 | | Re: Sonar
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Sure did. I used a ceramic disk capacitor... Hope that was okay to use. I just can't find what the problem is with the ranging board. For all I know, it has never worked. This is my first attempt at using it. There really isn't a whole lot to the (...) (27 years ago, 17-Feb-98, to lugnet.robotics.handyboard)
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| | RE: Expanding the memory of the handyboard
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Dear Fred, The Mechatronics class competition was to build autonomous miniature forklifts that would navigate a complex course. In the course, the forklifts had to identify, pick up, and deliver three. The path that the forklifts had to negotiate (...) (27 years ago, 17-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Lego 9V motors work well?
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I'm curious how you went about securing the motors to your robots. I picked up a couple yesterday, and they do seem to be very good quality motors, but just sticking them on "the LEGO way" doesn't work too well. They keep ripping themselves loose (...) (27 years ago, 17-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Expanding the memory of the handyboard
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Dear Kevin, Please forgive this non-answering of your question, but I am curious as to what kinds of hardware projects/software objectives were your students working on when they ran out of 'hc11 memory, and how did they deal with this circumstance? (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | bouncing ball
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Hey! Im a realitivly clueless High school guy. Our Adventures in Supercomputing group is making a mobile robot using a handyboard and 3 or 4 infared sensors. Is tyhe bouncey ball method a good one for having a rover permeate a halled area? the (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | Expanding the memory of the handyboard
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A number of students that used the handyboard in our Mechatronics competition needed substantially more memory than the 16,320 bytes currently available. What options are there to add memory to the handyboard? Thanks to everyone who contributes to (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Interrupt for serial data
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I have been using very successfully for two months now, the code in the attached zip file. It has Interrupt Driven Transmit & Receive functions, both are buffered. I found the code easy to adapt for my specific task. Messages can be "Canned", Fixed, (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Interrupt for serial data
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I have been using very successfully for two months now, the code in the attached zip file. It has Interrupt Driven Transmit & Receive functions, both are buffered. I found the code easy to adapt for my specific task. Messages can be "Canned", Fixed, (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | Digital input cct
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Hi there, I'm in the middle of building a handyboard and I'm having a lot of problems. I'm on part 7.2 (Digital Input cct) and the testdigitals(); function in hbtest.c doesn't respond to the start button. All the chips and RP1 are installed properly (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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| | Re: pa7 9600 serial output
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(...) You have to re-write the bit_delay loop to take up four times as much time. Just multiply the delay count value by four, e.g., "LDAB #148". Fred (following is the 9600 code.) * take up 0.1042 millisecs * 208 cycles bit_delay LDAB #37 bit_loop (...) (27 years ago, 16-Feb-98, to lugnet.robotics.handyboard)
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