pin configuration

Check out the FAQ section of this forum…

The Vex Microcontroller FAQ has these links that might interest you…

https://vexforum.com/t/rx1-rx2-serial-port/12318/1
https://vexforum.com/t/multiple-controllers/12628/1
[Interupt Ports - OFFICIAL Tech Support - VEX Forum

I created my own connectors by using longer Pin Headers and trimming them down to Three Pins…](Interupt Ports - OFFICIAL Tech Support - VEX Forum)