 | | Re: Odometers
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(...) Tom, The problem most likely is not with the code but with the motor driver software. At the present time, the handy board motor driver routine only allows you to select from 7 power levels to the motor. With only 7 levels to choose from, you (...) (28 years ago, 26-Mar-97, to lugnet.robotics.handyboard)
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| | Mini Rebound RC
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I have seen alot of talk in the mail archives on converting RC cars (motors) and the jist i get is that they just draw two much current and are to fast. There is a smaller version of the Rebound RC car called the Mini rebound has anyone had any luck (...) (28 years ago, 26-Mar-97, to lugnet.robotics.handyboard)
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| | HB IR port
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Hello everyone, I'm interested in trying, possibly using the 40 Khz IR emitter port on the HB. What is required to activate it? If it is code driven, does it bog down the controller much? Also if it is code driven, does anyone have some sample? Is (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Neglection of U8 on Parts List
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Hi, I noticed that U8 was neglected from the parts list. If anyone was wondering you can get it from Mouser. The part number is 570-CD74HC373E. Attn: Fred you might want to update the parts list. Thank You, Peter Eacmen (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Please repost Sample Sonar Schematic
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I deleted the message about the sample sonar schematic posted today in my mailbox after reading it since I thought it was also posted on the website. I couldn't find it, so can someone please repost it on this mailing list or send me the original (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Re: Odometers
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Tom, What kind of encoders are inside these i.e., Hall Effect Sensors (magnetic), or IR LED emitters/detectors (optoelectronic)? Jose-Alfredo Esguerra WSU Mechanical Engineering Student Autonomous Mobile Robot Project (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Digital Sensors & IR control (repost)
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Hi! I'm new on this list. I'm in the process of making what I hope will be an automonous mobile robot, controlled by the Handy Board. I want to add digital sensors to my program, and I've tried to do so, but the program unloads itself when I try to (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Re: Please repost Sample Sonar Schematic
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It is now linked from the HB Software Resources page. -Fred (URL) I deleted the message about the sample sonar schematic posted today in my (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Digital sensors & IR control
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Hi! I'm new on this list. I'm in the process of making what I hope will be an automonous mobile robot, controlled by the Handy Board. I want to add digital sensors to my program, and I've tried to do so, but the program unloads itself when I try to (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | digital and analog ports...
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Hello all, I've run into a small problem with some of my digital and analog ports. When I check their current values (analog(??) and digital(??)), some of the values change, and some don't. I've checked the IR sensors, and switched the good ones (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Analog ports....
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Hello to all, I've run into a small problem with my analog ports. I've got 3 IR transmitter/recievers hooked up to 3 ports, and the "levels" that they are reading is stuck. What I mean is that if I print out to the LCD screen the current values of (...) (28 years ago, 25-Mar-97, to lugnet.robotics.handyboard)
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| | Odometers
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Has anyone used odometers to make their bot drive in a straight line. I am trying to do this and it seems like the delay in reading the encoder values from 1 line to the next causes problems. I have tried taking two results after sleeping for 0.3 (...) (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | COX SERVOS
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I have a 10-14yrold COX micro servo that will rotate freely in both directions when applied straight DC. Does anyone know if these older servos operate differently than PWM. This would be a great solution vs hacking my new servos. (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | Re: Adam's schematic / sending large files to the list
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Everyone.... I would like to take this moment to appologize to those who were inconvenienced by my email. It was only after I had sent it that I realized the implications. oops! I will, however, submit the code that I use (it's simple) and some (...) (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | Re: Vector2X
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(...) I will try to get a package together tonight that will have to schematics, and the icb file as well as some C demonstration code. I thought I damaged my compass a week ago, but it turns out I broke a wire. I have a schematic, and all the (...) (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | Adam's schematic / sending large files to the list
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Hi all, a few reactions to Adam's multi-sonar schematic: * looks like a clever idea and it's an extremely clearly drawn schematic. I put a copy up at (URL) Adam, if you would ZIP up and e-mail me the code you use to drive this, along with any other (...) (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | System time &square waves
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I am still having trouble with the my program and thought that I might ask whether there is any code or does anyone know of a way to identify the frequency of digital square waves with the handy board. Joe Martin joema@mpx.com.au (28 years ago, 24-Mar-97, to lugnet.robotics.handyboard)
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| | Thanks.
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Hello, Thank you to everyone for all the help with the Handy-Board. In particular, thank you Fred Martin and Randy Sargent. Keep up the good work. -Luke (28 years ago, 23-Mar-97, to lugnet.robotics.handyboard)
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| | Re:Re:System time
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Pandit, It turns out that we where both wrong about your program.It does not work because the time over which d adds 1 to itself is not defined the program does not count at a rate of one unit per millisecond.I have in fact found that it will at (...) (28 years ago, 23-Mar-97, to lugnet.robotics.handyboard)
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| | Re: your mail
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The LCD pins are just the databus, and some strobes. No power here, just information. And not much possibility for PWM either, since databus timing is constrained by the CPU bus timing. Best to hook something stuctured to the databus, ie the (...) (28 years ago, 23-Mar-97, to lugnet.robotics.handyboard)
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