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mi_band_1a.py
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mi_band_1a.py
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"""
@brief Python class to communicate with the Xiaomi Mi Band 1A
@author David SALLE
@date 10/05/2017
@version 0.1.0
@licence GPLv3
"""
# Standard librairies
import time
import math
import datetime
# Other library (need a custom installation: pip3 install bluepy)
import bluepy
class MiBand1A(bluepy.btle.DefaultDelegate):
"""MiBand1A class
"""
def __init__(self, gender, age, height, weight, alias, which_hand, keep_data):
"""Constructor method to initialise everything useful
@param {MiBand1A} self
@param {integer} gender (0=female, 1=man, 2=other)
@param {integer} age
@param {integer} height in cm (e.g.: 175)
@param {integer} weight in kg (e.g.: 75)
@param {string} alias user name (ex: "jbegood")
@param {integer} which_hand (left=0, right=1)
@param {boolean} keep_data inside the MiBand ?
@return None
"""
# Call the super class constructor
bluepy.btle.DefaultDelegate.__init__(self)
# Some initializations
self.gender = gender
self.age = age
self.height = height
self.weight = weight
self.alias = alias
self.which_hand = which_hand
self.keep_data = keep_data
self.bluetooth_address = None
self.device = None
self.sensor_data_csv_file = None
self.activity_data_csv_file = None
self.sensor_data = None
self.gravity = 9.81
self.scale_factor = 1000
self.authentication_ended = False
self.authentication_ok = False
self.upload_in_progress = False
self.activity_data = []
self.ack_messages = []
self.data_block_datak_counter = 0
def handleDiscovery(self, dev, is_new_dev, is_new_data):
"""Method to handle discovery of new BLE devices
@param {MiBand1A} self
@param {ScanEntry} dev
@param {boolean} is_new_dev
@param {boolean} isNewData
@return None
"""
if is_new_dev:
print(" + Discovered device : address=%s rssi=%d dBm" % (dev.addr, dev.rssi) )
elif is_new_data:
print(" + Received new data from", dev.addr)
def scan_and_connect(self, timeout, bluetooth_addresses, rssi_threshold):
"""Method to scan and connect to a chosen and close BLE device
@param {MiBand1A} self
@param {float} timeout
@param {string list} white liste bluetooth_addresses
@param {integer} rssi_threshold
@return {string} bluetooth_address of the connected device or None
"""
# Start scanning for devices to connect to
self.scanner = bluepy.btle.Scanner().withDelegate(self)
devices = self.scanner.scan(timeout)
# Is a Mi Band inside the ScanEntry list after scanning
for dev in devices:
for bluetooth_address in bluetooth_addresses:
if dev.addr == bluetooth_address and dev.rssi > rssi_threshold:
print(" + Found a Mi Band 1A in the wish list, try to connect to", dev.addr)
self.bluetooth_address = dev.addr
# Connect to the device
self.device = bluepy.btle.Peripheral(self.bluetooth_address)
# Lower security level to bypass pairing
self.device.setSecurityLevel("medium")
# Record us as a delegate to handle notifications
self.device.setDelegate( self )
return True
return False
def disconnect(self):
"""Method to disconnect the device
@param {MiBand1A} self
@return None
"""
# Disconect the device (if already connected)
if self.device is not None:
self.device.disconnect()
def get_services_and_characteristics(self):
"""Method to get services and charactestics needed to play with the Mi Band
@param {MiBand1A} self
@return None
"""
# Get useful services
self.mili_service = self.device.getServiceByUUID("0000fee0-0000-1000-8000-00805f9b34fb")
self.alert_service = self.device.getServiceByUUID("00001802-0000-1000-8000-00805f9b34fb")
# Get useful characteristics
self.device_info_characteristic = self.mili_service.getCharacteristics("0000ff01-0000-1000-8000-00805f9b34fb")[0]
self.device_name_characteristic = self.mili_service.getCharacteristics("0000ff02-0000-1000-8000-00805f9b34fb")[0]
self.notification_characteristic = self.mili_service.getCharacteristics("0000ff03-0000-1000-8000-00805f9b34fb")[0]
self.user_info_characteristic = self.mili_service.getCharacteristics("0000ff04-0000-1000-8000-00805f9b34fb")[0]
