motor problem

johnproko

hello all.
I'm trying to make out of an old rc car a new automated one.
I'm having a problem though with the motors. simple brushed motors that i have solder with old esc taken from burned servos.
i can control their speed but when I'm trying to make it steer hell breaks loose!
just an idea i have on 14 steering and at 12 the motor for driving
for i = 0 to 100
pulsout 14, 3000
pause 20
next

for this both work and I'm having a problem because none is doing what it should.
is it the esc fault? or i need to use other continuing rotation servos?

thank you!

Mike Green

It sounds like you're using a continuous rotation servo setup to try and do what a standard servo is for ... turn a steering mechanism to a specific position. That's not how continuous rotation servos work ... the control pulse sets the direction and speed of rotation of the motor. On a standard servo, the control pulse sets the desired position and the servo mechanism moves the motor until the position feedback potentiometer indicates that the shaft is at the requested position

ValeT

Yeah, that seems like that could be the problem. It couldn't hurt to try other motors and other ESCs to see if they work.