> On 11/01/2009 04:57, [email protected] wrote:
>> I am looking for a simple list of all the materials that I need to
>> remote control the two 12 volt motors and two servos.If you can
>> keep it simple im only 14 and dont exectly know what every thing
>> is.
The simplest (and cheapest) way to learn about motor control is to build
a "Simple Toggle Control" for each motor as explained in the following
article:
http://www.rctankcombat.com/articles/speed-control/
That only requires a single heavy duty switch and some wiring. Move the
switch one way and the motor goes forward, the other to go backwards and
center it to stop. When you get that working, you can move to the next
step.
To allow for a longer control line, the next step is to replace each
Simple Toggle Control by a pair of inexpensive automotive relays (couple
of bucks each) and then use two pushbuttons (or the toggle switch you
just replaced) to control those relays. That keeps all of the motor
wiring separate from the control wiring, allowing you to use a much
smaller control cable as the remote control. Each motor still works
independently in this arrangement.
The next step is to arrange a collection of diodes between the
pushbuttons and the relays to create the "Tri-Pact Speed Control". This
allows each of the four buttons to control both motors at the same time,
providing forward, reverse, left and right control over the pair of
motors. Diodes are inexpensive as well, so the entire on-off control
system with mixing will be less than $20 US. You can even get a
standard 4-way arcade joystick to use as the controller for a couple
bucks more.
After you've successfully built and tested these basic control systems,
you can then start thinking about wireless control, which entails
purchasing more expensive gear and either using servos to trip the
switches or spending more money to replace the switches and relays by a
proportional speed control.
Frank P.
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