120A current 250A peak motor driver

http://www.robotpower.com/products/vyper_info.html
Expensive but interesting. Any technical comments about it?

@BlazinH , you are using fairly large DC motors, what set up do you have?

The sabertooth 60x2 is large enough to do the job for me. The RC and analog methods this controller uses operate the same way the sabertooth uses those methods. However, the sabertooth also has serial methods and that’s how I control mine.

The analog (pot) method is a no go unless you are using it with a DAC. But the problem with using digital to analog converters is there is usually only one available on a microcontroller and we need two or more. It would be possible with the addition of an external DAC(s) using I2C or SPI interfaces on many microcontrollers, but that greatly complicates things. A low-pass filter could be used with PWM also to create an analog voltage, but that smoothes the signal and is undesirable except possibly for a slower moving flight simulator.

One needs to know though that these types of controllers should not be considered an equivalent to an h-bridge. They have an h-bridge on them, but it is controlled by a built in microprocessor already. Therefore they wont work with standard h-bridge code and a direction pin or pins, as there aren’t any. A 2.5 volt input signal using analog method with this controller is equivalent to no movement and center position. If you go to a higher voltage the motor moves one direction and go lower it moves the opposite direction. Therefore using this method would require the proper coding to account for this.

The RC method should work though with more than one motor and microcontrollers like arduinos without additional hardware. But one needs to keep in mind here that it won’t work with the same code RC servos use because RC servos have built-in positioning electronics. The arduino would need to be coded to do this too when using a motor and a pot.

K8055 is using DAC control too, and will run the Sabertooth easily at speed and accuracy. K8061 is nearly wrapped up , which will allow the control of 8 sabertooth at once.

Looks pretty cool - Take a look at the OSMC, also from robotpower, If you are into soldering or diy it can be made for around 60$