arduino + easyVR shield + smart gpu

hi ,

i am tetraplegic , trying to control my domotic house with voice.

how to connect easyVR shield (SW mode) + arduino uno + smart gpu .

(arduino + easyVR shield ---> ok) (arduino + easyVR shield + smart gpu ---> just smart gpu working)

arduino + easyVR shield (SW mode) + smart gpu (rx,tx,3v,gnd) no way.

HELP.

Please don't cross-post. The other post has been removed.