def read(self):
#Set up link to magnetometer
#for LSM303AGR
mag = adafruit_lis2mdl.LIS2MDL(self.i2c)
#for LSM303DLH
#mag = adafruit_lsm303dlh_mag.LSM303DLH_Mag(self.i2c)
return mag.magnetic
# SPDX-FileCopyrightText: 2019 Bryan Siepert for Adafruit Industries
#
# SPDX-License-Identifier: MIT
from time import sleep
import board
import busio
import adafruit_lsm303_accel
import adafruit_lis2mdl
i2c = busio.I2C(board.SCL, board.SDA)
mag = adafruit_lis2mdl.LIS2MDL(i2c)
accel = adafruit_lsm303_accel.LSM303_Accel(i2c)
while True:
print("Acceleration (m/s^2): X=%0.3f Y=%0.3f Z=%0.3f"%accel.acceleration)
print("Magnetometer (micro-Teslas)): X=%0.3f Y=%0.3f Z=%0.3f"%mag.magnetic)
print("")
sleep(0.5)
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
""" Display magnetometer data once per second """
import time
import board
import busio
import adafruit_lis2mdl
i2c = busio.I2C(board.SCL, board.SDA)
sensor = adafruit_lis2mdl.LIS2MDL(i2c)
while True:
mag_x, mag_y, mag_z = sensor.magnetic
print("X:{0:10.2f}, Y:{1:10.2f}, Z:{2:10.2f} uT".format(
mag_x, mag_y, mag_z))
print("")
time.sleep(1.0)
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
""" Calibrate the magnetometer and print out the hard-iron calibrations """
import time
import board
import busio
import adafruit_lis2mdl
i2c = busio.I2C(board.SCL, board.SDA)
magnetometer = adafruit_lis2mdl.LIS2MDL(i2c)
# calibration for magnetometer X (min, max), Y and Z
hardiron_calibration = [[1000, -1000], [1000, -1000], [1000, -1000]]
def calibrate():
start_time = time.monotonic()
# Update the high and low extremes
while time.monotonic() - start_time < 10.0:
magval = magnetometer.magnetic
print("Calibrating - X:{0:10.2f}, Y:{1:10.2f}, Z:{2:10.2f} uT".format(*magval))
for i, axis in enumerate(magval):
hardiron_calibration[i][0] = min(hardiron_calibration[i][0], axis)
hardiron_calibration[i][1] = max(hardiron_calibration[i][1], axis)
print("Calibration complete:")
print("hardiron_calibration =", hardiron_calibration)
#Author: Jesse Rosart-Brodnitz #Contact: [email protected] #function to read magnetometer over I2C #returns unfiltered xyz #address is 0x1e #requires adafruit_lis2mdl libbrary import time import board import busio import adafruit_lis2mdl i2c=busio.I2C(board.SCL, board.SDA) #reads from i2c ports sensor=adafruit_lis2mdl.LIS2MDL(i2c) #declares device within library and means of connection def magRead():#callable function to return raw magnet readings mag_x, mag_y, mag_z = sensor.magnetic#reads from sensor mag=[mag_x, mag_y, mag_z]#assings to array for storage return(mag)# if __name__ == "__main__": while True: magXYZ=magRead(); print("x: {0:2.2f}, y: {1:2.2f}, z: {2:2.2f} uTesla".format(magXYZ[0],magXYZ[1],magXYZ[2])) time.sleep(.5)
