Thread: 1 Encoder, 2 Jaguars
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Unread 03-10-2011, 11:45 PM
Deetman Deetman is offline
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AKA: Kevin Dieterle
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Re: 1 Encoder, 2 Jaguars
Here is my interpretation/design from the discussions that have taken place here.



Please note that this is only for 2 Jaguars. This setup aids how 1712's robot is setup instead of having everything on one central board.

I'm pretty sure R1 and R2 need to be decreased in value here since I am using one pull-up per encoder input to feed two diodes in the opto-isolator. I need to look at the datasheet again for the PS2501 to verify the If of the diodes.

I didn't want to remove the schmitt-trigger inverters on the input since they will help with some noise. Availability of non-inverting schmitt-trigger buffers is fairly limited so as a result the inverters on the output of the opto-isolator are still required. Feel free to substitute appropriate HC04 and HC14 parts from those listed as I just used what was available in my part library here.

For those of you electrically inclined please review this for me. I very easily could have made a mistake as I didn't spend as much time on this as I really should. It'd be nice to catch an error now before I get some PCBs made.

Kevin
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