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 | | Good Times virus warning!
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| Sorry, I can't help myself. I have a 102 deg fever right now and I am not thinking straight. -Fred ------- Forwarded Message <<Subject: Final warning about the "Good Times" virus>> READ THIS: Goodtimes will re-write your hard drive. Not only that, (...) (28 years ago, 16-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.972)
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| | Re: ir obstacle detector
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| In your message you said: (...) en bounce the IR off walls. yes, but the tv remote technology includes automatic gain circuits, so you have no way of telling HOW FAR AWAY the original signal source is. (...) ough? You can use a simple reflectance (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.972)
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fred
(score: 0.972)
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fred
(score: 0.972)
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| | Re: Handy Board Crash
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| (...) Re-load pcode_hb.s19. If the board loses its operating program, when it starts up it runs gibberish, and the value of the motor output latch is randomized. -Fred (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.972)
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| | Re: Newcomer
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| (...) either. some people like the e1 better because it has more flexible timer and counter lines. but the a1 has a simpler bootstrap sequence and is less likely to have compatibility problems with the host computer. (...) No, it's harder than this. (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | more address lines on expansion board
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| Hi Brian, When Fred and I designed the Rev 2.0 6.270 controller, we consciously made the expansion bus small and simple. For most expansion devices, the pre-decoded chip selects make more sense than sending all the address lines, since the latter (...) (28 years ago, 8-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | RE: Motor control
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| Well if you believe in encapsulation it should be 0 to 100.0 %, then the implementation of the motor speed control could give its best effort in that regard. One of the things I hope to do on my Handyboard is set it up to run two of my PIC motor (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | RE: Motor control
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| I would rather have use of the 0 to 8 range because many of the values in the 0 to 100 range simply fall into groups which give only 9 speeds. However, I do not support rewriting the IC code. Tom's suggestion, motor(1,value*14), is simple and meets (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | Re: Servos w/ the handyboard?
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| (...) Yes. Just use the "servo.icb" and "servo.c" libraries that are distributed with Interactive C. This will convert the Handy Board's digital input 9 sensor (which is really a bidirectional counter/timer pin) into a stable servo control line. You (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | Re: Motor control
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| I like 0 to 8 better. Also is there any way to control the frequency at which the PWM works? I find that some of my motors deliver too much at step 1. How about if there was something like: motor( motornum, cycles_on, total_cyles); if you feed (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | Re: Assembling the HandyBoard
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| (...) You need that resistor to stabilize the crystal frequency. Try Radio Shack if it is missing from the kit. It doesn't have to be 1/8 watt, 1/4 or 1/2 watt is fine, just make sure it is 2.2 megaohm. (...) So far so good. (...) There is probably (...) (28 years ago, 26-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | Re: Assembling the HandyBoard
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| (...) The whole issue of null (inverted) connections vs. straight-through is incredibly confusing, because you must take into account the gender of the connector (male pins or female pin sockets) in determining whether it is a null connection. Start (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.971)
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| | Handy Board "To Do List"
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| Hi Fred, I noticed the To Do list on the HB page and just wanted to mention a couple of things: 1) The shaft encoders from the IC distribution work without modification. I've been using encoders.icb and encoders.c successfully. I haven't tested (...) (28 years ago, 17-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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| | Re: HELP! Handyboard ALMOST works.
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| In your message you said: (...) Sorry, testbrd.c and diag.c have nothing to do with the Handy Board. They are part of the older 6.270 board distribution. Get the hbtest.c program from the Handy Board software pages. -Fred (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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| | updating the FAQ
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| Hi Fred, In the ICB faq, could you change: Please note one big GOTCHA with ICB files. On the MS-DOS platform, the ICB files must have Unix-style line termination. OK, what does that mean. to something like: Please note one big GOTCHA with ICB files. (...) (28 years ago, 2-May-96, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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| | Re: High current motors
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| Do you have to choose a transistor that will switch somewhere near and below 9 volts? Cause Fred mentioned that the handyboard is rated for 9V motors. But, does this mean that the pulse generator make 9V square waves? (...) (28 years ago, 4-Apr-96, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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| | How to free up OC2?
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| I believe I can disconnect the OC2 pin from the unneeded IR-Xmit function, so I can divert it for my own use. Would that require any trace cutting, or perhaps removal of the LED Xmitter? Or, better yet, is it all a software change? Fred, I know (...) (29 years ago, 28-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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fred
(score: 0.970)
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| | Re: pcode downloading
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| (...) OK, well I think it is isolated at the pseudo-MAX232 chip. Did you get the +10 v power supply pin on the p-MAX ok? It's at pin 2. Measure it w/r/t ground and you should get +10v. Before you order a real Maxim, check the polarity of your (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 0.970)
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