 | | Re: Pad/Hole Widths
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Hi Mike check with your board manufacturer for production specification. The via hole size I resently used was 12mil with a via size of 16mil. For Pad/Hole Width use the specifications of the parts you want to put on your board. A hole should be (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | RC Servo motor internal electronics
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Has anyone out there ever seen, heard about, or thought about the details of electronic circuit built into a hobby servo motor to do the positioning and maintaining the position based on the signal pulse sent? I am interested in any information or (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Pad/Hole Widths
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Does anyone know what typical Pad/Hole Widths are for thru-hole parts? What about via/hole widths? Is there a web site for PCB geometry sizes that someone could point me to? Thanks -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd (...) (26 years ago, 17-May-98, to lugnet.robotics.handyboard)
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| | Charging HB-PLEASE HELP ASAP!!!
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Hello. I just got HB assembled and tested. I do not have external NiCDs connected, since I am going to be cutting the power lead and connecting an alternative power source. From what I understand there is an internal battery that still needs to be (...) (26 years ago, 15-May-98, to lugnet.robotics.handyboard)
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| | E Series MCUs
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I am using an 811E2 part in my handyboard with IC. It is supposed to have problems with this chip. I have not disabled the EEPROM but it still seems to work. I have been having a problem finding the A1FN part. I do not want to buy anymore of the (...) (26 years ago, 15-May-98, to lugnet.robotics.handyboard)
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| | Powering and charging handy board
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Hello. Several questions. What is the best way to charge the board? Through charger board or to teh board directly. Also, when i am chanrging it, am I charging the internal battery or the external NiCD batteries? Also, does the board have its own (...) (26 years ago, 14-May-98, to lugnet.robotics.handyboard)
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| | handyboard for sale
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I have a completed and operational handyboard which I am offering for sale. Contact me at jnbs@wizard.com Thanks Jim (26 years ago, 14-May-98, to lugnet.robotics.handyboard)
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| | Shorted Handyboard
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Finishing mounting our handyboard to the chasis of our robot, we shorted the board. A screwdriver made contact near the IR reciever on the bottom right corner of the board. Additionally, the 2.5A fuse blew. After this occured, we have not been able (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Does the HB NEED 9.6 volts?
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I am planning on using stepper motors with a handy board, which hopefully I will have in a week :) The specs on the HB say it uses 9.6 volts. Is this a required voltage? or can it be another rating as long as it is within the regulators limits. (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard 10-16 Servo support
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(...) I had exactly the same problem. There is a CMOS chip by Motorola called the MC14028B that is a BCD-to-decimal or Binary-to-octal decoder. All that really matters though is that it will take a 4-bit input and decode up to *10* outputs that are (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Interrupt counter rate
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Hi everyone. I use a 4 bits binary counter to measure the no. of pulses emitted from a shaft encoder(TTL output) in order to calulate the speed of a DC motor. But i want to know what is the best frequency that the processor should take the bit (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | L293E sense output ??
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Hi, I'm using a L293E to drive my motors. Each driver has a "sense" output and I don't understand the use of it. How can I use those outputs with the Handy-Board ? Thanks for any help, ......... Fred, Cannes, France EMail: fred.maillet@wanadoo.fr (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Re: What is the best way to eliminate mechanical error trough software
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(...) therefore the robot tends to drift toward the side of the slower motor. (...) one, so I'm looking for some input to help me write an efficient program to keep the robot moving straight. I handled this type of problem by creating a new process (...) (26 years ago, 12-May-98, to lugnet.robotics.handyboard)
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| | What is the best way to eliminate mechanical error trough software
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Hi I built a small circular robot base with differential steering using 3" diameter rubber wheels and optical encoders on both wheels. The motors powering the robot are high efficiency German built gear motors using 300 mA when stalled, and rotating (...) (26 years ago, 11-May-98, to lugnet.robotics.handyboard)
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| | WinCE Downloader - Exist?
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Does anyone know of a downloader to the handyboard for a Win95 CE platform? -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Commands
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I have those docs. I knew that it was driven by the hd44780 but the summary page on their web site indicated that the 44780 could drive 2 lines of 8 characters and I assumed there must be a micro on the board to handle the 2x16 and that there might (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: Testing with PCBUG11 - Getting Close
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Thanks, I'll try this. I did finally realize that the HandyBoard is not supposed to boot to expanded mode. Thanks again. (...) -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Handyboard PCB's available in UK
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I have a small stock of Handyboard PCBs which I can supply as a set of HB and IF/Charger board for £19-50 sterling including first class post to UK locations or Airmail to Europe. I will also include the ZTX 614 darlington with every set of boards (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: ** adobe acrobat reader **
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(...) The first step is to install Acrobat Reader per the instructions that come with it. Sounds like you've done that. The next step (provided you have a PC running Windows) is to go to the appropriate web page and right-click on the link for the (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: LEGO parts
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(...) The air compressor (the one meant to be driven by a motor) is offered in the Lego Shop At Home Spring '98 catalog as part #5117, $4.00, and it comes with a few pulley wheels. Often, even if they don't mention it in their current catalog, if (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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