PM Standard - HW Watchdog issue...


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Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9956
Posted: 07:43am 08 Oct 2025      

Hey Phil.  

Thanks for the offer.
IF YOU HAVE TIME, I would be interested in the results, just for a GP external discrete WD circuit.

Did you see the standard 555 circuit linked to?
That was quite clever, I thought, but MINIMUM power consumption is one of my things, as if the power fails, a backup battery takes over, but with thirsty electronics, that battery won't last long.  

Having said all that, I am working on a totally NEW layout for a PCB module, with the same footprint as the WS-Zero, but using the standard MM2 in SSOP.  No disrespect to the WS-Zero or the PM codebase, but the standard MM2 code has never let me down, and the issues raised in this thread have made me have a bit of a rethink.

If a MM2 module in WS-Zero footprint would be something that the forums would be interested in, I would make all the gerber files available.