 | | Re: MOTOR DRIVERS
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It won't necessarily fry the chip. L293s (and the TI equivalent) have a thermal protection mode. If the chip gets too hot, it will turn itself off. Most of the time, this protects the chip against over-current. However, it is still possible to fry (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: MOTOR DRIVERS
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(...) Hi Paul, I think it would take out the chip, but I am currently doing this by installing a oversize heatsink & fan to the controller chip and pulsing the motor instead of constant current. Exceeding the max current capacity but, limiting (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: MOTOR DRIVERS
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Answer it'll fry the chip Question? Why would you even want to do that? (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | MOTOR DRIVERS
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Question? When using a motor which will exceed the driver chip max current, will that fry the chip or the handy board? Paul (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Compiler Errors keep my board from loading
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Help!! I don't know how to fix compiler errors! Specifically, I received the following error: "Compiler error! 47 extra bytes left on board stack. " and I don't know how to fix it. I do know that I cannot load programs on my board until I fix the (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: What can I do with a robot?
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Adam, As far as interfacing to external devices, the inexpensive ones are wheel encoders, IR ranging, bumpers, sound sensors and visible light sensors. You can get much more involved by adding compasses, GPS, video vision and so on, but the cost (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | What can I do with a robot?
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A question for all of you fantastic robotics enthusiasts out there: I have to do a final year project next year, and I'm getting a head start on designing it. I've been told that I can do pretty much what I like with a robot, as long as it has a lot (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Analog port shaft encoder
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Rob, I use these same encoders just as you do, and they work fine. However, the spacing of the encoders from thier targets is important for proper function. 1.5 to 2 mm works well for me. In addition, I have had to play with the encoder high (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HC11 pink book
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Adam, Here are three books for your MCU: M68HC11RM/AD is the M68HC11 Reference Manual M68HC11A8/D is the M68HC11A8 Technical Data book M68HC11A8RG/AD is the M68HC11A8 Programming Reference Guide They are available at: (URL) this helps, - Nick - (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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| | How do I connect 100 photocells to my handyboard?
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Hi, For a project I'm working on, I need to track the output of one hundred (100) photocells. I don't need great accuracy on any of them, but maybe a ten-step resolution at the most. Is there a relatively standard or well-known method to gather (...) (25 years ago, 25-Oct-99, to lugnet.robotics.handyboard)
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