self.control_point_characteristic = self.mili_service.getCharacteristics("0000ff05-0000-1000-8000-00805f9b34fb")[0]
self.realtime_steps_characteristic = self.mili_service.getCharacteristics("0000ff06-0000-1000-8000-00805f9b34fb")[0]
self.activity_data_characteristic = self.mili_service.getCharacteristics("0000ff07-0000-1000-8000-00805f9b34fb")[0]
self.firmware_data_characteristic = self.mili_service.getCharacteristics("0000ff08-0000-1000-8000-00805f9b34fb")[0]
self.le_params_characteristic = self.mili_service.getCharacteristics("0000ff09-0000-1000-8000-00805f9b34fb")[0]
self.date_time_characteristic = self.mili_service.getCharacteristics("0000ff0a-0000-1000-8000-00805f9b34fb")[0]
self.statistics_characteristic = self.mili_service.getCharacteristics("0000ff0b-0000-1000-8000-00805f9b34fb")[0]
self.battery_characteristic = self.mili_service.getCharacteristics("0000ff0c-0000-1000-8000-00805f9b34fb")[0]
self.test_characteristic = self.mili_service.getCharacteristics("0000ff0d-0000-1000-8000-00805f9b34fb")[0]
self.sensor_data_characteristic = self.mili_service.getCharacteristics("0000ff0e-0000-1000-8000-00805f9b34fb")[0]
self.pair_characteristic = self.mili_service.getCharacteristics("0000ff0f-0000-1000-8000-00805f9b34fb")[0]
self.vibrate_characteristic = self.alert_service.getCharacteristics("00002a06-0000-1000-8000-00805f9b34fb")[0]
def subscribe_to_notifications(self):
"""Method to subscribe to all interesting notification characteristics
@param {MiBand1A} self
@return None
"""
subscribe_command = bytes([0x01, 0x00])
notification_handle = self.notification_characteristic.getHandle() + 1
self.device.writeCharacteristic(notification_handle, subscribe_command, withResponse=True)
activity_data_handle = self.activity_data_characteristic.getHandle() + 1
self.device.writeCharacteristic(activity_data_handle, subscribe_command, withResponse=True)
sensor_data_handle = self.sensor_data_characteristic.getHandle() + 1
self.device.writeCharacteristic(sensor_data_handle, subscribe_command, withResponse=True)
def authenticate(self):
"""Method to authenticate user
@param {MiBand1A} self
@return {boolean} success or fail
"""
#data = bytes([0x27, 0x4e, 0x92, 0x06, 0x02, 0x19, 0xaf, 0x46, 0x00, 0x05, 0x00, 0x74, 0x65, 0x73, 0x74, 0x79, 0x00, 0x00, 0x00, 0x16])
data = self.generate_user_info(self.bluetooth_address, self.gender, self.age, self.height, self.weight, self.alias, self.which_hand, 5, 0)
self.user_info_characteristic.write(data, True)
timeout_counter = 0
while self.authentication_ended == False and timeout_counter < 100:
self.wait_for_notifications(0.1)
timeout_counter += 1
if timeout_counter < 100 and self.authentication_ok == True:
return True
else:
return False
def pair(self):
"""Method to manually pair device
@param {MiBand1A} self
@return {boolean} success or fail
"""
data = bytes([0x02])
self.pair_characteristic.write(data, True)
return True
def read_device_info(self):
"""Method to read the device information
@param {MiBand1A} self
@return {dict} device_information
"""
# TODO: decode data
device_information = {}
data = self.device_info_characteristic.read()
return device_information
def read_date_time(self):
"""Method to read date time in the wrist
@param {MiBand1A} self
@return {dict} date_time
"""
# Read date time characteristics as bytes
data = self.date_time_characteristic.read()
#print("DEBUG => ", data)
# Analyse and decode bytes
date_time = {}
if len(data) == 7:
year = data[1] + 2000
month = data[2] + 1
day = data[3]
hour = data[4]
minute = data[5]
second = data[6]
# Package all as a dictionary
date_time = {"year":year, "month": month, "day": day, "hour": hour, "minute": minute, "second":second}
return date_time
def read_battery(self):
"""Method to read battery informations
@param {MiBand1A} self
@return {dict} battery_informations
"""
# Read date time characteristics as bytes
data = self.battery_characteristic.read()
#print("DEBUG => ", data)
# Analyse and decode bytes
battery_informations = {}
if len(data) == 10:
level = data[0]
year = data[1] + 2000
month = data[2] + 1
day = data[3]
hour = data[4]
minute = data[5]
second = data[6]
cycles = 0xffff & (0xff & data[7] | (0xff & data[8]) << 8)
