 | | LM324
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The latest expansion board schematic shows an LM324 for the high impedance input buffers. Although the LM324 is cheap and available, its input and output voltage ranges are limited to 0 to 3.5V (yes, probably a little more with any real part). If (...) (28 years ago, 13-Feb-97, to lugnet.robotics.handyboard)
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| | UNSUBSCRIBE from handyboard@media.mit.edu
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Hello, who can tell me how I UNSUBSCRIBE me from this Mailing List... Thanks Bye, Matthias Pletz (28 years ago, 13-Feb-97, to lugnet.robotics.handyboard)
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| | Re[2]: as11_ic
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Hello, Am I the only one who is still lost with this stuff? Help! I see the Mac ports of the as11 assembler on the web site; why can't the DOS version be put there? I have been unable to find the assembler on Motorola's web site despite several (...) (28 years ago, 13-Feb-97, to lugnet.robotics.handyboard)
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| | is there a program
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I am building a handyboard from the board up and i was wondering if a program exists that when the handyboard is programmed i can get it to run through a maze on my monitor, i can't afford a body right now thanks ted houle (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | Re: as11_ic
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There are two fundamentally different ways to go about writing assembly language programs for the Handy Board: 1. Write them as callable functions for the Interactive C environment, using the as11_ic program. 2. Scrap Interactive C entirely, and (...) (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | as11_ic
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Hi, I was wondering if there is a version of the as11_ic assembler available for the IBM PC. If not, is there any other way to use an .asm file on the handy board? Thanks. -LUKE (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | Building new PCODE
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As I cant seem to get a 16x2 LCD, I have installed a 16x1 display. The problem now is building a suitable version of the PCODE to support it without workarounds. I don't have a unix box so I got Kent's (?) port to the PC. That, however, is an older (...) (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Signal Diode
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JTW, Use 1n4002, 1n4004, etc - they are higher rated parts and usually the same price (which is why 1n4001 has been discontinued - everybody upgraded for free!). Richard ___...___ Reply Separator ___...___ Subject: Signal Diode Author: (...) (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | as11_ic
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Hi, I was wondering if there is a version of the as11_ic assembler available for the IBM PC. If not, is there any other way to use an .asm file on the handy board? Thanks. -LUKE (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | sonar&motor driver
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Hello everyone, If the polaroid sonar sensors are connected as mentioned by kent (ftp site), is it still possible to use motor ports 2 & 3? (28 years ago, 12-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Signal Diode
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The 1N4001 is the 50v version of a family of diodes (1N4001-1N4007) that cover 50 volts to 1000 volts. In general you could use any of the other versions. I would recommend looking for 1N4002(100v) or 1N4003(200v). As it happens Digikey says they (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Signal Diode
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the 1n4001 is a pwr diode, not a signal, try looking in pwr section. -f In your message you said: (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | Sonar Query
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Anyone, I've been reading the documentation pertaining to the hookup of the Polaroid 6500 sonar and am a little bit unsure about some of the wording. Can you please verify with me a few things.... When you discuss the connections to the HB, it is (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Kent, I've been reading the documentation pertaining to the hookup of the Polaroid 6500 sonar and am a little bit unsure about some of the wording. Can you please verify with me a few things.... When you discuss the connections to the HB, it is (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | Re: HB does not enter on bootstrap mode
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there is no special "mode unlock," so you may have a bad 6811. -fred In your message you said: (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | HB does not enter on bootstrap mode
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Hola, I followed step 4.4 in the HB assembly manual. I hold down STOP-SW while powering on the board, then the battery LED light for 1/3 s, but the power light does not go OFF. I have checked that the MODA signal and the RESET are present at the (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | Signal Diode
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Hey all, Mouser (and Digi-Key, etc.) say that the signal diode 1N4001 has been discountinued, I can't seem to locate any one who has them. This small partis holding up the project. Anybody have extras? Ideas? JTW (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | IS1U60 IR Demods
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Hello! Can anyone tell me what a fair price would be for this part (IS1U60) would be? I am not trying to make money on anyone I just want to try to share some of these hard to get parts. By the way, sorry I haven't got back to those who responded I (...) (28 years ago, 11-Feb-97, to lugnet.robotics.handyboard)
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| | Re: empty addresses
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(...) Why do you want to store it at a particular address? Can't you store it into a variable name and let IC take care of where it goes? I think the 16K memory when allocated builds from $0000 and $7FFF towards the middle, so I'd guess any unused (...) (28 years ago, 10-Feb-97, to lugnet.robotics.handyboard)
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| | Re: expansion board schematic posted
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I vote for the 100mA 5V switch. Digital Outs seem to be quite the disired feature here amoung many. This 100mA capability also provides more options for people to use these signals. It's better than just the CMOS signal, since it can double as that (...) (28 years ago, 10-Feb-97, to lugnet.robotics.handyboard)
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