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Thread: Robotics with PIC16F877 anyone??
www.piclist.com/techref/microchip/devices.htm?key=16F
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face BY : Dan Michaels email (remove spam text)



Bob Blick wrote:
>Remember that the L293D consumes 80 milliamps when idling. In a robot that
>spends a lot of time not moving, this can kill your batteries in a hurry.
>

Good point - this might kill my project too - hadn't gotten to
breadboarding it yet. No wonder those MIT Handyboards with the L293's
have a hi-current battery charger built right in :o).
=============

>Bridges made by Rohm, and also my design, do not have this problem, draw
>nothing when idle:
>
>http://www.bobblick.com/bob/projects/hbridge/index.html

You've got some nice hot [big, not smoky] motors there too.

- danM

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