status = data[9]
# Package all as a dictionary
battery_informations = {"level": level, "year":year, "month": month, "day": day, "hour": hour, "minute": minute, "second":second, "cycles": cycles, "status": status}
return battery_informations
def read_realtime_steps(self):
"""Method to read the realtime steps. Warning, Mi Band delete value everyday
@param {MiBand1A} self
@return {integer} realtime steps
"""
data = self.realtime_steps_characteristic.read()
return int.from_bytes(data, byteorder='little')
def enable_sensor_data(self):
"""Method to enable live sensor data from accelerometer
@param {MiBand1A} self
@return Nothing
"""
# Enable live sensor data
on_command = bytes([0x12, 0x01])
self.control_point_characteristic.write(on_command, True)
def disable_sensor_data(self):
"""Method to disable live sensor data from accelerometer
@param {MiBand1A} self
@return Nothing
"""
# Disable live sensor data
off_command = bytes([0x12, 0x00])
self.control_point_characteristic.write(off_command, True)
def read_sensor_data(self, timeout=1.0):
"""Method to read some raw sensor datafrom accelerometer
@param {MiBand1A} self
@param {float} timeout
@return {byte list} Raw sensor data
Sensor data means raw x-axis, y-axis and z-axis values
"""
# Waiting for sensor data
self.wait_for_notifications(timeout)
raw_data = []
for b in self.sensor_data:
raw_data.append(b)
return raw_data
def record_sensor_data(self, csv_file_name, samples):
"""Method to read and record some sensor data in a CSV file
@param {MiBand1A} self
@param {string} csv_file_name where to record accelerometer data
@param {int} samples number to record
@return None
Sensor data means raw x-axis, y-axis and z-axis values
"""
# Open CSV file
self.sensor_data_csv_file = open(csv_file_name, "w")
self.sensor_data_csv_file.write("x-axis;y-axis;z-axis\n")
# Enable live sensor data
on_command = bytes([0x12, 0x01])
self.control_point_characteristic.write(on_command, True)
# Loop waiting for sensor data
for i in range(0, samples):
self.wait_for_notifications(1.0)
# Disable live sensor data
off_command = bytes([0x12, 0x00])
self.control_point_characteristic.write(off_command, True)
# Close CSV file
self.sensor_data_csv_file.close()
def fetch_activity_data(self, csv_file_name=None):
"""Method to fetch activity data recorded in the Mi Band
@param {MiBand1A} self
@return {integer} steps done
"""
# Don't know what it is
magic_command = bytes([0x01, 0x00])
magic_handle = self.realtime_steps_characteristic.getHandle() + 1
self.device.writeCharacteristic(magic_handle, magic_command, withResponse=True)
# Send the FETCH command
fetch_command = bytes([0x06])
self.control_point_characteristic.write(fetch_command, True)
# Wait for notification
self.upload_in_progress = True
while self.upload_in_progress == True:
self.wait_for_notifications(1.0)
# Analyse activity data and return steps done
return self.analyse_activity_data(csv_file_name)
def wait_for_notifications(self, timeout):
"""Method to wait for notifications to come
@param {MiBand1A} self
@param {float} timeout to wait in seconds
@return None
"""
return self.device.waitForNotifications(timeout)
def prepare_ack_message(self, data):
"""Method to prepare ack messages to delete or keep data in the Mi Band
@param {MiBand1A} self
@param {bytes} header data
@return None
"""
# Prepare ack message
self.data_block_datak_counter += 1
year = data[1]
month = data[2]
day = data[3]
hour = data[4]
minute = data[5]
second = data[6]
bytes_transferred = ((data[10] * 256) + data[9]) * 3
if self.keep_data == True:
checksum_msb = (~bytes_transferred) & 0xff # Checksum formula if we do not want to delete data on wrist
checksum_lsb = 0xff & (~bytes_transferred >> 8)
else:
checksum_msb = bytes_transferred & 0xff # Checksum if we want to delete data on wrist
checksum_lsb = 0xff & (bytes_transferred >> 8)
ack_message = bytes([0x0a, year, month, day, hour, minute, second, checksum_msb, checksum_lsb])
if self.data_block_datak_counter > 1:
self.ack_messages.append(ack_message)
def analyse_activity_data(self, csv_file_name):
"""Method to analyse and decode activity data.
