Hi @milesb, Unfortunately the Dynavox I12 does not support the execution of applications written for the Tobii 4C Eye tracker using the Tobii Core SDK as these two systems operate under distinct hardware and firmware versions. In addition, the I12 uses different software stacks which is incompatible with the Eye X engine, conflicting configuration.
I am afraid for the time being custom development on I12 devices requires the use of a separate SDK (Gaze Interaction SDK) that regrettably is not compatible with Core SDK code. My apologies for the inconvenience.