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  • The cabling is maybe 2m long. Baude Rate is 115200... what would be the benefit of a lower baude rate? And how do I know how much I need? Commented Jun 24, 2014 at 11:00
  • Since I thought the error is in my matlab code, I already opend a SE question for that, since this is now more concerning the delay, rathen than the swaps in bits, let's continue there. Your suggestion works! 1/3s sample time gives valid/current time values! Pls help me to fully understand where this could have come from: stackoverflow.com/questions/24368670/… Commented Jun 24, 2014 at 21:08
  • @mike it's not a problem of the Matlab code, it's the Arduino then. You're sending more data than the serial chip can handle at the baud rate you specified. I know I said lower it (I thought info was getting corrupted), but you need to raise the baud rate and lower the sample rate. Commented Jun 24, 2014 at 21:33
  • 25 Hz is possible. That's as high, as possible. However I wanted to debug a quadcopter filtering,... which doesn't quite make that much sense if I run 1/2 or even 1/4 of the planned sampling rate. (I try to get my 100Hz, or at least 50). Also if I add more numbers this phenomenon gets occurs more often I guess? Because it's overflow, right? I'll try to get a shorter cabling, thanks for the advice! Commented Jun 25, 2014 at 7:19
  • @mike Glad I could help! Edited my question and I cleaned up the comments here. Commented Jun 25, 2014 at 20:16