 | | RE: Burning hot motor driver chips.
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(...) I wouldn't say it's partially correct, I would just say that the drive motors used in RC (radio controlled) cars are picked out to make the car go fast, and hence require a lot of current to produce this speed. They are readily available at (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Burning hot motor driver chips.
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So I guess RC servos/motors are regular servo motors and DC motors that have been stripped from RC cars? Are they any diferent from regular servo/DC motors? If not, then why lable them as "RC"? Since the RF component isn't there anymore... :-/ (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Burning hot motor driver chips.
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(...) Well, that's partially correct. The RC cars usually have a speed control/ steering module that incorporates the RF receiver. This module supplies PWM signals to the drive motor and also controls a steering servomotor. Marco A.A. de Oliveira (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Burning hot motor driver chips.
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So am I correct to assume that an RC motor had a built in RF reciever? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Burning hot motor driver chips.
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(...) I believe that's correct: Radio Controlled devices, RC devices. Marco A.A. de Oliveira assfalk@eece.unm.edu ---...--- Autonom. Robotics (SMART) Project UNM/NASA ACE Center ---...--- (URL) ---...--- (...) (27 years ago, 11-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Burning hot motor driver chips.
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What does "RC" stand for anyway? I don't think it's Radio Control...is it? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
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| | Re: L239
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Jonathan: I have _dozens_ of L293's as well as L298's with motor controller circuit boards i would be pleased to sell to you if you like. L293's for $5.00 canadian. If you would like to see the motor controller, check my website at (URL) under the (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
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| | Re: L239
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Hi, I got L293E (the 20 pin DIP package) from Mouser at $2.53 each. 800-346-6873. John Bachman (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
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| | Expansion Board
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It would be nice to see a set of raw, addressed digital OUTPUTS (as well as) analog OUTPUTS on the board. Maybe they are already on the handy board itself, however, they are not addressed on the data bus. The IC code libraries needed for this would (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
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| | L239
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Does anyone know of a good source for the L293D or th TI SN754410? Future Electronics has them, but they want roughly $9.00 per chip. I am just looking for 4, but I don't want to be charged an arm and a leg to get them. Thanks ___...___ ___...___ (...) (27 years ago, 10-Nov-97, to lugnet.robotics.handyboard)
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