 | | My first servo try! Cool! (C Question)
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Hi all, I'm still amazed with this Handyboard! I had some free time to play this weekend and hooked up a Servo motor for the first time. It was a small futaba that I got from B&G or Electronics Goldmine (I can't remember which). Anyway, I have a few (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | IR Transmission and Reception
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Hi All: I am new to the handyboard list as I just got my handyboard. I am trying to implement obstacle detection using the IR sensors. my question is that, if I want to have more than one ir emitter LED, ( to find out the direction of the obstacle) (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Other Parts...
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I was wondering if it's ok to use another voltage monitor such as Zetex's ZM33064C (5vcc, 4.6v thresh, sinks 60mA) in place of the Dallas DS1233? Also, is it possible to modify the LCD routines to work with displays other than 2x16. Specifically I (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Stepper motor!!
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Hallo all. Why don't you us stepper motor driver IC. for example SAA1027 Philips (uni- polar) or ucn-5804B Allegro Microsystems (uni-polar) or L297 SGS-Thomsom (uni and bi-polar) This will take care of some problems and your handyboard alive!! for (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Generic Battery Question:
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Howdy folks- I've got a quick question for anyone out there have any experience with power distribution systems using multiple batteries... If I have say six [more or less identical] batteries... am I better off to run them all at once (in whatever (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor.
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Keith, At first blush I would suggest the following connections: Motor Out 0 1 - stepper phase #1 Motor Out 1 2- '' '' #2 Motor Out 2 3- '' '' #3 Motor Out 3 4 - '' '' #4 Ground 5 - stepper common #1,3 Ground 6 - stepper common #2,4 Your program (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar question
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Hi, acroname has the sonar modules for $45.00. www.acroname.com ---...--- (...) to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
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| | Stepper Motor.
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I would like to have my HB controlling a stepper motor. It's a 4-phase unipolar permanent magnet motor. The names of the inputs are like this: 1 - stepper phase #1 2- '' '' #2 3- '' '' #3 4 - '' '' #4 5 - stepper common #1,3 6 - stepper common #2,4 (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar question
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Eric Noyau wrote: <snip> (...) <snip> (...) <snip> (...) <snip> I asked about this a few months back, and Fred Martin himself suggested I might try the very same connection scheme that you mention. Here's what he suggested: <snip> (...) According to (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Implementation question
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I am busy building the HB but I cannot get it to work yet. Here are the symptoms. The serial board works as expected and performs all tests as described in the implementation manual. RAM and HC11 are installed as well as the LCD. I am using the (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Sonar question
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Hi all, I'd like to install sonar capabilities in my robot and I went to the FAQ to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source of 754410 driver
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I think that Newark sells them for about $4.15 each. (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Dead HB
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(...) I´m using that nvrmas on HB and work excellent. You simply put the memory and disconnect the external battery! German Gentile (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source of 754410 driver
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Acroname (www.acroname.com) sells these chips for $5 each or a 3-pack for $12. (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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I tend to agree. Most people think that if the display is dead, the system is dead. The fact that you can download the program is a good sign. I think, you then need to prove that it was downloaded using simple known commands to establish that it is (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Communication to the board.
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Hi, I need to make a logic programm (eclipse or prolog) control the h-board-robot. Does anybody have any experience with something like that? I come from the AI and logic programming, and I don't have much experience with communication protocols for (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | how to unsubscribe
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hi everyone, *please* don't send unsubscribe requests to the list. send them to me, fredm@media.mit.edu. thanks a lot. fred (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Bootstrap mode
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hi all, i have trouble with my handy-board. Few days ago it works proberly, now i doesn´t go into the bootstrap modus. Both leds (red+green) lights and i can´t download the pcode. I tested the board with and without the serial interface. But it (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Question
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Dear HB members: 1.- Is there any software for controlling two or more IR sensors??? 2.- Could you tell me how does the "IR_signal" works?? Thank you -- John A. Atkinson-Abutridy EMAIL: atkinson@inf.udec.cl Profesor Asistente Dept. de Ingenieria (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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