 | | Re: Source of 754410 driver
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Newark has the TI SN754410NE chips. (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | A/D converter
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Thank you for the "Hint" Kevin Smith , Assistant Professor at Brigham Young University. I can read the Analog to Digital converter now. I increased the delay on the power up initialization. Hector Noriega Graduate Student Electrical Engineering (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Re: inquiry
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probably -- i don't know if there are driver conflicts. you probably have to use the version of the pcode that doesn't hang if it doesn't find an LCD. fred In your message you said: (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | inquiry
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Dr. Martin, I am planning to build another robot with TCOMP on it, specifically the TCOMP 3.5, can I still use IC for this board? You can find TCOMP address here: (URL) in advance. joema (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Source of 754410 driver
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Hello, all: I saw in the FAQ that TI has an "upgrade" to the L293 motor driver chip. What is the best source for this part? Thanks! Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <===...=== (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sensor connections
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i think you may be using the wrong drivers. make sure to set your version of IC to load "lib_hb.lis" when it boots up. fred In your message you said: (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Getting started with the project
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Respected Sir, I have installed the newer version of IC into my PC. My Handyboard is ready with all parts assembled. Earlier I have done a project called "Mobile Robot Navigation of a Maze" with this handyboard. In this the robot navigates the maze (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Sensor connections [DAT]
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I can not get the sensors to respond correctly, for instance if I do analog(0) the value of the sensor marked 7 on the hb is returned. After going through all the sensors here is the layout I came up with: I never got a reading on port 0,1,9 or 10 (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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Sounds like a lot of it is still up and running if you can download. I'd suggest going through the assembly instructions and performing the tests at the end of each section. You should, thereby, be able to isolate smaller areas that may be fried and (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Read A/D converter
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I didn't look that closely at your program but I have included a routine to read the analog ports that I know works. After assembling and loading the program, you make two c function calls: powerup_ad(); and read_ad(i); where i is the analog port (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: No stepper motor info in FAQ?
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(...) HB? (...) Allegro Systems UCN5804B is $3 and change from Newark Electronics. That's not so many $s. It can drive steppers up to 1.25A. The interfacing is easy, datasheet available on-line. Hope this helps, Art (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: data capture
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Justin, I didn't see anyone reply to your RS232 Question. ALthough I am a newbie to the Handyboard, I have been doing RS232 programming off and on for years. My conclusion is that there have been MANY null modem configurations...but, they seem to be (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Expansion Board availability?
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Ok, I found the link to the Expansion board info website...it's all about a beta version. But, there appears to be enough information there for me to build one myself. (is that what everyone's done?) I have never built something from scratch like (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | No stepper motor info in FAQ?
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Hi all, I just finished searching the FAQ for stepper motor driving tips and found none. :( Anyone know what the most efficient way to connect a stepper motor to the HB? I know that they have these $8ish driver chips...but I've never used one. If (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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Well maybe you should try replacing the HC11 for a start.. These things tend to spoil easily and for no apparent reason.... :( (or is it just bad luck?) That's funny, you shorted out something and it still can download? Maybe you should also change (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Dead HB
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Hi All, While I was building my sumo robot I managed to short a wire in my HB. I put a wire that was connected to a multimeter and also connected to another part of the robot, into a digital sensor input, sparks came out and it smelt like burnt (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Read A/D converter
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"HI" , I am trying to read the A/D converter but the program gets "Hung-Up" on the line "ANALOOP", the CCF bit never sets. Please give me a hint. Here is the Assembly code. /* MAGLEV.ASM, Magnetic Levitation by Hector Noriega, 28JUNE1998.*/ /*Handy (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Basic Sensor Question
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if a sensor connector row looks like this -- [ ][ ][ ][ ][ ][ ][ ] [ ][ ][ ][ ][ ][ ][ ] [ ][ ][ ][ ][ ][ ][ ] 6 5 4 3 2 1 0 then to connect to sensor 0, you plug the switch into the places marked "[X]": [ ][ ][ ][ ][ ][ ][X] [ ][ ][ ][ ][ ][ ][ ] [ (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Basic Sensor Question
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You were right, also it seems my board is wired incorrectly analog(0) controls the connector marked 7 on the hb. Thanks for your help! Julian -----Original Message----- From: Scott R. Harris <srharris@phoenix.Pr...ceton.EDU> To: Julian Porter (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Basic Sensor Question
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It sounds like you've got the switch between +5V and GND. What pins exactly are you connecting to? The sensor connections Are like this: _ _ _ G + I N 5 N D V P You dont need a resistor to use a microswitch. The HB inputs have pull-up resistors, so (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | RE: RTOS for HB?
