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 | | Re: Bootstrap Mode, Problem
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| 1. first, check if the board can go into DL mode when it is not attached to the host computer. power on with STOP held down, and it should go into DL mode, indicated by both the BATT and PWR LEDs lighting briefly and then turning off and staying (...) (28 years ago, 24-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: IR Subsystem confusions.
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| In your message you said: (...) main purpose: allowing HB's to transmit IR codes that can be rec'd by other HB's or circuits. example -> let an HB run an IR beacon that can be found by another HB. sub-purpose: run IR transmitters for reflective IR (...) (28 years ago, 28-Mar-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: handyboard clock speed
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| (...) yes, this is right. the fastest you can go with the 52-pin 6811s is 12 MHz crystal --> 3 MHz system clock (i'm pretty sure). so this is only 1.5x over the stock HB. so you've got the issue Curt pointed out with not only the downloader, but (...) (25 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Interactive C-OS8 Downloading Problems
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| cappy, did you use my new "6811 Downloader MCL" version? this has been tested on a variety of Macs running system 8.5 and 8.1. please download it from (URL) me know if this works to download from your 6500. have you ever used the serial port on this (...) (26 years ago, 24-Jan-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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fred
(score: 1.028)
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| | Re: IR sensor question
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| As illustrated in the hb manual, the QRD and QRB sensors do NOT use modulated IR light. the sensors as wired just turn on the IR emitter like a little light bulb, and the received sensor value is a combination of reflected IR light and general (...) (28 years ago, 6-Feb-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Skiff board?
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| I think it's going to be a Compaq product, actually. It definitely won't be released with the free licensing policy of the Handy Board. It was developed by Compaq and with the support of an MIT student who works for them. From what I know, the main (...) (26 years ago, 3-Mar-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: -POWER GLITCH- message
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| One possibility: make sure you have loaded pcode_hb.s19 onto the board, and *not* pcoder22.s19. when you say "even if I don't move the HB at all after runing for a few seconds the HB usually crashes" do you mean, it crashes with the "-POWER GLITCH-" (...) (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: SRAM and orLCD problem
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| eric, i don't have a definitive answer, but here are two things: 1. You *NEED* the reset chip, whether it's a DS1233 or the MC34064HC, I don't care, but you must have a device that asserts reset (pulls the line low) when the system voltage falls (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Using Port D of the Handy Board
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| In your message you said: (...) ve just read on the Handy Board FAQ that it was not possible. So, where is the truth ??? where in the FAQ does it say that it's NOT possible? If you look at the link (URL) explains how to use Port D as outputs. (...) (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: 9600 Baud / help with pa7
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| (...) Perhaps you have the RJ11 cable wired wrong. Make sure you have the ground signal and the data from pa7/digital 9 connected. see below... (...) Looking at the digital and analog sensor headers: live signal [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Toy motors
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| sorry, send my msg before it was done. right, this is a good answer. you buy a device called an "electronic speed controller". this connects like a servo to the HB and has outputs to drive high current DC motors. you also connect a separate power (...) (26 years ago, 23-Jan-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | the Expansion Board 3.0 beta program
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| Dear all, The design for the Handy Board Expansion Board is done, and I am now sponsoring a limited beta-test program. I know that many of you have been waiting a long time for the board, and I will be asking most of you to wait a little longer as (...) (26 years ago, 14-Jun-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Hardware or software??
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| (...) This is normal. Here is an excerpt from the testing notes: The Handy Board will display the message ``Press START to test knob...'' on its LCD screen. Press the START button, and the screen will show the message ``Turn knob; STOP to end -> (...) (27 years ago, 1-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Exp Board ETA?
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| Dear all, I must apologize for the long delay and stringing everyone along waiting for the Expansion Board. Even now I hesitate to answer for it is not pleasant to have nothing to show presently. Currently, I am working on the "Advanced Sensing" (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Fw: questions on IC
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| re: #1, in a sense, the stuff you downloaded *is* there, but IC doesn't know how to access it until you re-download. So yes, each time you restart IC, you must re-download your project. re: #2. there are not good reporting tools for memory usage. i (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Inclinometer for Handyboard
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| greetings everyone, this is a reminder to please NOT send 1MB attachments to the list! In the guidelines I sent you when you were subscribed to the list, I stated a limit of 50 KB (that's kilobytes) for any message. Please remember that your message (...) (26 years ago, 9-Jul-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: ni-cads in parallel
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| Don't do this. First off, you won't get more current, nicads already can deliver gobs of current, enough to be dangerous. You want more amp-hours, not more instantaneous amperage. Secondly you will have problems with cells charging each other. I (...) (28 years ago, 6-May-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Rob Gaunts Last Message
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| Whoa, i just realized that the instructions *are* correct. Here's why. For this voltage test, the instructions assume you are powering your board from the DC adapter. This should give the 15 volts mentioned, unless: * you hooked up the battery pack (...) (27 years ago, 22-Oct-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Help debugging.
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| (...) which pin were you using as ground reference? Maybe redo your test using pin 15 of the Maxim as ground. First check the Maxim is getting good power and ground (pin 15 is ground, pin 16 is +5). Then re-check the voltages on pin 2 (should be +9 (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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