 | | Smooth PWM codefix for 6.270 boards available
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I know this is the Handy Board mailing list...but we are still using 6.270 boards in my course, and I recently finished porting Julian Skidmore's Smooth Pulse-Width Modulation (SPWM) motor routines over to the 6.270 board. This software upgrade (...) (25 years ago, 24-Jan-00, to lugnet.robotics.handyboard)
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| | Re: sonar
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The location(C7) for the .1uF that you are refering to is located on the sonar driver board, on the lower left corner of the ribbon connector. Any non-polarized cap will do just fine. (...) (25 years ago, 24-Jan-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor
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An optical sensor with a filter in front of it. Standard photocell works fine. Three of them, each with a red, green, and blue filter and then sampling the three inputs can be very flexible. --Chuck (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | RE:color sensor and Vision any one?
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(URL) sells a relatively cheap camera/frame grabber package named the ramcam. you access it directly and treat it like a ram chip. The color vision would proboly be easy to interface as a color sensor. And To you Handyboarders out there, would this (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | colour sensor
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what kind of sensor can i use to determine the colour of a surface. cheers fazal (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | Re: sonar
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(...) I would imagine that this is the case since Fred states on his page that it won't work without it on most versions of the driver board. The easiest way to do it is just desolder the two pads that align with the c7 position on the HB. Stick a (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | sonar
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i recently purchased a handy board, an expansion board, and a polaroid 6500 sonar sensor. i installed the expansion board, along with the appropriate libraries. i also plugged the sonar into the expansion board, and used the code for the sonar on (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | HP encoder
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Hi, Does anyone know how to connect HP optical encoder to HP quadrature IC and Handyboard? Thanks. Regards, Will (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | Re: multitasking
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In my reading of it, it will just chew the cycles. Here is the routine msleep(), used to implement sleep. See how it just does a busy wait? I wrote a version (now gone into data heaven when my drive crashed) that would check the time, and then give (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | multitasking
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How clever is the multitasking in IC? If I have a task that I only want to run ever 10 seconds, can I just put a sleep statement at the top of the routine? Will the sleep statement chew up processor cycles, or will IC realize that it should defer to (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | Your site has been included on OpenHere
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Hi, Your site has been included in the OpenHere.com index and search engine. OpenHere is one of the 10 largest index and search sites on the Internet. Your site listing is: Link: (URL) The Handy Board Description: The Handy Board is a 6811-based (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Handyboard C library for m6811 gcc port
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Curt Mills, WE7U writes: > I was going to get to modifying it for Stephane's port, but haven't > gotten around to it. Thanks! I knew about this library, but I was hoping to prod some other porters to the surface with my comment. I guess I'll be (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Modifying a servo for use with HB
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(...) What sources for servo hacking have you read? Depending on the servo (the Futaba S148 is the easiest), there are a few things to do. Using the 148 as my example; Clip off the end-stop and pull the bushing from the spline gear and remove the (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Handyboard and MIDI
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I'm trying to use my handyboard to send MIDI messages to a host. I downloaded and tried the MIDI libraries from Colby Leider, and it looks like it's just what I need, but I can't get them to work with IC 2.8. Is anyone using the Handyboard with (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Hewlett Packard optical encoder
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Hi, Since photo reflector with segmented wheel pattern doesn't help in precise mobile robot navigation, I intend to use Hewlett Packard optical encoder and I have selected HEDS-9140 series.I know someone has tried this item long time ago and I hope (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Modifying a servo for use with HB
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If you just want to use them as motors, then B is the appropriate solution. You are correct in the motor PWM routines are just used to control the amount of energy going to the motors. The servo routines (using the expansion board) are the kind for (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Modifying a servo for use with HB
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When connecting my servos (now gear head motors) to the HandyBoard - do I need to a) replace the pot with the resistor network or b) remove the electronics all together? I'm unclear if the PWM routines on the HB (fd, bk, and motor) are the kind of (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | multitasking support.
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i'm running IC version 2.82. i'm not too sure how do i get the handyboard to do multi tasking on three routines: 1. control the velocity of the robot (i called the function 'dc') 2. steer (i'm steering with a front wheel) 3.identify strips on the (...) (25 years ago, 20-Jan-00, to lugnet.robotics.handyboard)
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| | Shaft encoder
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I'm using a slot sensor (break beam) as part of my shaft encoding. the slot sensor is reading the number of breaks when the 6 spokes (attached to the shaft) spins. i'm using the Sencdr1.icb file to do drive the shaft encoder. i notice that there (...) (25 years ago, 20-Jan-00, to lugnet.robotics.handyboard)
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| | Re: AOL Instant Messenger
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This is a SCAM ~ intended to get your password this isnt a valid AOL website ~ BE WARE of SPAMMERS (25 years ago, 20-Jan-00, to lugnet.robotics.handyboard)
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