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There is the Micro Kernel from Jean J. Labrosse. It's a free kernel readily available, also for the 68hc11. I have his book but haven't implemented the full kernel yet, only parts of it. Its well written and cheap. Look at: (URL) jaron paludanus (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Basic Sensor Question
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I just got my HB and am trying to test the sensor input, the docs say to hook up the microswitch between signal and ground, when I do this and close the switch my hb resets (because I just shorted it out...). I tried putting a resistor (330 ohm) in (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Questions about sensors
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Eric Noyau wrote: <snip> (...) The results you get from a reflective IR sensor will vary quite a lot depending on surface color, roughness, angle of incidence, electrical noise, etc. My IR sensors were not good for much of anything besides encoders, (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | RTOS for HB?
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To me is seems, that multitasking futures of IC is very insufficient. Is exist any small, inexpensive RTOS (real time operation system), that is tested for HB? I'm hear that RTXC, RTEK or MCX11 may be that RTOS. Is anybody tested some RTOS with HB? (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Questions about sensors
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(...) One thing that was discussed before (I think on this mailing list?) that I thought was pretty cool was a small robot with a microphone (FM wireless mike perhaps?) and a photocell. It would stay in the shadows while trying to get close to (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | Questions about sensors
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Hi all, I'm having fun with my HB! For a software guy like me a 8 bit processor at 2 Mhz with 32K of RAM is a little small but it's so easy to add sensors to it it's just plain fun! But I'm an hardware newbie and I need more info on the sensors I (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | data capture
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hello, i am trying to send a data array to my PC from the handyboard thru the serial cable. a couple months ago, i was advised to use a terminal emulator to capture the data. this has not worked, however. i was told about using a null modem cable (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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It appears to be time for the periodic unsubscribe reminder. In order to unsubscribe from the HB Mailing List, you must send a request to Fred Martin. He is the only person who can take you off the list. Ha ha ha ha!!! Try to guess his email (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | IC installation problem
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Dear Sir, Iam getting started with my project. At our lab we are having freeware version of IC (version 2.8). We tried to install the commercial version 3.2, but we are facing some problems. We tried to install from the site you told i.e (URL) you (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: platform choices...
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If money is not an issue, Mondo Tronix' Robot Store has variuos robot bases. One is large enough to hold a laptop and a great many sensors. --phil (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | RE: platform choices...
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From the pictures, it seems that this is a vehicle called 'Hercules' (or something close). I have seen it at the FAO Schwarz store recently. I have no details on how the truck operates, though the details on the box indicated that it can raise and (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: waterproof seals (a bit OT)
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(...) A little off the wall, but would it simplify the sealing if you could pressurize the inside to something close to the pressure outside (equalize pressures). A miniature CO2 cartridge with a release valve may help. Mike (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | platform choices...
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Hi: When I was in school, we built an autonomous mobile robot based on a six wheeled, 'electric ride-on toy' from Toys-R-Us. It had a sturdy metal frame, two nicely geared motors, a decent battery. It worked fairly well and could carry a large (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Address locations port d and y0
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it's in the faq, at (URL) you do is write to 0x4000, 0x5000, 0x6000 depending on whether your latch is attached to Y0, Y2, or Y4 (respectively). e.g., "poke(0x4000, 0xff);" will set all the bits of a latch attached to Y0 to 1. Fred In your message (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | NEC V40
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Sorry to intrude, I would like to check with people of this list if any one have used the NEC V40 ucontroller before. I'm doing a project on this and have problem programming the timer and intrl3. Kind reply to me personally at (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | Address locations port d and y0
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Ok I've had another read of the FAQ, as well as a close look at the schematics for the handyboard and the expansion board. Correct me if I'm wrong, but I think I can use d0-d7 along with Y0 or similar and hook these into a HC374 to get some digital (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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