@param {MiBand1A} self
@param {string} csv_file_name
@return {integer} steps done
"""
global_cursor = 0
local_cursor = 0
next_header = 0
temp_header_data = []
temp_block_data = []
steps_counter = 0
minutes_counter = 0
end_of_analyse = False
start_timestamp = 0
# Open CSV file
if csv_file_name is not None:
activity_data_csv_file = open(csv_file_name, "w")
activity_data_csv_file.write("timestamp;activity_type;intensity;steps\n")
while end_of_analyse == False:
# Analyse header block
temp_header_data = self.activity_data[global_cursor:global_cursor+11]
year = temp_header_data[1] + 2000
month = temp_header_data[2] + 1
day = temp_header_data[3]
hour = temp_header_data[4]
minute = temp_header_data[5]
second = temp_header_data[6]
start_date = datetime.datetime(year, month, day, hour, minute, second)
start_timestamp = int((time.mktime(start_date.timetuple()) + start_date.microsecond/1000000.0)*1000)
data_until_next_header = ((temp_header_data[10] * 256) + temp_header_data[9]) * 3
global_cursor += 11
if data_until_next_header == 0:
end_of_analyse = True
# Analyse data block
local_cursor = 0
while local_cursor < data_until_next_header:
# Slice in 3 bytes blocks
temp_block_data = self.activity_data[global_cursor:global_cursor+3]
global_cursor += 3
local_cursor += 3
minutes_counter += 1
if csv_file_name is not None:
activity_data_csv_file.write("%d;%d;%d;%d\n" % (start_timestamp + (minutes_counter * 60), temp_block_data[0], temp_block_data[1], temp_block_data[2]) )
#print("%d | %d | %d | %d" % (start_timestamp + (minutes_counter * 60), temp_block_data[0], temp_block_data[1], temp_block_data[2]) )
if temp_block_data[2] > 0:
steps_counter += temp_block_data[2]
# Close CSV file if open before
if csv_file_name is not None:
activity_data_csv_file.close()
return steps_counter
def analyse_sensor_data(self, data):
"""Method to analyse and decode raw data from accelerometer (sensor data)
@param {MiBand1A} self
@param {bytes} data
@return {float} acceleration in m^s-2
"""
# Memorize data in order to read_sensor_data to return it
self.sensor_data = data
# Analyse data
counter = (data[1] * 256) + data[0]
for idx in range(0, (len(data)-2) // 6):
step = idx * 6
x_raw_value = ((data[step+3] * 256) + data[step+2]) & 0x0fff
x_sign = (data[step+3] & 0x30) >> 4
x_type = (data[step+3] & 0xc0) >> 6
if x_sign == 0:
x_acc_value = x_raw_value
else:
x_acc_value = x_raw_value - 4096
x_acc_value = (x_acc_value / self.scale_factor) * self.gravity
#print("x_type=%d x_sign=%d x_raw_value=%d x_acc_value=%f" % (x_type, x_sign, x_raw_value, x_acc_value))
y_raw_value = ((data[step+5] * 256) + data[step+4]) & 0x0fff
y_sign = (data[step+5] & 0x30) >> 4
y_type = (data[step+5] & 0xc0) >> 6
if y_sign == 0:
y_acc_value = y_raw_value
else:
y_acc_value = y_raw_value - 4096
y_acc_value = (y_acc_value / self.scale_factor) * self.gravity
#print("y_type=%d y_sign=%d y_raw_value=%d y_acc_value=%f" % (y_type, y_sign, y_raw_value, y_acc_value))
z_raw_value = ((data[step+7] * 256) + data[step+6]) & 0x0fff
z_sign = (data[step+7] & 0x30) >> 4
z_type = (data[step+7] & 0xc0) >> 6
if z_sign == 0:
z_acc_value = z_raw_value
else:
z_acc_value = z_raw_value - 4096
z_acc_value = (z_acc_value / self.scale_factor) * self.gravity
#print("z_type=%d z_sign=%d z_raw_value=%d z_acc_value=%f" % (z_type, z_sign, z_raw_value, z_acc_value))
#millis = int(round(time.time() * 1000))
#print("%f | %f | %f " % (x_acc_value, y_acc_value, z_acc_value))
if self.sensor_data_csv_file is not None:
self.sensor_data_csv_file.write("%f;%f;%f\n" % (x_acc_value, y_acc_value, z_acc_value))
def vibrate(self, duration=0.5):
"""Method to put device in vibration mode for a specified duration
@param {MiBand1A} self
@param {float} duration
@return None
"""
# Start vibration
start_command = bytes([0x01])
self.vibrate_characteristic.write(start_command, False)
#start_command = bytes([0x08, 0x01])
#self.control_point_characteristic.write(start_command, True)
# Wait
time.sleep(duration)
# Stop vibration
stop_command = bytes([0x00])
