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Subject: PIC12C508A-based remote
From: Steve Russell (raichea_at_yahoo.com)
Date: 2002-12-16


Well, I finally found some time to work on the remote control I
mentioned some time ago. I have the unit passing all 6 commands to my
AJBR20 and it responds as expected to single button presses. Thanks are
due to Tjerk Schuringa, creator of the original REMOCON clone, and the
authors of Rockbox for providing most of the information necessary to
implement the device.

I've got the hooks in place to modify the baud rate to compensate for
the wider-than-needed tolerance of the PIC's internal oscillator, but
haven't yet implemented a mechanism for the user to change it. That
said, my development '508A works fine with the nominal oscillator
value.

According to my calculations, a couple of coin cells should last well
over a year, maybe two, but I haven't measured the current consumption
yet, that's something I'll check shortly

When I'm happy with the design, I'll make it available for others to
use.

I do have a couple of questions:
1. I'm using a repeat rate (when a button is held depressed), of about
144ms. The VolUp and VolDn buttons work well with this setting, but the
Next and Prev buttons skip many songs, rather than switching to FF or
REW as do the buttons on the unit itself. This is true of Rockbox 1.4
and Archos 1.27d code. Would someone who has the Archos remote tell me
what it does when the Next and Prev keys are held down?

2. Are there any other functions made available using the Archos
remote?

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Page was last modified "Jan 10 2012" The Rockbox Crew
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