
add_subdirectory(GPIO_test)
add_subdirectory(int_test)
add_subdirectory(timer_test)
add_subdirectory(PWM_test)
add_subdirectory(UART_test)
add_subdirectory(PulseIn_test)
add_subdirectory(shift_test)
add_subdirectory(wire_test)
add_subdirectory(SPI_test)
