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As I mentioned in the previous mail message my IR transmitter on the handy board oscillates @57kHz. I ordered the exact parts# form digikey as specified in the HB documentation and also did the math. The result should be a freg between 39 -40kHz. (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Re: HB IR transmit circuitry problem
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what value are you using for the R4 resistor? There was an incorrect value in some of the Handy Board documentation and it might not be fully expunged. Also, are you using a polypropylene capacitor for C6. -Fred -- This message was composed using (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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I have a question to ask I want to use two 16V (maybe a bit more) motors and one 9V the question is To use either an Opto Darlington Isolator that my supervisor knows about, which uses the digital outputs or to cut the trace close to the J13 and (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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It worked so thanks everybody It was the voltage it needed 12V Thanks again (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | Re: L293 Questions
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warm is normal, burn your fingers hot is not. jm (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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