Jump to content
I2Cdevlib Forums

MPU6050 with Arduino Wire length


Recommended Posts

Dear all,

I am using the 6 axis motion app library developed by Jeff Rowberg. For my application I need to have my accelerometer 2m away from my Arduino. The issue I have is that my I2C scanner finds the accelerometer but when I use the Accelerometer code I cannot read any values. If I use a short wire (5cm) I can read the values perfectly fine. I have tried to set my I2C baud rate to a lower value using Wire.setClock(100000); so 100kHz rather than the standard 400kHz but I still get the same result.

Thank you so much for your help in advance.

Best regards,

Tom

Link to comment
Share on other sites

Tom,

I can't give you any help, but I am having a similar issue with the 6050 and 25-30 cm wire lengths.  I can 'see' the device and get data from it, but something hangs up after a few tens of minutes.   I'm still working on what the 'something' is ;-).

Frank

 

Link to comment
Share on other sites

Hi Frank,

Thanks for the reply so basically to give you some feedback on my experience so far. So I tried in the previous days different wires and different combinations and now managed to go up to 3m without any problems and without sacrificing accuracy. There is a permanent good connection now. What I have experienced is that it really depends on the wire. For example with a AWG24 wire (CAT5e) I could only connect either SCL or SDA on the same 8 cable strand, whereas now I am using AWG28 with 10pin Ribbon cable and it works perfectly fine.

In case you need to extend your cable even further than I achieved so far have a look at active I2C extension boards like the one in the link below.

https://www.horter.de/doku/i2c-extender-testplatine_db.pdf

The only issue I now have is connecting multiple MPU6050 at a time to the Arduino DUE while using Jeff Rowberg's I2CDevlib.

Regards,

Tom

Link to comment
Share on other sites

  • 4 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...