Manual

Step 12: Make sure the

transmitter is on. Reboot the

system by removing power to the

Sabertooth and waiting until all

LEDs go out. Then power the

sabertooth back up. Move the

transmitter joystick. The motor

should move with the transmitter

joystick like a servo motor would.

The kangaroo system is now

tuned. The Kanaroo will

remember the range you have set

and the tuning parameters to

keep the motor under control

from this point onwards, even if

you remove power. You can, of

course, retune if you want it to

have a different response.

Further explorations:

Speed limit

The maximum speed of the motor is set with the #1 speed limit potentiometer. Turning the

potentiometer towards the kangaroo’s input will make the motor move to the commanded position

slower. Try turning the speed down to about 10% as shown in the picture and then moving the motor.

Velocity control

Kangaroo can also be used to set a controlled velocity, which acts like the cruise control on a car. Switch

to velocity mode by setting DIP switch 3 to OFF. Command a very slow speed with your transmitter, and

try to stop the motor. With most motors, you will find this very difficult, if not impossible. The Speed

Limit potentiometer is used to set the maximum speed, just like in position mode.

Analog input

Kangaroo can use an analog input source rather than R/C as shown in the example. You can use this with

a potentiometer to dial in a position or a velocity. DIP switch 1 on the Kangaroo controls analog or

digital input. Set DIP switch 1 to OFF for analog input. Connect a potentiometer to the input, with the

wiper going to the S1 input and the outer terminals to 0V and 5V

Two motors

Kangaroo can control one or two motors, either independently or Mixed together for differential drive

vehicles. To use a second motor, plug the motor into the M2A and M2B outputs of the Sabertooth, then

connect the encoder to the #2 feedback input, and the control signal to the S2 input. It will be necessary

to tune again. Kangaroo will detect there is a second motor being used automatically.