MEMS Senzory

MEMS Senzory#

Doplnkový STM modul s MEMS senzormi.

Dokumentácia

Dokumentácia k modulu

Dokumentácia k senzorom

Knižnice pre obsluhu senzorov modulu.

Adresácia komponentov

Senzory majú priradené pevné adresy
7-bitove adresy (bez bitového posunu)

0x6D  107   LSM6DSL    akcelometer a gyroskop

0x5F   95   HTS221     teplomer a vlhkomer

0x5D   93   LPS22HB    tlakomer

0x1e   30   LSM303AGH  akcelerometer
0x19   25   LSM303AGH  magneticky senzor
_images/stm_mems_board.png

Programovanie#

Nahratie knižníc

python pyboard.py -f cp lib_lsm6ds3.py :lib_lsm6ds3.py
python pyboard.py -f cp lib_hts221.py :lib_hts221.py
python pyboard.py -f cp lib_lps22.py :lib_lps22.py
python pyboard.py -f cp lib_lsm303agr_mag.py :lib_lsm303agr_mag.py

LSM6DSL - Akcelerometer a gyroskop#

import math
import time 
from pyb import I2C
from lib_lsm6ds3 import *

i2c = I2C(1, I2C.CONTROLLER, baudrate=400000)   # inicializacia rozhrania
print('Kontrola zariadeni na zbernici :', i2c.scan())

sensor = LSM6DS3(i2c, address=107, mode=PERFORMANCE_MODE_416HZ) #mode=NORMAL_MODE_104HZ)
for i in range(10):
    ax, ay, az, gx, gy, gz = sensor.get_readings()
    print(ax, ay, az)
    print(gx, gy, gz, math.sqrt(ax**2 + ay**2 + az**2)*0.061 )
    print()

HTS221 - Teplomer a vlhkomer#

import math
import time 
from pyb import I2C
from lib_hts221 import *

i2c = I2C(1, I2C.CONTROLLER, baudrate=400000)   # inicializacia rozhrania
print('Kontrola zariadeni na zbernici :', i2c.scan())

hts = HTS221(i2c)
for i in range(10):
    hts.get()

LPS22HB - Tlakomer#

import math
import time 
from pyb import I2C
from lib_lps22 import *

i2c = I2C(1, I2C.CONTROLLER, baudrate=400000)   # inicializacia rozhrania
print('Kontrola zariadeni na zbernici :', i2c.scan())

lps = LPS22(i2c)
time.sleep(0.1)
for i in range(10):
  lps.get()

LSM303AGH - Magnetometer#

import math
import time 
from pyb import I2C
from lib_lsm303agr_mag import *

i2c = I2C(1, I2C.CONTROLLER, baudrate=400000)   # inicializacia rozhrania
print('Kontrola zariadeni na zbernici :', i2c.scan())

mag = LSM303AGR_MAG(i2c)
for i in range(10):
  print(mag.magnetic())
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