 | | Shaft encoder sensors...
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Can anyone help? My team is trying to get a shaft encoder to work, but cannot find a chip that will work correctly to count the black and white stripes on the wheel. We would like to use a chip which can be connected directly to the digital inputs (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Stupid Sonars
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I have a extremely complicated two polaroid sensor set up going on... I had a diode connected to each of the ECHO lines so that I can combine the two lines together... However, no signal passes through this setup... However, I have validified the (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Timer display
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Hi, I would like to display a clock on the LCD display using the real-time interrupt of the 6811. But it does not seen to work at all. Does anyone have done a similar clock on the handyboard ??? Regards, James (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: IR output
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In response to: (...) Could a hardware expert (Fred?) please give a more definitive answer to this? What value resistor should be used? After extensive IR use with just an IR led and no resistor my transmission circuit eventually died... I guess I (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | lib_rs.lis, nevermind.
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Sorry, I wasn't thinking, doh! (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Sharp Ir and Eltec 442 Pyro detector
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Hi guys, I was wondering if anyone of you could help me. I'm trying to connect a hacked version of a Sharp GP1U58Y Ir detector(hacked so it is now analog instead of digital) to the HB so as I could use it for Ir Proximity sensing or distance (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | lib_r2.lis ?
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IC can't seem to find: /usr/local/lib/ic/lib_r22.lis Is this important? Where is it (not anywhere on my box.) Thanks all. (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Problem
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Yes there are two four pin connector along the fornt edge of the expansion board that connect to J13 and J8 on HB, one 8 pin (2 rows of four) that connects to jumper J6 on the HB and one 10 pin that plugs into the expansion bus J3 on the HB. Hope (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Downloader, nevermind
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I have the ic-src-unix file, and see it in the tree, sorry. (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Diodes for sonar don't cut it
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I promised to update all you ultrasonic types on my progress (or lack thereof) in connecting two sonar modules to the HB. Well, I still haven't figured out if there's a way to connect two sonar module echo lines to the same TIC port on the HB. The (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Downloader for Unix
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Where might I find the downloader program dl for Linux? I know it exsists, but cannot find it on the MIT/Handyboard site. Thanks. (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re:
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Will - - I'm also working on implementing multiple sonar sensors on the HandyBoard. My intention is to mount 4 transducers using Adam Cox's multiplexor. At present I'm struggling with the software attempting to reduce false readings and increase (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re:
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(...) I'm still working out the best way to connect two sonar modules to the HB (using two complete module board/transducer sets). Both modules ping, but I'm getting signal contention with both echo lines connected to the same TIC port. Probably the (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensors
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(...) I don't know much about electronics, but here are a few hardware questions that others have asked me: Can you verify that each sonar works ok all by itself? Are you using two separate sonar module boards, one for each transducer, or are you (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Expansion Board Problem
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We assembled the HandyBoard ourselves and everything seemed to go great. However, the new set of analog inputs does not seem to be reading in values correctly. The input always seems to be stuck at 250 (The handyboards inputs still work fine.) I've (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Sincere apologies
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Hello every one, I sent the unsubscribe request by mistake to the list instead of Fred. take care Amit =) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: msleep function in ICC11?
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Dear Ranjit, I do not know much about ICC11, but if you can get the system time using some function, you can write an empty loop using while{} or do{}while until the time delay is over. Yours sincerely, Nitin (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Type conversion.
