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Thread: Robotics with PIC16F877 anyone??
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:

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

- danM

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Subject (change) Robotics with PIC16F877 anyone??

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