VisorCentral.com
Show 20 posts from this thread on one page

VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- How To / Troubleshooting (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=2)
-- Serial cradle schematic (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=2175)


Posted by rslatkin on 01-21-2000 03:36 PM:

Question

Does anyone know where I can find a schematic for the serial cradle? I downloaded the developers kit, but that just had mechanical information and pin assignments.

Thanks!


Posted by utz on 01-21-2000 03:59 PM:

Post

Check out this thread for details on how one person converted their USB cradle to a Serial cradle.
http://discussion.visorcentral.com/...TML/000090.html

There is a link to a schematic. After the person did the conversion they received their serail cradle from Handspring, and it was very similar to the conversion.

I built a serial cradle from this schematic. I put a push button switch on pin 3 of the visor that momentarily grounds the pin, this is how the visor knows to start a Hotsync. So you can have instant Syncing, like the real cradle. I also used a 78L05 regulator instead of a 7805, (be careful of the schematic because the 7805 pins are numbered wrong.)

One more note, you can buy a connector that plugs into the bottom of the visor from ATL Technology. www.atlconnect.com for about $3.

Justin


All times are GMT. The time now is 07:05 AM.
Show 20 posts from this thread on one page

Powered by: vBulletin Version 2.3.4
Copyright © Jelsoft Enterprises Limited 2000 - 2016.