 | | IR Detection
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Hi Everyone: I am trying out the infra red emission and detection with the Handy Board. I have succeeded in the emission part but the detection circuit is not working. I know that the emitter LED is fine , with the help of Radio Shack Infrared (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Other LCDs
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Drew I picked up a 20x4 LCD from B. G. Micro (see their on-line catalog at (URL) and view page 2 - the LCD is the one in the upper right at $8.95, part number LCD1002). For 2x16, it will work just plugging into the HB. I poked memory locations (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | HB woes
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I'd appreciate mucho any help and ideas you all have I am building my HB, finally got the caps and crystal osc. working, and ran the HBDL program to download. All good and fine. I go off and solder in the transparent latch, and while doing so I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Motor output
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(...) The motor controls in the Handy Board library supports only 8 levels of power. Upgrade! Get the Smooth PWM version made by Julian Skidmore in the software contributed page on the Handy board web site ((URL) will have to do multiple things: 1- (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Motor output
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Hi! When I work with the motor outputs, I found that the outputs are not linear. The "motor(m,p)" changes the output only in an increment 10 of p. Is there anyway I can get a more presiced output? Thanks. Keith (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Implementation question
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Hi All! I'm having exactly the same problem! The download seem to work correctly but after switching off and on the board again it seem not to start over. I have momentarily used another reset device. I dont know exactly the specification but it (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Voltage for the DC motor
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HI, Currently, I'm using 2 dc motors to drive my robot. The voltage of the motor is 12v rated. and the rated current is 300mA. These motors are directly plug into the HD for use. As a result, the robot cannot travelled fast and sometimes halt (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensor Problems
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michael lang kee wrote: <snip> (...) An occasional sporadic reading is normal and can best be handled by returning the median of three readings. Very noisy sonar data like yours might be attributable to noisy power to the board, a weak connection, (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Other LCDs
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Can someone point me in the direction of using a 20 x 4 LCD. I saw a reference on the HB website about recompiling the IC source with a command line switch specifying the LCD dimensions. What do need to recompile, only the P_code.s19 file?? How do I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Picking a PIC
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In a message dated 98-10-27 13:58:13 EST, ben@wirz.com writes: << Hi Fred, Good to hear from you, feel free to post this to the list. I feel that the flash parts are easier to use because you don't need to wait for the UV eraser to do its things (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Handy board questions (fwd)
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---...--- Michael Kee - mlkee@unm.edu - ___...___ ---...--- Forwarded message ---...--- Date: Tue, 27 Oct 1998 19:40:38 -0700 (MST) From: michael lang kee <mlkee@unm.edu> To: Fred G Martin <fredm@media.mit.edu> Cc: mlkee@unm.edu Subject: Handy board (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Sonar Sensor Problems (fwd)
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oooo$$$...$$$oooo oo$$$...$$$o oo$$$...$$$o o$ $$ o$ o $ oo o$$$...$$$o $$ $$ $$o$ oo $ $ "$ o$$$...$$$ $$$...$$$ $$$...$$$o $$$o$$o$ "$$$$$$o$ o$$$...$$$ $$$...$$$ $$$...$$$o $$$$$$$$ $$$$$$$ $$$...$$$ $$$...$$$ $$$...$$$ $$$...$$$ $$$...$$$ (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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(...) <snip> There was a guy on the HB list a few months back offering to sell bend sensors for a reasonable price. I figured that if he's into robotics, then he's probably one of the good guys. I took a chance and sent him a few bucks, but I (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: C compiler
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Joe, Your question implies that Interactive C does not compile to byte code, so I thought I should take some time to post an explanation of how IC works. Actually, Interactive C does compile, and in fact does compile to byte code, which is then (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | 68HC11A1 vs 68HC11E1
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Hi Folks, I'm not actually subscribed to the Handyboard list as Fred is traveling an unable to add me to the list. But I was hoping someone could take a moment to clear up my confusion on why the documentation occasionally refers to the E1, while (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: My first servo try! Cool! (C Question)
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(...) easy way: for (angle=1; angle<10; angle++) servo_deg((float)angle) better way: modify functions from servo.c to accept integers: int servo_deg_int(int)angle) { return servo(degree_to_pulse(angle)); } int degree_to_pulse_int((int)angle) { int (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Picking a PIC
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Clem: In a message dated 98-10-26 23:31:56 EST, you write: << I'm looking to offload the processing of IR proximity sensors and ultrasound to a PIC(s). I'm hoping to connect the PIC to a HandyBoard via the SPI. << I'm trying to decide which is the (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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This is correct, although the bend sensors aren't all that great. I've got the glove and the accuracy isn't very much, about the best you can expect is what they've got from the glove , ie 4 different bend positions. But if this is enough for your (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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If you get your hands on a Nintendo power glove you'll find some in the fingers of the glove. That's what I've been told! -----Original Message----- From: Eric Noyau <noyau@apple.com> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor.
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You can also check out this homepage: (URL) describes how to connect stepper motors to the handy board along with programming examples. I hope that helps! -----Original Message----- From: Keith - Lui <luikeith@egr.msu.edu> To: (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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