commands: eturn: controller: engines_ctrl function: turn estate: controller: engines_ctrl function: set_engine_state espeed: controller: engines_ctrl function: set_engine_speed led_1_on: controller: led_test_1 function: "on" led_1_off: controller: led_test_1 function: "off" led_2_on: controller: led_test_2 function: "on" led_2_off: controller: led_test_2 function: "off" dout: controller: debug_ctrl function: output din: controller: debug_ctrl function: read rgb_red: controller: led_rgb function: red rgb_green: controller: led_rgb function: green #