 | | RE: Source of 68HC11 in UK?
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Hi peter, you can get the 68hc11 from r.s or farnell here is the farnell catalog number and price. (URL) MC68HC11A1FN Price. £7.50 cat num. 295-619 cheers Russ... -----Original Message----- From: peter@xkeys.demon.co.uk (...) (26 years ago, 14-Dec-98, to lugnet.robotics.handyboard)
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| | Problems getting a L298H based motor controller to work...
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Hi, On Friday I received a L298H based motor controller kit from JCM Electronics. The assembly was fairly painless, however I can't seem to get it to work. I get 5 volts out of the logic battery output, so the regulator is working. I double checked (...) (26 years ago, 14-Dec-98, to lugnet.robotics.handyboard)
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| | a/d range and instrumentation
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Hi! Could someone please tell me what is the Handyboard a/d range (60 mV?) and how about it's accuracy? Is someone interested to use or has used the HandyBoard in instrumentation? I plan to make a temperature indicator / pid / fuzzy controller with (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Build it yourself
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Hi folks! Here is my current shop list, as soon as I have my Handyboard here I'll try to make a complete shop list. 1) First option: buy the unassembled kit from Pattrick Hui's Robot Store in Hong Kong. Order by mail huip@hkstar.com. The standard (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | some kind of dividing circuit?!?!?!?!
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hi, I am thinking of using motors with encoders built in them on my rugwarrior board, but the problem is that the motor returns 500 clicks per revolution. and since the counter can only hold about 32,000 the variable fills up and overflows very (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Position Control Question ?
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Thanks for your reply. To answer your question about position control, let me describe my application. I have an Handyboard, stepper motor, and a linear system (ball-screw), and I would like to control the position of the part mounted on the nut of (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | Miniboard in space.
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Hi, I realize that this is actually not a miniboard list, but since the miniboard is actually the handyboards little brother, I figured maybe this would be of interest. About a year ago I was asked to help a local high school integrate their (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | Please help! HD jammed !!!
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Hi FThompson, Fred and other, I encountered some problem in the downloading. I was successfully able to download the p_code into the HD. However, When the instruction proned me to reset the board, it always appears on the LCD without any lettering (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | IC question
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Dear All, I have a question on the operation of the Handy Board motor outputs which i do not understand. As deduced from the schematic diagram, I believe that the HC374 chip clock input is connected to a Y6 terminal. This Y6 terminal is one of the (...) (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | Position Control Question ?
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Hi Everybody I am new in this mailing list. Has anyone successfully implemented a position control using the handyboard with either a stepper motor or dc servo motor. Baraki (26 years ago, 13-Dec-98, to lugnet.robotics.handyboard)
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| | LCD configs (was:Suppliers and rf link)
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(...) I just wanted to voice a warning of sorts. I ordered the 2 X 16 LCD from them and the pinout is slightly different. Instead of a single line of 14 pins: x x x x x x x x x x x x x x They come with a dual inline 2x7 pin configuration: x x x x x (...) (26 years ago, 12-Dec-98, to lugnet.robotics.handyboard)
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| | Thanks
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I'd like to thank everybody who sent me all this valuable information about suppliers and rf link. I think now I can make my handyboard with less then US$ 60.00 without the batteries and motor drivers (I want to use it in data acquisition). As I (...) (26 years ago, 12-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Suppliers and rf link
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Cesar, Nuts & Volts magazine caries lots of adds for just the sort of thing you need (www.nutsvolts.com). I wanted to mention here the 2 X 16 and 2 X 20 LCD displays which are on sale for $8.00 each at www.flat-panel.com. Hope this helps Pherd (26 years ago, 12-Dec-98, to lugnet.robotics.handyboard)
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| | config download problems
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Hi I am building a handyboard from scratch after finding it on the net. I actually purchased two pcb's from Douglas Electronics. An aside, they were great to deal with answering all my questions promptly and efficiently. I built the first hb and had (...) (26 years ago, 12-Dec-98, to lugnet.robotics.handyboard)
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| | Source of 68HC11 in UK?
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Does anyone know of a supplier for the 68HC11 in the UK? Also any handyboard suppliers in UK. Peter (26 years ago, 12-Dec-98, to lugnet.robotics.handyboard)
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| | Is my serial interface shot?
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I get the message "Board disconnected or not responding" when I try to run ic. (The board was working fine before).So I tried to re load the pcode, but I have run into a slight problem: With the serial interface disconnected, I hold down the stop (...) (26 years ago, 11-Dec-98, to lugnet.robotics.handyboard)
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| | Re: How to get digital outputs from the handyboard???...???
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(...) First, to enable the four SPI pins D2 through D5 as digital outputs, make sure you do a bit_set( 0x1009, 0x3C ). (In the sonar.c program, for example, bit_set( 0x1009, 0x30 ) seems to only enable two of the pins--not all four). I think poke (...) (26 years ago, 11-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Suppliers and rf link
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Yeah, BGMicro is good, they seem to have a neverending supply of used 68HC11A1FN chips for $6.95. If you want new, try: Future/Active voice 1-800-655-0006 fax 1-800-645-2953 (no internet address) 41 Main St. Bolton, MA 01740 USA They list the chips (...) (26 years ago, 11-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Suppliers and rf link
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www.bgmicro.com Nice people, good service (they sent me spec sheets once without me ordering!) HC11's for about $6.95 or so, and they have almost every part you'll need for a HB, miniboard or Rug Warrior board. (MAX233 chips, 32k RAM, crystals, (...) (26 years ago, 11-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Suppliers and rf link
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(...) As someone mentioned earlier (and I can attest to the accuracy) www.bgmicro.com sells the 68HC11 for something like $6 to $8. I bought two and they arrived in only a few days. john calhoun- (26 years ago, 11-Dec-98, to lugnet.robotics.handyboard)
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