self.vibrate_characteristic.write(stop_command, False)
#stop_command = bytes([0x13])
#self.control_point_characteristic.write(stop_command, True)
def flash_leds(self):
"""Method to flash the leds
@param {MiBand1A} self
@param {float} duration
@return None
"""
# Start vibration
led_on_command = bytes([0x0e, 0xff, 0xff, 0xff, 0x01])
self.control_point_characteristic.write(led_on_command, True)
# Wait
time.sleep(1.0)
# Stop vibration
led_off_command = bytes([0x0e, 0xff, 0xff, 0xff, 0x00])
self.control_point_characteristic.write(led_off_command, True)
def compute_uid(self, alias):
"""Method to compute uid number from alias
@param {MiBand1A} self
@param {string} alias
@return {integer} uid
"""
# Try to convert string to integer
uid = None
try:
uid = int(alias)
except ValueError:
uid = self.compute_hash_code(alias)
return uid
def compute_hash_code(self, some_string):
"""Clone of the Java hashCode() function
@param {MiBand1A} self
@param {string} some_string
@return {integer} hash
"""
hash = 0
if (len(some_string) == 0):
return hash;
for i in range(0, len(some_string)):
char = ord(some_string[i])
hash = ((hash << 5) - hash) + char
hash = hash & hash # Convert to 32bit integer
return hash
def normalize(self, alias):
"""Normalize alias = max length of 8 char + fill empty byte with 0x00
@param {MiBand1A} self
@param {string} alias (maximum length=8)
@return {byte list} normalized_alias
"""
# Prepare response by filling with 0x00
normalized_alias = [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
# Limit
limit = len(alias)
if (limit > 8):
limit = 8
# Copy of alias in normalized_alias
for i in range(0, limit):
normalized_alias[i] = ord(alias[i])
# Return
return normalized_alias
def compute_crc8(self, sequence):
"""Compute CRC8 of a sequence of bytes (Maxim/Dallas formula)
@param {MiBand1A} self
@param {byte list} sequence
@return {integer} crc8
@see https://gist.github.com/eaydin/768a200c5d68b9bc66e7
"""
crc_table = (
0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,
157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,
35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,
190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,
70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,
219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,
101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,
248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,
140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,
175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,
50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,
202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,
87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,
233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,
116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53
)
crc8 = 0x00
for c in sequence:
crc8 = crc_table[c ^ crc8]
return crc8
def generate_user_info(self, bluetooth_address, gender, age, height, weight, alias, which_hand, feature=5, appearance=0):
"""Generate a 20 bytes sequence from user informations to authenticate against the Mi Band 1A
@param {MiBand1A} self
@param {string} bluetooth_address
@param {integer} gender
@param {integer} age
@param {integer} height
@param {integer} weight
@param {string} alias
@param {integer} which_hand
@param {integer} feature (MiBand_1A=5, MiBand_1S=4)
@param {integer} appearance (noire=0)
@return {Buffer} magic sequence that allow us to authenticate against Mi Band
@see https://github.com/Freeyourgadget/Gadgetbridge/blob/e392fbfd800dc326aee2ac49e122a41ab223ab05/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/UserInfo.java
@see https://github.com/betomaluje/Mi-Band/blob/6542e34ec5f5b2190262558898ab72810f1b880f/MiBand/app/src/main/java/com/betomaluje/miband/model/UserInfo.java
"""
# Initialize response
user_info = bytearray([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
# Prepare UID section
uid = self.compute_uid(alias);
user_info[0] = (uid >> 0) & 0x000000ff # user ID
