def initialize_sensors():
print("\n--- Sensors initializing...")
try:
#For a raspberry pi, for example, to set up pins 4 and 5, you would add
#GPIO.setmode(GPIO.BCM)
#GPIO.setup(4, GPIO.IN)
#GPIO.setup(5, GPIO.IN)
print("--- Waiting 10 seconds for sensors to warm up...")
time.sleep(10)
# Activate the accelerometer
global ch
ch = Accelerometer()
# Assign event handlers
ch.setOnAttachHandler(AccelerometerAttached)
ch.setOnDetachHandler(AccelerometerDetached)
ch.setOnErrorHandler(ErrorEvent)
# Wait for the sensor to be attached
print(
"--- Waiting for the Phidget Accelerometer Object to be attached..."
)
ch.openWaitForAttachment(5000)
print("--- Sensors initialized!")
# Sync the time on this device to an internet time server
try:
print('\n--- Syncing time...')
os.system('sudo service ntpd stop')
time.sleep(1)
os.system('sudo ntpd -gq')
time.sleep(1)
os.system('sudo service ntpd start')
print('--- Success! Time is ' + str(datetime.datetime.now()))
except:
print('Error syncing time!')
except Exception as ex:
# Log any error, if it occurs
print(
str(datetime.datetime.now()) +
" Error when initializing sensors: " + str(ex))
def initialize_sensors():
print("\n--- Sensors initializing...")
try:
#For a raspberry pi, for example, to set up pins 4 and 5, you would add
#GPIO.setmode(GPIO.BCM)
#GPIO.setup(4, GPIO.IN)
#GPIO.setup(5, GPIO.IN)
print("--- Waiting 10 seconds for sensors to warm up...")
time.sleep(10)
# Activate the accelerometer
global ch
ch = Accelerometer()
# Assign event handlers
ch.setOnAttachHandler(AccelerometerAttached)
ch.setOnDetachHandler(AccelerometerDetached)
ch.setOnErrorHandler(ErrorEvent)
# Wait for the sensor to be attached
print("--- Waiting for the Phidget Accelerometer Object to be attached...")
ch.openWaitForAttachment(5000)
print("--- Sensors initialized!")
# Sync the time on this device to an internet time server
try:
print('\n--- Syncing time...')
os.system('sudo service ntpd stop')
time.sleep(1)
os.system('sudo ntpd -gq')
time.sleep(1)
os.system('sudo service ntpd start')
print('--- Success! Time is ' + str(datetime.datetime.now()))
except:
print('Error syncing time!')
except Exception as ex:
# Log any error, if it occurs
print(str(datetime.datetime.now()) + " Error when initializing sensors: " + str(ex))
(acceleration[0] * 9.80665, acceleration[1] * 9.80665,
acceleration[2] * 9.80665))
print("Timestamp: %f\n" % timestamp)
t.append(timestamp)
ac0.append(acceleration[0])
ac1.append(acceleration[1])
ac2.append(acceleration[2])
#########################################################################
# Programa Principal
#########################################################################
try:
ch.setOnAttachHandler(AccelerometerAttached)
ch.setOnDetachHandler(AccelerometerDetached)
ch.setOnErrorHandler(ErrorEvent)
ch.setOnAccelerationChangeHandler(AccelerationChangeHandler)
print("Waiting for the Phidget Accelerometer Object to be attached...")
ch.openWaitForAttachment(5000)
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Press Enter to Exit...\n")
readin = sys.stdin.read(1)
exit(1)
# Definir el tiempo de muestro del acelerometro (En ms)
T_muestreo = 50 # 20 mediciones por segundo
ch.setDataInterval(T_muestreo)
