoidP_VoidP(processor_created)
# set accelerometer to 100Hz sampling rate and range to +/- 16 g's
libmetawear.mbl_mw_acc_set_odr(s.device.board, 100.0)
libmetawear.mbl_mw_acc_set_range(s.device.board, 16.0)
libmetawear.mbl_mw_acc_write_acceleration_config(s.device.board)
# set gyro to 100Hz sampling rate and +/- 1000 deg/sec.
libmetawear.mbl_mw_gyro_bmi160_set_odr(s.device.board, MBL_MW_GYRO_BMI160_ODR_100Hz)
libmetawear.mbl_mw_gyro_bmi160_set_range(s.device.board, MBL_MW_GYRO_BMI160_RANGE_1000dps)
libmetawear.mbl_mw_gyro_bmi160_write_config(s.device.board)
acc = libmetawear.mbl_mw_acc_get_acceleration_data_signal(self.device.board)
gyro = libmetawear.mbl_mw_gyro_bmi160_get_rotation_data_signal(self.device.board)
signals = (c_void_p * 1)()
signals[0] = gyro
# libmetawear.mbl_mw_dataprocessor_accounter_create(signals, None, fn_wrapper)
fuser = create_voidp(lambda fn: libmetawear.mbl_mw_dataprocessor_fuser_create(acc, signals, 1, None, fn), resource = "fuser", event = e)
accounter = create_voidp(lambda fn: libmetawear.mbl_mw_dataprocessor_accounter_create(fuser, None, fn), resource = "accounter", event = e)
# libmetawear.mbl_mw_datasignal_subscribe(self.processor, None, self.callback)
libmetawear.mbl_mw_datasignal_subscribe(accounter, None, self.callback)
def setup(self):
# set BLE connection params (min connect interval, max interval,
# latency, timeout) all in milliseconds
libmetawear.mbl_mw_settings_set_connection_parameters(
self.device.board, 7.5, 7.5, 0, 6000)
# set BLE advertising strength (higher strength = higher power consumption
# but theoretically better connectivity)
libmetawear.mbl_mw_settings_set_tx_power(self.device.board, 4)
sleep(1.5)
e = Event()
def processor_created(context, pointer):
self.processor = pointer
e.set()
fn_wrapper = metacbindings.FnVoid_VoidP_VoidP(processor_created)
# set accelerometer to 100Hz sampling rate and range to +/- 16 g's
libmetawear.mbl_mw_acc_set_odr(s.device.board, 100.0)
libmetawear.mbl_mw_acc_set_range(s.device.board, 16.0)
libmetawear.mbl_mw_acc_write_acceleration_config(s.device.board)
# set gyro to 100Hz sampling rate and +/- 1000 deg/sec.
libmetawear.mbl_mw_gyro_bmi160_set_odr(s.device.board,
MBL_MW_GYRO_BMI160_ODR_100Hz)
libmetawear.mbl_mw_gyro_bmi160_set_range(
s.device.board, MBL_MW_GYRO_BMI160_RANGE_1000dps)
libmetawear.mbl_mw_gyro_bmi160_write_config(s.device.board)
# get pointers referencing the acc and gyro data signals
acc = libmetawear.mbl_mw_acc_get_acceleration_data_signal(
self.device.board)
gyro = libmetawear.mbl_mw_gyro_bmi160_get_rotation_data_signal(
self.device.board)
signals = (c_void_p * 1)()
signals[0] = gyro
# //libmetawear.mbl_mw_dataprocessor_accounter_create(signals, None, fn_wrapper)
# chain two processors together (fuser and accounter) to get timestamped acc+gyro data
# create a fuser "data processor" which packages the acc and gyro signals into same packets before sending
fuser = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_fuser_create(
acc, signals, 1, None, fn),
resource="fuser",
event=e)
# accounter processor adds correct epoch data to BLE packets, necessary for timestamping stream-mode data
accounter = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_accounter_create(
fuser, None, fn),
resource="accounter",
event=e)
# //libmetawear.mbl_mw_datasignal_subscribe(self.processor, None, self.callback)
libmetawear.mbl_mw_datasignal_subscribe(accounter, None, self.callback)
# signal = libmetawear.mbl_mw_acc_get_acceleration_data_signal(s.device.board)
signal = libmetawear.mbl_mw_gyro_bmi160_get_rotation_data_signal(s.device.board)
s.processor = None
# print("Processor: ", s.processor)
def processor_created(context, pointer):
s.processor = pointer
e.set()
# while(s.processor is None):
print("Trying to create processor...")
e = Event()
fn_wrapper = FnVoid_VoidP_VoidP(processor_created)
libmetawear.mbl_mw_dataprocessor_accounter_create(signal, None, fn_wrapper)
e.wait()
input("Press enter to start streaming...")
# libmetawear.mbl_mw_datasignal_subscribe(signal, None, s.callback)
try:
libmetawear.mbl_mw_datasignal_subscribe(s.processor, None, s.callback)
except OSError:
raise OSError("Processor pointer unassignable...reconnect")
except:
raise ValueError("Unexpected Error...")
libmetawear.mbl_mw_gyro_bmi160_enable_rotation_sampling(s.device.board)
libmetawear.mbl_mw_gyro_bmi160_start(s.device.board)
