MattTheGeek 99 Posted October 4, 2012 Share Posted October 4, 2012 The MotorPack is a 4 channel motor controller (Does more than drive the motors) based off four DRV8830 ICs from TI. Each channel can drive up to 1 Amp, for a total of 4 amps. Can drive motors or other actuators up to 6.8V (7V is absolute maximuim). Communication to the motor controllers is done through I2C. An on-board voltage regulator can provide power for the launchpad. Status: Design Editing. Log 10/24/2012 Designing in address select logic to enable stacking two motor control booster packs. Quote Link to post Share on other sites
VirtualEnder 3 Posted October 16, 2012 Share Posted October 16, 2012 Will this be able to drive bipolar steppers? Looks like you could drive two possibly? Quote Link to post Share on other sites
Nytblade 24 Posted October 17, 2012 Share Posted October 17, 2012 This is something I might be interested in using. Quote Link to post Share on other sites
MattTheGeek 99 Posted October 23, 2012 Author Share Posted October 23, 2012 Will this be able to drive bipolar steppers? Looks like you could drive two possibly? Each channel can drive: One brushed DC motor (or a solenoid and other actuators) One Winding of a unipolar or bipolar stepper motor Quote Link to post Share on other sites
VirtualEnder 3 Posted October 24, 2012 Share Posted October 24, 2012 Is a mode for steppers provided by the driver chips, or do you have to update each step via i2c? I'd love to be able to simply set a speed and direction via i2c and not have to drive each step! Also will these be stackable at different i2c addresses? Quote Link to post Share on other sites
MattTheGeek 99 Posted October 25, 2012 Author Share Posted October 25, 2012 Is a mode for steppers provided by the driver chips, or do you have to update each step via i2c? I'd love to be able to simply set a speed and direction via i2c and not have to drive each step! Also will these be stackable at different i2c addresses? You have to update the controller for each step, But I'm sure i can abstract that in software. I also could do it with hardware by adding a MSP430 to control the drivers if that sounds more appealing. I can certainly try to add selectable addresses (Either by jumpers or on-board logic). Quote Link to post Share on other sites
MattTheGeek 99 Posted October 25, 2012 Author Share Posted October 25, 2012 That should do it. Edit: Just noticed that the address selection for driver 2 could also be switched around and used for the 4th driver. Saves 2 controlled buffers. Quote Link to post Share on other sites
MattTheGeek 99 Posted November 1, 2012 Author Share Posted November 1, 2012 I will be using the 43oh! MotorPack thread instead of this one on Stellarisiti. Makes it a whole lot easier for me, and probably for you as well. Quote Link to post Share on other sites
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