matchMode is "driver", "autonomous", or "disabled". Radio channels include PIT and DOWNLOAD. device.setMatchMode(mode) returns Ok(undefined) on acknowledgement and Err(VexSerialError) on NACK, timeout, or when the connection isn’t open. The device.matchMode setter is deprecated and will be removed in a future breaking release.
Do not change competition or radio state during an active match. Channel changes can interrupt communication.