Sabertooth Dual Motor Speed Controllers - The Robot MarketPlace

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Dimension Engineering's Sabertooth dual motor speed controllers are a versatile, easy way to independently control two motors. They're available in 2 x 5 Amp, 2 x 10 Amp, 2 x 25 Amp, and 2 x 50 Amp versions, each with the same great features and functionality for reliable operation and long life. Each version has a built-in 5V battery eliminating circuit, or BEC so you don't need a separate battery for your receiver. The 5 and 10 amp versions have prewired PWM leads and connectors, but the 25 and 50 amp versions do not. Hookup is simple. On a standard PWM cable, the black or brown lead is ground, the red lead is a positive voltage from a receiver battery or BEC, and the white or orange lead is signal. To connect two independent channels to the sabertooth, you'll need two RC male connectors with bare leads at the other end. Connect both black leads to the terminal labeled 0V, and both red leads to the terminal labeled 5V. Then connect one white lead to S1 and the other to S2. These will correspond to motors one and two, respectively, or in mixed move, throttle and steering, respectively. Connect your battery positive to the B+ terminal and battery negative to the B- terminal. The battery and motor connections are the same on all the sabertooth models. Connect motor one's leads to M1A and M1B, and motor two's leads to M2A and M2B. The dip switches control the various functions of the Sabertooth, such as input mode, low-voltage lithium battery cutoff, exponential response, mixing mode, and serial mode. For more information on setting your dip switches, refer to the user's guide that comes with your Sabertooth. I'm going to demonstrate a simple setup using RC control, with and without mixing. Without mixing, each channel controls ones motor. When you enable mixing, the Sabertooth will allow you to use a single joystick for drive on an airplane transmitter so that when you push the stick forward, both motors turn forward. It also allows you to use a pistol-grip style transmitter with a differential-drive vehicle.

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