Here is the code in VSCode for the Boron (d1e154) and OpenMV code (5c93b57).
UART3 for the openMV camera was not sending information to the Boron. We switched to UART1 on the OpenMV camera and were able to have the Boron serial monitor read "Flood" or "No Flood".
Confirming successful flood/no flood transmission from OpenMV to Boron. @BentleySettin, please include a wiring diagram for your successful setup also. I think this issue is safe to close.
Here is the code in VSCode for the Boron (d1e154) and OpenMV code (5c93b57).
UART3 for the openMV camera was not sending information to the Boron. We switched to UART1 on the OpenMV camera and were able to have the Boron serial monitor read "Flood" or "No Flood".
@ebgoldstein @anardek