[chbot] Reprogramming ESM-1000 displays at Monday's meeting.

[Richard Jones]

I don't have any ESM-1000 displays as I had no use for them at the last
meeting. But if Kerry or Mark bring along more I would quite like to bag a
few and unlock them for use as a smart ventilation controller.

Richard

On Fri, Jun 14, 2013 at 2:12 PM, Robin Gilks <robin at gilks.org> wrote:

>
> > I have come up with a procedure to enable the ISP port on the displays we
> > got at the last meeting. This then allows unrestricted reprogramming of
> > the
> > device. I have had success with all three displays I tried it on.
> >
> > The connection between the reset IC and the MCU must be temporarily
> > broken.
> > I just removed (and later replaced) the reset IC but there are other
> > options we can explore. Cutting the reset pin directly on the MCU may
> > work.
> > The relevant trace on the PCB is somewhat obscured by the smart card
> > socket.
> >
> > I will bring my gear along to the Monday meeting for anyone who wants to
> > unlock their display. It would be good to get an idea of how many there
> > are
> > to do - can you please respond if you want to do this to your display. It
> > would be helpful if you could prepare by opening the case and removing
> the
> > four T5 screws holding the main PCB down. There is no need to remove the
> > LCD.
> >
> > Spencer
>
> I have 3 that it would be good to unlock...
>
> --
> Robin Gilks
>
>
>
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