RA2E1 Fast Prototyping Evaluation Board Renesas Electronics RA2E1 Fast Prototyping Evaluation Board is used to evaluate the features of the RA2E1 MCU. The board can be used to develop embedded systems applications using Renesas' Flexible Software Package (FSP) and e2 studio IDE. Utilise rich onboard features along with a choice of popular ecosystem add-ons to bring big ideas to life.