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  • RickardThulin commented on taifur's instructable Complete Motor guide for Robotics3 years ago
    Complete Motor guide for Robotics

    Its very easy to controll large DC motors with arduino, using cheap speedcontrollers from ebay. You have the PWM out of a pin on Arduino and thats equal to a ordinary servo used in RC hobby and thats great to controll any speedcontroll. No matter how big motor you have or how big speedcontroller you got.You must have its own power from a battery as large as if you use it to a RC equipment. The large cables in to esc is plus and minus AND!! Just!! Minus to Arduinos minus but you can take the minus AFTER the esc. The one with the servo cable and its there you give the esc the pwm from Arduino. And minus as i wrote but NOT! Plus!If you will use back and maybe break with your esc its a bit tricky to find out where Arduino put the little "pause" between Forward and Backward and tha...

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    Its very easy to controll large DC motors with arduino, using cheap speedcontrollers from ebay. You have the PWM out of a pin on Arduino and thats equal to a ordinary servo used in RC hobby and thats great to controll any speedcontroll. No matter how big motor you have or how big speedcontroller you got.You must have its own power from a battery as large as if you use it to a RC equipment. The large cables in to esc is plus and minus AND!! Just!! Minus to Arduinos minus but you can take the minus AFTER the esc. The one with the servo cable and its there you give the esc the pwm from Arduino. And minus as i wrote but NOT! Plus!If you will use back and maybe break with your esc its a bit tricky to find out where Arduino put the little "pause" between Forward and Backward and that space you must know because some esc will have i short pause betweeen the direction shift and that pause you can program in Arduino if you know where it is. Arduino give the servo 1-180 as servoangle but that is not godd at all because it overload the limit for some kind of servo that not can handle 180 degrees and i have seen it more than for one servo that i broke this " the hard way". I will say that 20-160 is better to run servos at and the middle still is 90.The pause in the esc must not be 90 so you have to figure it out by read the Serial.print (value);Thanks a lot for a very nice instruction for motors, :-)

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