Simple test¶
Ensure your device works with this simple test.
examples/adxl34x_simpletest.py¶
1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
2# SPDX-License-Identifier: MIT
3
4import time
5import board
6import adafruit_adxl34x
7
8i2c = board.I2C() # uses board.SCL and board.SDA
9
10# For ADXL343
11accelerometer = adafruit_adxl34x.ADXL343(i2c)
12# For ADXL345
13# accelerometer = adafruit_adxl34x.ADXL345(i2c)
14
15while True:
16 print("%f %f %f" % accelerometer.acceleration)
17 time.sleep(0.2)
Motion detection¶
Use the accelerometer to detect motion.
examples/adxl34x_motion_detection_test.py¶
1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
2# SPDX-License-Identifier: MIT
3
4import time
5import board
6import adafruit_adxl34x
7
8i2c = board.I2C() # uses board.SCL and board.SDA
9
10# For ADXL343
11accelerometer = adafruit_adxl34x.ADXL343(i2c)
12# For ADXL345
13# accelerometer = adafruit_adxl34x.ADXL345(i2c)
14
15accelerometer.enable_motion_detection()
16# alternatively you can specify the threshold when you enable motion detection for more control:
17# accelerometer.enable_motion_detection(threshold=10)
18
19while True:
20 print("%f %f %f" % accelerometer.acceleration)
21
22 print("Motion detected: %s" % accelerometer.events["motion"])
23 time.sleep(0.5)
Freefall detection¶
Use the accelerometer to detect when something is dropped.
examples/adxl34x_freefall_detection_test.py¶
1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
2# SPDX-License-Identifier: MIT
3
4import time
5import board
6import adafruit_adxl34x
7
8i2c = board.I2C() # uses board.SCL and board.SDA
9
10# For ADXL343
11accelerometer = adafruit_adxl34x.ADXL343(i2c)
12# For ADXL345
13# accelerometer = adafruit_adxl34x.ADXL345(i2c)
14
15accelerometer.enable_freefall_detection()
16# alternatively you can specify attributes when you enable freefall detection for more control:
17# accelerometer.enable_freefall_detection(threshold=10,time=25)
18
19while True:
20 print("%f %f %f" % accelerometer.acceleration)
21
22 print("Dropped: %s" % accelerometer.events["freefall"])
23 time.sleep(0.5)
Tap detection¶
The accelerometer can also be configured to detect taps.
examples/adxl34x_tap_detection_test.py¶
1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
2# SPDX-License-Identifier: MIT
3
4import time
5import board
6import adafruit_adxl34x
7
8i2c = board.I2C() # uses board.SCL and board.SDA
9
10# For ADXL343
11accelerometer = adafruit_adxl34x.ADXL343(i2c)
12# For ADXL345
13# accelerometer = adafruit_adxl34x.ADXL345(i2c)
14
15accelerometer.enable_tap_detection()
16# you can also configure the tap detection parameters when you enable tap detection:
17# accelerometer.enable_tap_detection(tap_count=2,threshold=20, duration=50)
18
19while True:
20 print("%f %f %f" % accelerometer.acceleration)
21
22 print("Tapped: %s" % accelerometer.events["tap"])
23 time.sleep(0.5)