def setup(self):
# setup ble
libmetawear.mbl_mw_settings_set_connection_parameters(
self.device.board, 7.5, 7.5, 0, 6000)
sleep(1.5)
# setup event
e = Event()
# processor callback fxn
def processor_created(context, pointer):
self.processor = pointer
e.set()
fn_wrapper = cbindings.FnVoid_VoidP_VoidP(processor_created)
# get acc signal
acc = libmetawear.mbl_mw_acc_get_acceleration_data_signal(
self.device.board)
# create acc averager (averages 4 consecutive acc data entriess)
libmetawear.mbl_mw_dataprocessor_average_create(
acc, 4, None, fn_wrapper)
# wait for averager to be created
e.wait()
# subscribe to signal
libmetawear.mbl_mw_datasignal_subscribe(self.processor, None,
self.callback)
def setup(self):
libmetawear.mbl_mw_settings_set_connection_parameters(
self.device.board, 7.5, 7.5, 0, 6000)
sleep(1.5)
e = Event()
def processor_created(context, pointer):
self.processor = pointer
e.set()
fn_wrapper = cbindings.FnVoid_VoidP_VoidP(processor_created)
acc = libmetawear.mbl_mw_acc_get_acceleration_data_signal(
self.device.board)
libmetawear.mbl_mw_dataprocessor_average_create(
acc, 4, None, fn_wrapper)
e.wait()
libmetawear.mbl_mw_datasignal_subscribe(self.processor, None,
self.callback)
device = MetaWear(sys.argv[1])
device.connect()
print("Connected to " + device.address)
e = Event()
print("Configuring device")
accel_signal = libmetawear.mbl_mw_acc_get_acceleration_data_signal(
device.board)
libmetawear.mbl_mw_macro_record(device.board, 1)
rss = create_voidp(lambda fn: libmetawear.mbl_mw_dataprocessor_rss_create(
accel_signal, None, fn),
resource="rss",
event=e)
avg = create_voidp(lambda fn: libmetawear.mbl_mw_dataprocessor_average_create(
rss, 4, None, fn),
resource="avg",
event=e)
threshold = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_threshold_create(
avg, ThresholdMode.BINARY, 0.5, 0.0, None, fn),
resource="threhsold",
event=e)
ths_below = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_comparator_create(
threshold, ComparatorOperation.EQ, -1.0, None, fn),
resource="ths_below",
event=e)
ths_above = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_comparator_create(
threshold, ComparatorOperation.EQ, 1.0, None, fn),
libmetawear.mbl_mw_acc_bmi160_set_odr(d.board, AccBmi160Odr._50Hz)
libmetawear.mbl_mw_acc_set_range(d.board, 2.0)
libmetawear.mbl_mw_acc_write_acceleration_config(d.board)
# start to setup rms->avg->thresh->log chain
acc_signal = libmetawear.mbl_mw_acc_get_acceleration_data_signal(d.board)
# create RMS - root mean square of acc X,Y,Z
rms = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_rms_create(
acc_signal, None, fn), "RMS")
print("RMS created")
# setup averager - averages over 8 RMS samples @ 50Hz
avg = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_average_create(
rms, 8, None, fn), "averager")
print("Averager created")
# setup event on avg - reset averager
libmetawear.mbl_mw_event_record_commands(avg)
libmetawear.mbl_mw_dataprocessor_average_reset(avg)
end_event_record(avg)
# setup threshold detector - detect anything above 1
ths = create_voidp(
lambda fn: libmetawear.mbl_mw_dataprocessor_threshold_create(
avg, ThresholdMode.BINARY, 1.0, 0.0, None, fn),
"threshold detector")
print("Threshold detector created")
# setup logger - log the final signal of the averaged data