 | | Time measuring problems
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Hi all, I hope someone out there can help me with this, I'm going nutz (actually i think i'm already there). I am trying to measure a short period of time. Ultimately this will measure ultrasonic ping/echo using Kam Leang's ultrasonic circuit. Right (...) (26 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
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| | What is the best brand/type of rechargeable battery and recharger in sizes AAA-D ?
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Hello, I was wondering what types/brands of rechargeable batteries people have used and recommend for common use in electronics such as alarm clock, portable radios, etc.. Thanks, John Jeong (26 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
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| | Re: 5V of trouble
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those two things together strongly suggest that your crystal isn't running. any chance you can get a scope or logic probe to verify this -- measure the E clock output of the 'hc11 (pin 5). also, check that you've properly installed a 2.2 megaohm (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | 5V of trouble
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i'm assembling the handyboard according to the instructions found on the HB site. When measuring the E clock signal using a voltmeter, i register 5V instead to the anticipated 2.5V. i've re-checked all the solder joints but there doesn't appear to (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Output to file option for IC?
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(...) Here's a stupid idea, but might be the simplest: Run a dumb terminal program. I keep a very old version of Telix for DOS around for this purpose. Most of the dumb terminal programs have some option or other for logging or capturing to a file. (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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