Read bma220 accelerometer micropython esp32

bma220.py

import machine

i2c = machine.I2C(0)
import struct
import time
import math

def calib_g(val):
    return val*0.613305+0.0124529
while True:
    
    
    time.sleep(0.1)

    x,y,z = struct.unpack('bbb',i2c.readfrom_mem(10,0x04,3))
    
    x>>=2
    y>>=2
    z>>=2
    #print(math.sqrt(x**2+y**2+z**2))
    
    
    print(calib_g(x),calib_g(y),calib_g(z))