Vex to Lynxmotion Handshaking

I am having trouble figuring out how to code my Vex V5 Brian to send and output into my Lynxmotion arm. I have them connected through a breadboard, but am unsure how to code so that my VEX V5 brain controls the start sequence for my Lynxmotion arm.

@jtd Welcome to the RobotShop Community. Chris and Jim via Project Lead The Way (PLTW) put together tutorials on their site which should be able to help with your situation:

https://chrisandjimcim.com/category/robotics/lynxmotion/tutorials-lynxmotion/

They include nice diagrams with a breadboard between the VEX Cortex and the SSC-32U.