 | | Re: Desgning H-bridge
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(...) Kam has a design at: (URL) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: H-bridge
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I am currently in search of H-bridges (DC motor drivers) I tried visiting wirz electronics but they aren't in business right now. does anyone know of any other places i can check out? =) thanx Chen (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Expansion Board Servo timing...
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How sensitive are the exp bd servo routines to many processes running concurrently. My servo works fine in a stand alone test file but when I include it in my main code it gets the "nervous shakes", as if the timing pulse is fluctuating ( I don't (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Servo timing...
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Drew- I have a Handy Board on a robot that runs three servos and the GP2D02 sensor, and I have the same nervous jitters problem. However, I do not run any processes on this application. I am using IC under v 3.2 of the software, so I could use (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Rangingproblems with Sharp GP2D02
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(...) I'm looking at the Sharp data sheet, and they have a chart that shows decimal distance measuring output vs distance to object in centimeters, and they indicate the minimum reading to be around decimal 59 to 64 depending on object reflectivity. (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Desgning H-bridge
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Another great source for h-bridge design if (URL) It gives details on how to build a PIC based motor controller, but more importantly, it has a great h-bridge schematic. Be sure to check it out. ---...--- Brian Schimpf schimpfy2@aol.com (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Rangingproblems with Sharp GP2D02
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Hi all I just finished rewriting the GP2D02 routines by Kent. Seems all to work just fine....except that I don't get readings below around 55. Even if I don't have anything in front of the sensor (dist. to wall more than 2m) I never get a reading of (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Desgning H-bridge
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Hey Ericson, Check out the following sites for motor control information: (URL) under motor control Hope this helps, good luck! --kam (URL) Mon, 12 Apr 1999, MAR ERICSON wrote: -->Where can we get info in designing H-bridges from descreet (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Desgning H-bridge
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Where can we get info in designing H-bridges from descreet components? Is it sufficient to use just four MOSFETs or just four solid state relays? Thanks for any input. ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM for IC3.2?
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(...) This problem is the only reason why I'm not buying the commercial version of IC. I'd buy in an heartbeat if *all* the code running on the handy board was available. Until then I stick with the free version. So far I've modified my pcode at (...) (25 years ago, 12-Apr-99, to lugnet.robotics.handyboard)
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