What is AC209 1?

It depends on the structure diagram. General merchants will not tell you that its control core (that is, single chip microcomputer) is generally embedded with 805 1. Some chips are multithreaded, and there is no single chip microcomputer. There are also some high-end chips based on cpu with embedded operating system (such as linux).

Key points: ac209 1 does not need MCU control, but directly inputs analog signal control. MCU is embedded in the classic 805 1 architecture (the most common in the industry) and has no external interface.