 | | HB - fast sensor reading
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Hello, I have a clock signal of 5 kHz and an analog signal. (There are in total 128 clock pulses) I need to read in the analog signal every time the clock signal is high. So I need to read the clock signal with at least 10 kHz. I tried this with IC, (...) (28 years ago, 6-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Rayovac Renewal batteries
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Renewals are pretty cool -- they are "true" alkaline in the sense that they have the same voltage, discharge curve, and shelf life. The only bugaboo with them -- and it's a big one -- is that each *cell* must be individually charged. so you can't (...) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Rayovac Renewal batteries
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Hi, I was wondering if anyone has any info on the Rayovac Renewal batteries. According to the packaging, they're rechargable alkaline batteries. Sinch alkaline lasts longer that NiCd batteries, I was wondering if it would be good to use these (...) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Handyboard Parts
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(...) The MC68HC11A1FN is available from BG MICRO. ( (URL) ) The 32K static ram is available from JDR. ( (URL) ) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Returned mail: Service unavailable
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----- Transcript of session follows ----- <<< HELO media.mit.edu <<< MAIL From:<brose@ipa.net> <<< RCPT To:<jwright@seattleu.edu> <<< DATA <<< QUIT mail: /var/spool/mail/jwright: cannot append mail: cannot open dead.letter 554 (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Handyboard Parts
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Well here I am again. I have gotten all my parts except the microprocessor (MC68HC11A1FN), the IR demodulator (IS1U60), and the 32K static CMOS RAM (62256-100LP). I have tried Jameco for the RAM but the Jameco part number 42833 doesn't seem to be (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Got V2X working...!
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Recently I posted a request for help in interfacing the 68HC11 to the Vector 2X, and through the help of readers of these groups, thank you very much, I was able to get it running. It was quite persnickety, with many possible modes of operation, so (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pcode downloading
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(...) Yep, that checks out. (...) I get the correct voltages for the caps. And if the wrappers are on correctly they should all have the correct polarity. I ordered a replacement MAX232CPE (not the high speed "A" version). Hopefully this will either (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Coparison of Sensors
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(...) I agree. You should only have a semi-colon after a while if you dont want that while to loop through any instructions. A semi-colon after a while tells the compiler that all you want to do is continuously test the while condition until it (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Coparison of Sensors
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(...) Looks like you got too many semi-colons. Take out the semi-colons on all the while lines where you want the while to do the following thing. The process is getting to the "while(!start_button());" line and staying there. Also you have too many (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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