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After assembling my own handyboard (ugh), and everything was (supposedly) solded OK, i tried to put the handyboard in bootstrap mode. But i get no results... i tested the stop button and it works fine (i compared with the OTHER handyboard i had)... (...) (25 years ago, 30-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Reading Serial Port
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David Boosalis <dboosalis@mail.arc.nasa.gov> moved upon the face of the 'Net and spake thusly: (...) "Use The Source, Luke". Check the source code of the downloader in the Unix port of Interactive C. (...) I think you want 9600, not 921kbaud (unless (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Dead handyboard?
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(...) Antistatic bags are conductive, right? You might have shorted the power to the ground via the bag itself, thereby killing your battery. Once a NiCad cell shorts, then it will can a large amount of current from a charger, possibly killing off a (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Dead handyboard?
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My hb was working fine, I took it on a trip in an antistatic bag. When I took it out of the bag, the battery was completely drained. But as soon as I started to charge it, one of the resistors burned up. So I tried charging it via the interface (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Sharp GP2D12
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Hi all, I want to use the GP2D12 distance measuring sensor with my handyboard. Does anybody know the pinout details for the three pins? Thanks, Thomas (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Sharp GP2D12
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(25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Re: R: Reading Serial Port
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also remember that at 9600 baud or higher, you may not see the flashing of the serial LEDs. try setting the baud rate to 300 or even 110 if you're doing visual-flash debugging. fred In your message you said: (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Reading Serial Port
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It isn't hanging, it's a blocking read until it recieves some specified number of characters. You can use a non blocking read by specifying O_NONBLOCK, in which case read() will return immediately. The Linux serial programming HOWTO is very good, I (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | R: Reading Serial Port
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You can try Java comm API, under linux too. (If you want to use java ... :-) Stefano ---...--- | Da: David Boosalis <dboosalis@mail.arc.nasa.gov> | A: handyboard mailist <handyboard@media.mit.edu> | Oggetto: Reading Serial Port | Data: 29 July 1999 (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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| | Reading Serial Port
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This is not really a HB question, but I am hoping someone here has experience in it anyway. My question is in how do you read the Serial port under Linux. The Linux HOWTO's give an example, which I show below. What happens is that it hangs on the (...) (25 years ago, 29-Jul-99, to lugnet.robotics.handyboard)
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