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Problem: I have built a small robot with differential drive using 3+ACI- diam whee ls turning at 66 RPM +AEA- full power PWM no load. Each wheel has a 16 pulses per rev. reflective type shaft encoder. the robot is controlled by the Handy Board (...) (26 years ago, 12-Aug-98, to lugnet.robotics.handyboard)
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| | intel hex file
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Hello all, Does anybody has information of the intel hex file. I do understand the intel hex file (xxx.hex) that is generated by the asm programs, but i use a new assembler, (with the gcc compiler) and it generates different intel hex file (...) (26 years ago, 12-Aug-98, to lugnet.robotics.handyboard)
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| | PCB
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fthompson wrote: "Some time ago Karl Lundt included in his Amateur Robotics column a short description of a new Printed Circuit Fabrication material where you ran the copper clad through a laser printer (to print directly onto the copper rather than (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
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| | Re: mmu
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It's not impossible. The easiest way is to use the same technique as Java (or IC) and write an embedded interpreter that executes code for a "psuedo" machine. The resulting machine can have arbitrarily strict access restrictions between tasks. You (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
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| | PCB Fabrication material.
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Some time ago Karl Lundt included in his Amateur Robotics column a short description of a new Printed Circuit Fabrication material where you ran the copper clad through a laser printer (to print directly onto the copper rather than using iron on (...) (26 years ago, 11-Aug-98, to lugnet.robotics.handyboard)
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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)
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| | 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)
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| | 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)
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| | 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)
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| | 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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