After a few omissions on my part I got a good calibration and OpenCat install.
After a few IR commands Bittle freezes or goes into wild servo movement and again freezes. Rebooting Bittle by turning him off and on works again for only a few moves.
I reinstalled Arduino IDE and downloaded a clean version of OpenCat and required libraries, Again got a clean calibration and OpenCat install. Bittle still locks up (crashes) after one or two commands.
I also tried my IR remote from Nibble with the same result.
A design observation. The IR receiver is somewhat hidden by its location.
Vey impressed with the molded plastic parts and overall design and packaging.
Thanks again
George S
It's very likely to be a software problem. Yes, please upload the WriteInstinct.h, and enter "yyy" to reset all the memory and recalibrate. You will need to install version 2.6.1 of the IRremote library and set unused encoders to 0, as mentioned in the configuration chapter of bittle.petoi.com. After that, upload the OpenCat.ino for the main function.