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 Robotics / Handy Board / 5214
5213  |  5215
Subject: 
Re: Toy motors
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Sat, 23 Jan 1999 14:20:17 GMT
Original-From: 
Fred G. Martin <fredm@%avoidspam%media.mit.edu>
Viewed: 
1215 times
  
sorry, send my msg before it was done.

right, this is a good answer.  you buy a device called an "electronic
speed controller".  this connects like a servo to the HB and has
outputs to drive high current DC motors.  you also connect a separate
power supply to the device.  so the configuration is:


+6v (four C cells)
    Handy Board    |
  +----------------+   +--------|-------+
  |                |      |      +Vin      |
  |       servo out+------+servo in     out|-------+
  |                |   |                | DC motor
  |       motor gnd+--+---+gnd          out|-------+
  |                |  |   | ESC        |
  +----------------+  |   +----------------+
      |
      +----- 0v (gnd of C cell pack)

please see the HB servo pages for info on servo drivers,

  http://el.www.media.mit.edu/projects/handy-board/software/libs.html

the motor gnd line is the right half of the 4x1 header immediately
above to the the right of the Stop button.

you can buy the ESC's in all sorts of current capacities.  try tower
hobbies as a supplier.  <http://www.towerhobbies.com/>.

fred



In your message you said:
I tried to use the special RC motor drivers for RC race cars with good luck,
they simply connect to a servo output of the handy board and they work great
and you can get them in a thousand different configurations like fwd/rev and
brakes. They work with PWM so they won't really get very hot and they can
easily handle the high current for these motors.

Good luck,

Jan.




Message is in Reply To:
  Re: Toy motors
 
I tried to use the special RC motor drivers for RC race cars with good luck, they simply connect to a servo output of the handy board and they work great and you can get them in a thousand different configurations like fwd/rev and brakes. They work (...) (26 years ago, 23-Jan-99, to lugnet.robotics.handyboard)

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