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Motor ControllersWhat is a Motor Controller?A motor controller takes a low current low voltage input signal and drives a motor with higher voltages and currents. The input signal can be serial, I2C, RC input, PWM, etc. Listed below are the many types of motor controllers () with a brief explanation of each one. For full details of each motor controller go to the item page. Each motor controller item page has supporting links to data sheets, manuals, etc. How a Motor Controller WorksThe output of a motor controller is PWM based, which stands for pulse width modulation. The concept of a PWM signal is to switch the output power on and off really fast in order to reduce the average voltage supplied to the motor in order to precisely control the speed of a motor.  Pulse Width Modulation
Sections on this page:
 
Available Motor ControllersBelow is a grouped listing of various available motor controllers grouped by company. SuperDroid Robots
Devantech
Dimension Engineering
Pololu
RoboteQ
SchematicsBelow are some schematics that may not apply directly to what you wish to do, but will give you a starting point or you can use pieces of it:.
Hooking Up SuperDroid Robots PWM to a RC ControllerOur PWM motor controller can be hooked up to our RC Interface board to allow you to control motors with a standard RC unit. We sell a PWM to RC Hookup Kit that connects 2 PWMs to the RC interface board as shown in the picture to the left. This is our preferred way of controlling a robot with a RC controller and seems to work the best out of all the other methods that we have tried. The top picture is using 1 PWM per pair of motors on our mini ATR, the bottom picture uses a single PWM per motor for our Deluxe ATR. The boards are labeled, you just hook up the brake lines, PWM lines, and Direction Lines together. Wire the PWMs with power, and plug in the receiver to the RC interface board. Hooking Up and OOPic II/II+ Expansion Board to the MD22Our PWM motor controller can be hooked up to our RC Interface board to allow you to control motors with a standard RC unit. We sell a PWM to RC Hookup Kit that connects 2 PWMs to the RC interface board as shown in the picture to the left. This is our preferred way of controlling a robot with a RC controller and seems to work the best out of all the other methods that we have tried. The top picture is using 1 PWM per pair of motors on our mini ATR, the bottom picture uses a single PWM per motor for our Deluxe ATR. The boards are labeled, you just hook up the brake lines, PWM lines, and Direction Lines together. Wire the PWMs with power, and plug in the receiver to the RC interface board. Hooking Up and OOPic-R Expansion Board to the MD22The MD22 can be easily hooked up to an OOPic-R using the Trekker-R Expansion board and our single ended jumpers to go from the headers OOPic-R to the terminal block of the MD22 allowing you to still use all the features of the Trekker-R Expansion board/OOPic-R. Or you can build custom connectors with receptacles to go from the headers to the MD22. You can hook up to the I2C connection or you can drive the MD22 with any servo I/O pins using the oServo object. The advantage of this is you then end up with an interface board that allows you to hook up all the I/O the Trekker-R Expansion board supports. Hooking up the MD22 to the OOPic II/II+The MD22 can be easily hooked up to an OOPic II/II+ by using our double ended jumpers to go from the headers of the OOPic to the header of the MD22. You can hook up to I2C connection or you can drive the MD22 with any of the I/O Pins using the oServo object. As an Extension to this hook-up you can utilize the Trekker OOPic II/II+ Expansion board and drive the MD22s using the servo outputs or I2C and you get all the great features of the expansion boards and your robot will be just like a Trekker only bigger! You can add all the sensors, etc. that the expansion boards support and most of the programs for the Trekker will be applicable. See our controller hook up page for more details. These kits also provide you with battery trays for your controller power. Hooking up the MD22 to the OOPic-RThe MD22 can be easily hooked up to an OOPic-R by using our double ended jumpers to go from the headers of the OOPic to the header of the MD22. You can hook up to I2C connection or you can drive the MD22 with any of the I/O Pins using the oServo object. As an Extension to this hook-up you can utilize the OOPic-R with an Trekker OOPic-R Expansion board and drive the MD22s using the servo outputs or I2C and you get all the great features of the expansion boards and your robot will be just like a Trekker only bigger. You can add all the sensors, etc. that the expansion boards support and most of the programs for the Trekker will be applicable. See our controller hook up page for more details. These kits also provide you with battery trays for your controller power. Hooking up the MD22 to the CM02 RF04 Transceiver LinkThe MD22 can be easily hooked up to an CM02 R04 by standard wire from one terminal block to the 4 pin headers on the CM02. You will want some crimp receptacles to attach the wire to the header. Other devices like a compass or SRF08 can be attached to the CM02 Header too. Hooking up the MD22 to a standard RC systemThe MD22 can be easily hooked up to a standard RC Receiver with wire from one terminal block to the 3 pin headers of an RC Receiver. You will want some 3-ping crimp receptacles to attach the wire to the header.
Be Sure to follow this on our forum and post questions and comments. We will update this page based on the discussion. Thank You. |
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