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Dear Federico, Typecast the integer into float. ie write the statement as dtemp=(float)temp*3.5 Refer to any C book for information on typecasting. Yours sincerely, Nitin (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: please remove me from mailing list
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For getting out of the mailing list, send an e-mail to Fred Martin at fredm@media.mit.edu and not to the mailing list. Read rules sent to you when you first joined the list. (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re:
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See www-personal.engin.u.../~johannb/ for a detailed paper on EERUF (Error Eliminating Rapid Ultrasonic Firing). Using the algorithm described there, he used 12 sonar sensor at the same time - allthough I don't know if the HB is powerfull enough for (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: asm -> icb
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hi, based on the code that some of sent me i wrote a (bash) script for linux, but i still get differences in the "cre" part of the file, and more specifically in all lines after the "*" (all numbers are off by two). any ideas what is going on? (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: IR output
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You can connect an IR LED to it. Maybe you may need a series resistor to limit the current through it as well. Basically, the IR LED acts as a transmitter (the same round thing in front of your remote). The demodualator is not a transmitter...it is (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Re: unsubscribe
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dear amit (& others), sending messages to "handyboard" will NOT get you removed from the list. The only way to get removed from the list is to read the instructions and follow them. These instructions may be found at (URL) luck. this may be a (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | IR output
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What type of IR component do I need to attach to the Handyboard to allow the IR output to function? Searching the FAQ and documentation only showed the connection circuit up to the point of the header strip. I assume it wouldn't be the same as the (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | unsubscribe
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I would like to get off the handy board list for a few days. I am having some email Overflow problems thanks you =) take care Amit Bhavsar (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Sonar Sensors
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Ok... both of my sonars are now fully functional and clicking like they should... I took the test prgram from the website and changed some of the values to make it use D3 for the other sensor... Here is my problem though... When I output the values (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: asm -> icb
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(...) The assembler is available at (URL) word of caution: it doesn't seem to work for really-really small programs like you might try for your first test. It seems like you have to have a hundred bytes or so of code before it gives correct results. (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: RF VIDEO?
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(...) You can get an Audio/Video transmitter that uses UHF from Marlin P. Jones (www.mpja.com) for $18.95. It has standard RCA female inputs for 1V P/P Video @ 75 ohms and .1-1V RMS audio @ 600 ohms (they sell an audio board for $3.95). Both run on (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: asm -> icb
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(...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | (no subject)
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Has anyone connected more than one sonar sensor to the handyboard? I'm looking to use the handyboard to connect six sonar sensors to my pc via the parallel port. I'm using C to talk to and readback from the parallel port. The sensors can be fired (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | asm -> icb
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hi, looks like i cannot find the shell script (as11_icb) that assembles an asm file and packs it into an icb file. in theory it should be with the pcode source distribution but it doesn't seem to be there. i'm sure i am missing something. could (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Polaroid Sonar problems
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Guy wrote: <snip> (...) The numbers you're getting may correspond to the length of the blanking interval, which would suggest that the transducer is still ringing when blanking ends. You might try increasing the blanking interval so that you're sure (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Linx technologies RF modem
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doug@knowpeace.com wrote: <snip> (...) I did some reading about the new PSC1000 CPU, and it seems like the ideal next step in the evolution of hobby/research robot controllers. I especially like the support for Java and networks. Not being a (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | how to use a 4*20 Display with the HB
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HI, I'd like to use a 4*20 display, and i think i have to rewrite the pcode.... Have someone done it already for a 4*20 display ? if, someone have ,can you send the pcode to me ? or can someone give me instructions how to change the code ? thank You (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Polaroid Sonar problems
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Hi! I know this has been dealt with before, yet I couldn't find a good answer in the mailing list archive. Maybe someone could give me a hand, I've been having problems with the sonar connected to my HB. I followed the directions on the web page, (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Linx technologies RF modem
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Dave, I'm looking seriously at the Linx HP eval kit. Please let me know how yours works out, and any tips on installation to the handy board would be greatly appreciated. Also, what if I wanted to put HP RX/TX on two robots plus host computer, I (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Unsubscribe!
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Please unsubscribe me from this mailing list. Thank You! (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | Re: msleep function in ICC11?
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You can't use the one in the library I wrote? (its available on the iccll web site) Basically msleep spin locks on the timer waiting for systicks to increment the appropriate number of milliseconds. If you aren't using my code you can do the same (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | msleep function in ICC11?
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I have a HB w/exp brd and a PortMaster (a stock board with a 68HC11E1, 68HC24 port expansion and 32k ram). I'm programming the HB with IC3.2 and the PortMaster with ICC11v5. I am hung up trying write a funtion similar to the HandyBoard 'msleep' (...) (26 years ago, 20-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Linx technologies RF modem
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I managed to speak with one of Linx's applications engineers- He said that a couple of the guys over there are using the Linx modules to communicate with HC11's, so interfacing the kit with the handyboard shouldn't be much of a problem. He said I (...) (26 years ago, 19-Feb-99, to lugnet.robotics.handyboard)
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