Comments for The Handy Board http://handyboard.com/hb the original robot controller platform since 1995 Thu, 17 Jun 2010 10:27:26 +0000 http://wordpress.org/?v=2.9.2 hourly 1 Comment on USB Interface by fredm http://handyboard.com/hb/hardware/usb-interface/comment-page-1/#comment-337 fredm Thu, 17 Jun 2010 10:27:26 +0000 http://handyboard.com/hb/?page_id=264#comment-337 If I remember correctly, the HC11's bootloader operates at 1200 baud. But this is all handled by Interactive C and its "download firmware" function. You shouldn't have to separately set serial parameters, unless you're writing your own bootloader. If you are writing your own bootloader, I have a simple one written in Java. See http://www.cs.uml.edu/~fredm/courses/91.305-fall02/ and look at Assignments 3 and 4. If I remember correctly, the HC11’s bootloader operates at 1200 baud. But this is all handled by Interactive C and its “download firmware” function. You shouldn’t have to separately set serial parameters, unless you’re writing your own bootloader.

If you are writing your own bootloader, I have a simple one written in Java. See http://www.cs.uml.edu/~fredm/courses/91.305-fall02/ and look at Assignments 3 and 4.

]]> Comment on USB Interface by hvontres http://handyboard.com/hb/hardware/usb-interface/comment-page-1/#comment-336 hvontres Thu, 17 Jun 2010 08:11:20 +0000 http://handyboard.com/hb/?page_id=264#comment-336 Hello, I was wondering what settings you used to the the ftdi232RL to work in bootstrap mode. I have a ftdi usb adapter but I can't seem to the the timing worked out. Thank you very much. Hello,
I was wondering what settings you used to the the ftdi232RL to work in bootstrap mode. I have a ftdi usb adapter but I can’t seem to the the timing worked out. Thank you very much.

]]> Comment on Book by PowerPoint slides for Robotic Explorations available – The Handy Board http://handyboard.com/hb/book/comment-page-1/#comment-330 PowerPoint slides for Robotic Explorations available – The Handy Board Sun, 18 Apr 2010 11:17:49 +0000 http://handyboard.dreamhosters.com/hb/?page_id=4#comment-330 [...] Handy Board the original robot controller platform since 1995 HomeAboutBookCommunityDocsSoftwareInteractive CLibrariesServo MotorsSourcesHardwareAssemblySchematicPart ListPCB [...] [...] Handy Board the original robot controller platform since 1995 HomeAboutBookCommunityDocsSoftwareInteractive CLibrariesServo MotorsSourcesHardwareAssemblySchematicPart ListPCB [...]

]]> Comment on USB Interface by fredm http://handyboard.com/hb/hardware/usb-interface/comment-page-1/#comment-329 fredm Tue, 30 Mar 2010 02:04:24 +0000 http://handyboard.com/hb/?page_id=264#comment-329 It sounds like your USB-serial adapter doesn't have its driver installed right. Check the System Properties for COM ports; it should show up there. Make sure you have the right driver given the manufacturer of the adapter. It sounds like your USB-serial adapter doesn’t have its driver installed right. Check the System Properties for COM ports; it should show up there. Make sure you have the right driver given the manufacturer of the adapter.

]]> Comment on What motor driver chips can I use? by fredm http://handyboard.com/hb/faq/hardware-faqs/motor-driver-chips/comment-page-1/#comment-326 fredm Fri, 19 Mar 2010 10:21:12 +0000 http://handyboard.dreamhosters.com/hb/faq/hardware-faqs/what-motor-driver-chips-can-i-use/#comment-326 check out the motor drivers at pololu.com: http://www.pololu.com/catalog/category/11 These can wire into the L + R, on/off, and PWM outputs from the Handy Board (i.e., the inputs to the L293). So you can yank a 293 and run its signals to one of these board. check out the motor drivers at pololu.com: http://www.pololu.com/catalog/category/11 These can wire into the L + R, on/off, and PWM outputs from the Handy Board (i.e., the inputs to the L293). So you can yank a 293 and run its signals to one of these board.