user_info[1] = (uid >> 8) & 0x000000ff # user ID
user_info[2] = (uid >> 16) & 0x000000ff # user ID
user_info[3] = (uid >> 24) & 0x000000ff # user ID
# Prepare user data section
user_info[4] = gender # gender
user_info[5] = age # age
user_info[6] = height # height
user_info[7] = weight # weight
user_info[8] = which_hand # which hand
user_info[9] = feature # feature
user_info[10] = appearance # appearance
# Prepare alias section
alias_normalise = self.normalize(alias)
for i in range(0, len(alias_normalise)):
user_info[11+i] = alias_normalise[i]
# Prepare CRC8 data
temp_buffer = [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
for i in range(0, len(temp_buffer)):
temp_buffer[i] = user_info[i]
# Compute CRC8
crc8_alias = self.compute_crc8(temp_buffer)
# Grab the last byte of bluetooth address
bluetooth_address_end = int(bluetooth_address[-2:], 16)
# Compute the magic
magic_crc = (crc8_alias ^ bluetooth_address_end) & 0x000000ff
# Add magic CRC to the end
user_info[19] = magic_crc
# Return the authentication bytes
return user_info
def handleNotification(self, handle, data):
"""Method overloaded from mother class to handle notifications
@param {MiBand1A} self
@param {integer} BLE handle of the notification characteristic
@param {bytes} data
@return None
"""
"""
# DEBUG
print(handle, end=" : ")
for b in data:
print(b, end=" ")
print("")
"""
# Handling notifications
if handle == 0x16:
if data[0] == 0x05:
print(" + Authentication ok")
self.authentication_ended = True
self.authentication_ok = True
elif data[0] == 0x06:
print(" + Authentication failed")
self.authentication_ended = True
self.authentication_ok = False
elif data[0] == 0x1d:
print(" + Vibrate ok")
else:
print(" + Unknown notification")
# Handling activity data
if handle == 0x20:
for b in data:
self.activity_data.append(b)
if len(data) == 11 and data[0] == 0x01 and data[1] == 0x11: # It is an header
# Compute data to transfer
bytes_transferred = ((data[10] * 256) + data[9]) * 3
# Prepare ack message to delete or keep data in the device
self.prepare_ack_message(data)
# If it is the last header, it means that all data were transfered
if bytes_transferred == 0:
for an_ack_message in self.ack_messages:
self.control_point_characteristic.write(an_ack_message, True)
#print(self.activity_data)
self.upload_in_progress = False
# Handling sensor data
if handle == 0x31:
self.analyse_sensor_data(data)
if __name__ == "__main__":
# Header message
print("\n***********************")
print("*** MiBand1A v0.1.0 ***")
print("***********************\n")
try:
print(" => Instanciate object")
#mb1a = MiBand1A(gender=0, age=0, height=175, weight=70, alias="1550050550", which_hand=0, keep_data=True) # default user
mb1a = MiBand1A(gender=2, age=25, height=175, weight=70, alias="testy", which_hand=0, keep_data=True)
print(" => Scan for 5 and try to connect to a Xiaomi Mi Band 1A")
if mb1a.scan_and_connect(5.0, ["c8:0f:10:76:8f:85", "c8:0f:10:76:be:e7"], -80) == True:
print(" => Get services and characteristics")
mb1a.get_services_and_characteristics()
print(" => Subscribe to notifications")
mb1a.subscribe_to_notifications()
"""
print(" => Read device info")
print(" + device_info : ", mb1a.read_device_info() )
print(" => Read date time")
print(" + date_time : ", mb1a.read_date_time() )
print(" => Read battery")
print(" + battery : ", mb1a.read_battery() )
print(" => Read realtime steps")
print(" + realtime_steps : ", mb1a.read_realtime_steps() )
print(" => Vibrate")
mb1a.vibrate(0.5)
print(" => Flash leds")
mb1a.flash_leds()
"""
print(" => Authenticate")
if mb1a.authenticate() == True:
print(" => Read live sensor data")
mb1a.enable_sensor_data()
for i in range(0, 30):
print( mb1a.read_sensor_data(0.1) )
mb1a.disable_sensor_data()
#print(" => Fetch activity data")
#print(" + activity data steps recorded : ", mb1a.fetch_activity_data("dump_activity_data.csv") )
#print(" => Record sensor data")
#mb1a.record_sensor_data("dump_sensor_data.csv", 300)
finally:
print(" => Disconnect")
mb1a.disconnect()