 | | More information for debugging my problem
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I'm the one with the dead HB. When I look at R14 (next to the SPI header) it is black and is very hot. Do I have a dead resistor? Thank You Peter Eacmen BLS petereacmen@usa.net (28 years ago, 30-Jan-99, to lugnet.robotics.handyboard)
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| | URGENT Please Help my HB is dead :=( !!
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I had my robot in a box for about two weeks when I went to turn it on the battery was dead. Now when I turn it on nothing happens the LEDs don't go on and nothing happens, except I can smell burning. When I touch the 6811 it is a bit warm but not (...) (28 years ago, 30-Jan-99, to lugnet.robotics.handyboard)
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| | sonar sensors
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Hello, I know that this is slightly off topic, but does anyone know of a company that sells a stand-alone sonar ranging unit that works from 0" to 20"? i know that poloroid makes the one made to be interfaced with a microcontroller, but do they make (...) (28 years ago, 29-Jan-99, to lugnet.robotics.handyboard)
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| | Re: ** voltage dropping and current limitting**
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I have a transformer, when powered by 110 vac I get 16 vac out. I put it through a bridge rectifier and the problem is when I put a cap say 20v 1000uf across the + - of the rectifier, the voltage jumps to about 20 vdc. If I omit the cap and attach (...) (28 years ago, 29-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Green mask
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please see (URL) all there in the zip files, including the solder mask (green) layer. f. In your message you said: (...) (28 years ago, 29-Jan-99, to lugnet.robotics.handyboard)
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