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 | | Re: General use PCB
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| Ed: In a message dated 98-08-05 11:51:18 EDT, you write: << We have been using the Radio Shack, Archer board #276-162A. Specifications: Dimensions 3 inches x 4 inches, with copper lands on one side. 30 holes by 25 holes with mounting holes at 2.5 (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
| | | | | Handy Board Available.
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| To Anyone Interested, I have a nearly brand new complete Handy Board for Sale. I used it one week and unfortunately it does not have the capability to do what I want. It is complete with battery installed, serial/charger board, software for IBM, (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
| | | | | mmu
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| Hello all, i'm trying to write a small OS, but am confused about something. I don't want to give access to all memory locations for the user, only for the supervisor. Since the 68hc11 doens't have these modes i have to think of something else. A (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
| | | | | ports question (cont)
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| ... just to follow up on my question: i'm trying to read the photosensors through the analog ports. however, the value returned by analog(i) is always 255, so perhaps i have the sensors hooked wrong. when i read "analog(0);" it always retunes 255, (...) (26 years ago, 10-Aug-98, to lugnet.robotics.handyboard)
| | | | | ports question
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| hi, looking at the sensor diagram at: (URL) see something like this: signal =====||= =||= +5V =====||= ground ====||= on the actual hb, do the three rows of holes along the "bottom" or near edge of the board correspond to the sensor diagram in terms (...) (26 years ago, 10-Aug-98, to lugnet.robotics.handyboard)
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