 | | Re: Mapping
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(...) Watch the critical angle for the sonar too. If the sonar doesn't hit almost straight on, some of the energy will be reflected off at an angle, and may provide false longer distances. Smooth surfaces will have a lower critical angle then coarse (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Mapping
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I've just started experimenting with mapping and these are my thoughts on it. Drop the robot anywhere in its environment. The robot has a sonar hooked to a servo so the sensor can be scanned horizontally. As the sensor sweeps from left to right, (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Re: SRAM and orLCD problem
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eric, i don't have a definitive answer, but here are two things: 1. You *NEED* the reset chip, whether it's a DS1233 or the MC34064HC, I don't care, but you must have a device that asserts reset (pulls the line low) when the system voltage falls (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Mapping
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Hi, Could anyone tell me how a robot can do mapping in a room. Thank you (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Beginner's Help
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Has anyone had this problem: I am running win 98 on P200 MMX, and com1 is used by a serial mouse. I just bought the board, serial expansion board, and cables from Gleason Research. Comm2 is usually used by my internal modem, but I removed it and (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | SRAM and orLCD problem
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Hi, I'm tring to assembly a Handy board and I get to section 6. "The beeper and LCD circuit". In section 4 I've got the pcode_hb downloaded in the 68HC11A1 and the error when DL.EXE comes in the second phase. (I use the DOS version from Randy (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Handyboard communication
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Just a simple question- Does the HB operate under Half- or Full Duplex Communication? If it depends on the program, what is the nature of IC (half/ full duplex) Thanks, Dave (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Fw: Please help! HD jammed !!!
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(...) to (...) Besides, (...) on (...) with (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | Small Contribution...
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Howdy Folks, I just finish writing the first version of ICD; a small Expect server, that listens for TCP/IP requests on port 2010, and forwards them to IC (Interactive C). Use it to make web, email, and even 2 way paging interfaces to the Handy (...) (26 years ago, 15-Dec-98, to lugnet.robotics.handyboard)
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| | recompile/assemble pcode.asm for HB
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Hi HB-Users! I tried to compile/assemble the pcode for the hb to get a running version for another display than 16x2. I downloaded the environment for pc's (containing gcc and as11 and pcode - but not for hb). Than a draw the pcode.asm for hb. When (...) (26 years ago, 14-Dec-98, to lugnet.robotics.handyboard)
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| | 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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