 | | Re: battery voltages
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Where on the Handy Board would you plug the 6V into? and what is the J13 connector for? -John (...) (29 years ago, 6-Feb-96, to lugnet.robotics.handyboard)
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| | Re: hmph
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why not use the cars drive electronics, just bypass the radio part, it would take a little work to find the points where the motors are turned on, but it should work. Just watch out for other people with remote control units. (...) (29 years ago, 6-Feb-96, to lugnet.robotics.handyboard)
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| | Enable interrupts within IC?
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Hi all, I'm trying to use IC to poke in an interrupt routine (the IC3 interrupt from pin PA0) assembled using PCBUG11 at $B600. I can set all the register bits correctly, but I can't execute the CLI (general interrupt enable) HC11 opcode from within (...) (29 years ago, 6-Feb-96, to lugnet.robotics.handyboard)
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| | driving 3v motors
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(...) The best solution here is to replace the HB's 9.6v batt with a 6v one. Once you get past the L293's, you'll be giving around 4v to the motors, which should be fine. -F (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | Re: Some quest. for details
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(snip) (...) You will tend to get a lot of flickering if you do not place a sleep() command in your loop that writes to the screen because the screen is being redrawn too quickly. Tom ___...___ Tom Cicatelli cica@tiac.net Melrose, Massachusetts (...) (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | Some quest. for details
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Hi there, last week I've got my HB up and running and it works very fine. I've been playing around with it IC and some questions came up. I hope they are not too boring: - I don't know exactly in which manner sleep() works. It looks like being a mix (...) (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | Re: resistors w/motors?
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At 1:43 PM 2/4/96, Jeffrey Keyzer wrote:>> (...) How about using some power zener diodes to drop the voltage: |----[-power diode+]----[+zener diode-]------| L293D ----| |------| | |----[+power diode-]----[-zener diode+]------| | | [motor] | | (...) (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | 3V motors w/handy board
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Perhaps it would be best if first I could find a solution to this problem - What's the best way to drive 3V motors with the handy board? If I can solve this, I can really broaden my horizons as to the types of things I can use with the handy board. (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | Re: hmph
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(...) Be careful. Cheap RC cars tend to use 3v motors that want to draw a fair bit of current. Expensive RC cars use motors in a better voltage range for the HB (.e.g, 8.4 or 9.6v), but they draw serious current (5 to 10A easy). -F (29 years ago, 5-Feb-96, to lugnet.robotics.handyboard)
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| | Re: resistors w/motors?
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(...) The problem with that solution is that the motors are driven bidirectionally - a regulator wouldn't work when the polarity it was given was reversed. (29 years ago, 4-Feb-96, to lugnet.robotics.handyboard)
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