Will 1st generation motors work with second generation brains?
There are no 1st generation motors, only VEX IQ motors, so yes, any motors you buy, will work on both 1st and 2nd generation brains.
Thank you, I appreciate your help
Just linking this page, for reference.
All of the 2nd generation electronics are compatible with the original 1st generation electronics and vice-versa. This was done to ensure classrooms with mixed 1st and 2nd generation equipment would not have any compatibility issues. Brains, Controllers, Sensors, Motors, and Batteries can be mixed in any combination between 1st and 2nd generation of IQ. The only difference in the generations is that the 2nd generation battery has a new charger. The 2nd generation battery will not charge with the 1st generation charger, and accidentally inserting the 2nd generation battery into a 1st generation charger will not cause any damage either.