Re: $15 serial to wifi module HLK-RM04

Traumflug Wrote:
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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.

Thanks for the info. You are of course correct. I had a little more time today to look at it. I remade all the connections and tried again. With a little bit of encouragement I managed to cajole the HLK-04 into life.

And guess what.... It works! Not only that but with a little port forwarding I can now control the printer from anywhere in the world! Not sure that I want to, but technically it appears possible. Great if you are on your way home I suppose. You can pre-heat the printer :) Not sure I would want my printer exposed to hackers though... Gawd only knows what prints you would come home to (Assuming they did not burn down your house!)

That is cheap web control. Thanks to the OP for bringing this one up. i will create a guide for this tonight and post it on my website.

Here is a guide to getting this up and running