Install USB driver
Download the latest Setting software and USB-TTL device driver for FY-41AP from our
official website: www.feiyudz.cn
After installing the USB driver, plug USB-TTL into your computer's USB port (make sure
TTL port is available). The system will auto-identify USB-TTL and will add a new port (under
COM and LPT). COM1 in "Prolific USB-to-Serial Com Port" is the right one.
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