]]> Comment on What motor driver chips can I use? by johnl123d http://handyboard.com/hb/faq/hardware-faqs/motor-driver-chips/comment-page-1/#comment-325 johnl123d Fri, 19 Mar 2010 02:03:14 +0000 http://handyboard.dreamhosters.com/hb/faq/hardware-faqs/what-motor-driver-chips-can-i-use/#comment-325 Which motor driver do I use if I want to power Motors more than 5A? L293D definitely won't work. Which motor driver do I use if I want to power Motors more than 5A?

L293D definitely won’t work.

]]> Comment on USB Interface by keclark http://handyboard.com/hb/hardware/usb-interface/comment-page-1/#comment-324 keclark Sat, 06 Feb 2010 03:50:18 +0000 http://handyboard.com/hb/?page_id=264#comment-324 I have the serial interface with a serial to usb connector connecting it to my windows 7 computer. When I open up IC, it just shows the default com port 1 and nothing else. This is not the right port and I cannot connect to my handy board. I installed the VCP driver but still nothing works. Any thoughts? I have the serial interface with a serial to usb connector connecting it to my windows 7 computer. When I open up IC, it just shows the default com port 1 and nothing else. This is not the right port and I cannot connect to my handy board. I installed the VCP driver but still nothing works. Any thoughts?

]]> Comment on Hardware by fredm http://handyboard.com/hb/hardware/comment-page-1/#comment-312 fredm Sat, 14 Nov 2009 12:58:04 +0000 http://handyboard.dreamhosters.com/hb/?page_id=27#comment-312 Yes, you would need to cut traces on both the main HB and the Expansion board. Also, you'd want to separate the servo power source, because servos should not be run on more than 6v. There is a diode chain on the Exp Bd to drop the servo voltage from 9 to 6v, but if you're putting in 24v, you'd burn out servos. You could remove a diode and use the exposed pad as a place to run a 5v or 6v servo supply. Yes, you would need to cut traces on both the main HB and the Expansion board. Also, you’d want to separate the servo power source, because servos should not be run on more than 6v. There is a diode chain on the Exp Bd to drop the servo voltage from 9 to 6v, but if you’re putting in 24v, you’d burn out servos. You could remove a diode and use the exposed pad as a place to run a 5v or 6v servo supply.

]]> Comment on Hardware by jjohnson http://handyboard.com/hb/hardware/comment-page-1/#comment-311 jjohnson Fri, 13 Nov 2009 21:09:41 +0000 http://handyboard.dreamhosters.com/hb/?page_id=27#comment-311 I am trying to use an external power supply to run my DC motors, I found the instructions for using a second power supply for the HandyBoard (http://www.handyboard.com/oldhb/mods/hbmcut.html). I also have an expansion board on my Handy Board, The expansion Board uses these same headers. I also found some documentation on how to modify the expansion board to accept external power for the servo motors (back of expansion board identifies the trace to be cut). If I were to add an external power supply source of 24 volts would I need to cut both of these traces? Would I be correct in assuming that the servo and dc motors would both run on the same external source? I am trying to use an external power supply to run my DC motors, I found the instructions for using a second power supply for the HandyBoard (http://www.handyboard.com/oldhb/mods/hbmcut.html). I also have an expansion board on my Handy Board, The expansion Board uses these same headers. I also found some documentation on how to modify the expansion board to accept external power for the servo motors (back of expansion board identifies the trace to be cut). If I were to add an external power supply source of 24 volts would I need to cut both of these traces? Would I be correct in assuming that the servo and dc motors would both run on the same external source?

]]> Comment on Book by Suf2009 http://handyboard.com/hb/book/comment-page-1/#comment-310 Suf2009 Sun, 08 Nov 2009 08:53:17 +0000 http://handyboard.dreamhosters.com/hb/?page_id=4#comment-310 I have bought this book, it's a good book, hope to have another edition. I have bought this book, it’s a good book, hope to have another edition.

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