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 | | brushless motors
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| has anyone had any success hooking up brushless motors to a handyboard? basically, the problem i'm having is there is only one gnd pin on the motor, which is both for the internal digital logic and to sink the current through the motor. it's a (...) (24 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
| | | | | 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 (...) (24 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
| | | | | 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 (24 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
| | | | | 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 (...) (24 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
| | | | | 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 (...) (24 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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