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Re: $15 serial to wifi module HLK-RM04

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There is no technical need for auto-reset. It's more a convenience for easy firmware upload. In fact, Melzi has a jumper to turn this off.

If you don't reset, you find the controller in exactly the same state you left it the last time after reconnecting. Or in the just-after-reset state if you cut the power in between. Works fine for printing.

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