HELP 2 ARDUINO MOTOR SHIELDS AND 3 DC MOTORS

oh yes thanks but adafruit doesn't have its current sensor right? so if i wanna use the arduino motor shield which has its own current sensor then what's the coding like if i do the master-slave communication? like how many bytes am i suppose to send over if one arduino unit controls 2 dc motors while the other one controls just one dc motor

ORRR is there an easier alternative to implement a current sensor in that case i'll go for the adafruit

thanks