# Board - RMDO The DoDo board is a clone of the SPRacingF3 board in terms of CPU pin mappings. See the SPRacingF3 documentation. Hardware differences compared to SPRacingF3 are as follows: * Rev 1 and Rev 2: the CPU is the cheaper version of the F3 with only 128KB FLASH. Rev 3: the CPU is a F3 version with 256KB FLASH. * 2MBit flash size * The barometer is the cheaper BMP280. * It does not have any compass sensor. * Onboard BEC. * Different physical connectors/pins/pads/ports.