+- PINE64 (https://forum.pine64.org)
+-- Forum: General (https://forum.pine64.org/forumdisplay.php?fid=1)
+--- Forum: Getting Started (https://forum.pine64.org/forumdisplay.php?fid=21)
+--- Thread: Having trouble reading MPU6050 sensor via I²C on Pine64 (/showthread.php?tid=19979)
Having trouble reading MPU6050 sensor via I²C on Pine64 - Jaxon - 09-04-2025
Hello everyone,
I’m trying to read data from the MPU6050 6-axis sensor via I²C on my Pine64 board, but I’m running into some issues.
System: Armbian
I²C is already enabled, and I can see the device address 0x68 with i2cdetect -y 1
My Python script runs, but the data I get is unstable and often jumps around
Has anyone successfully driven the MPU6050 on Pine64? Do I need any additional configuration?
Thanks!
RE: Having trouble reading MPU6050 sensor via I²C on Pine64 - Alex92 - 09-05-2025
I had the same problem when working with the MPU6050 on a Pine64 board, and a few things made the difference:
Use 3.3 V instead of 5 V to avoid level shifting issues.
On initialization, write to register 0x6B (as described in the MPU6050 datasheet) to wake the device from sleep mode.
To smooth out the jitter, apply a simple moving average or even a Kalman filter depending on your needs.
Once I followed the datasheet’s register setup and wiring, the readings became much more stable.
RE: Having trouble reading MPU6050 sensor via I²C on Pine64 - congb - 10-20-2025
Make sure you're using a reliable library like smbus2 or Adafruit_CircuitPython_MPU6050.
Here's a simple example using smbus2:
Code:
import smbus2
import time
bus = smbus2.SMBus(1)
address = 0x68
# Wake up MPU6050
bus.write_byte_data(address, 0x6B, 0)
def read_word(adr):
high = bus.read_byte_data(address, adr)
low = bus.read_byte_data(address, adr+1)
val = (high << 8) + low
return val
def read_word_2c(adr):
val = read_word(adr)
if (val >= 0x8000):
return -((65535 - val) + 1)
else:
return val
while True:
accel_x = read_word_2c(0x3B)
print("Accel X: ", accel_x)
time.sleep(0.5)RE: Having trouble reading MPU6050 sensor via I²C on Pine64 - biketool - 10-21-2025
If you or anyone reading this have the skills a joystick driver for the gyros would make playing games and emulator much better than using an external device.