 | | 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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| | Picking a PIC
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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 right PIC for the job. The PIC16C7x (PIC16C76) series supports (...) (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 go look at the imagesco page the sensor is the Part number FLX-01 and they are priced at $10.00 each. This is where I got my $10 quote ;^( I guess there was a 50% raise in the price since Fred Martin updated the FAQ... Thanks anyway. -- Eric (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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(...) they look fairly interesting to implement bumpers or to use in wall following activities but I can't find them anywhere. (...) (URL) On this page Fred gives the addresses of many Robot Matériel Suppliers (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Line follower
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Hi, I'd like to use the line follower C routines included with the handyboard software. What type of sensors do I need, where can I find them, and are there schematics for connecting them to the handyboard? Also, I would like my handyboard to (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | questions
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Hi all, Could someone tell me how the "IR_signal" function works, please? What parameters must I pass to it? Thank you -- John A. Atkinson-Abutridy EMAIL: atkinson@inf.udec.cl Profesor Asistente Dept. de Ingenieria Informatica URL: (URL) de (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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