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'Real' RS232 USB Interface
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Gandalf_Sr:

--- Quote from: coromonadalix on August 28, 2019, 10:30:48 am ---would it be safer to add an polyfuse (auto resettable)  for the vcc supply line ?? in case of excessive currents or a short ?

--- End quote ---
Done.  I added the PTC on the underside of the PCB with a trace through it so it can be added as an option, cut the trace and fit the PTC.

Thanks  :)

Just waiting on the board house to verify the files

Ted

[EDIT] PCB is now ordered, it was only $10 more for 50 vs 25 so I ordered 50, PM me if you want a bare PCB (I'm thinking US$4 shipped in USA which is basically cost to me) but you will need to be able to work on small SMT parts, there's a tiny dual N FET that's SOT 563 which I added to allow the LEDs to run off the 3.3V rail but still have the circuit cope with low VccIO which can be 1.8, 3.3, or 5.0 volts.

I'm travelling until Monday so I won't be able to post (slightly) updated schematic, PCB, and BOM.
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