I am interested.
Thanks!
Chuck Ulm
"It's hard to slow down when you were born to run!"
________________________________
From: pure-silver-bounce@xxxxxxxxxxxxx <pure-silver-bounce@xxxxxxxxxxxxx> on
behalf of Jose Ramon Garcia Menendez <joseramon1834@xxxxxxxxx>
Sent: Friday, March 23, 2018 7:19 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Compensating Developing Timer
I would be very interested ||| Please mantein me updated. Thanks a lot.
Jose Ramon (joseramon1834@xxxxxxxxx<mailto:joseramon1834@xxxxxxxxx>)
2018-03-23 13:42 GMT-03:00 Tim Daneliuk
<tundra@xxxxxxxxxxxxxx<mailto:tundra@xxxxxxxxxxxxxx>>:
I know some of you here are engineers and may be interested in this ...
I have a Zone VI compensating development timer which I use regularly
and happily. However, with the company now long gone, the "lifetime"
warranty is not of much good :) Moreover, it was an analog device
with essentially only 2 compensating curves.
"So", sez me, "I are an engineer, I can design one" ... and that's what
I've set out to do. The idea is to use modern, cheap digital hardware
and keep multiple correction curves in a table for any developer/film
or developer/paper you wish. Such tables would be kept permanently
encoded in the program firmware and some mechanism (tbd) would be
used to select which one you want.
The current approach involves a Raspberry Pi Zero ($5),
with a $0.99 red LED display array, a $4 temperature probe, and code
in Python (maybe ... I may need to switch to C or Go). Total cost
with SD card and power supply/cable looks to be around $20-30 including
case and footswitch.
If anyone else has interest in such a thing, let me know and I will update
here if/as I make any progress. If not ... I just shut up already ...
--
----------------------------------------------------------------------------
Tim Daneliuk tundra@xxxxxxxxxxxxxx<mailto:tundra@xxxxxxxxxxxxxx>
PGP Key: http://www.tundraware.com/PGP/
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