 | | My first servo try! Cool! (C Question)
|
|
Hi all, I'm still amazed with this Handyboard! I had some free time to play this weekend and hooked up a Servo motor for the first time. It was a small futaba that I got from B&G or Electronics Goldmine (I can't remember which). Anyway, I have a few (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | IR Transmission and Reception
|
|
Hi All: I am new to the handyboard list as I just got my handyboard. I am trying to implement obstacle detection using the IR sensors. my question is that, if I want to have more than one ir emitter LED, ( to find out the direction of the obstacle) (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Other Parts...
|
|
I was wondering if it's ok to use another voltage monitor such as Zetex's ZM33064C (5vcc, 4.6v thresh, sinks 60mA) in place of the Dallas DS1233? Also, is it possible to modify the LCD routines to work with displays other than 2x16. Specifically I (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Stepper motor!!
|
|
Hallo all. Why don't you us stepper motor driver IC. for example SAA1027 Philips (uni- polar) or ucn-5804B Allegro Microsystems (uni-polar) or L297 SGS-Thomsom (uni and bi-polar) This will take care of some problems and your handyboard alive!! for (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Generic Battery Question:
|
|
Howdy folks- I've got a quick question for anyone out there have any experience with power distribution systems using multiple batteries... If I have say six [more or less identical] batteries... am I better off to run them all at once (in whatever (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Stepper Motor.
|
|
Keith, At first blush I would suggest the following connections: Motor Out 0 1 - stepper phase #1 Motor Out 1 2- '' '' #2 Motor Out 2 3- '' '' #3 Motor Out 3 4 - '' '' #4 Ground 5 - stepper common #1,3 Ground 6 - stepper common #2,4 Your program (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar question
|
|
Hi, acroname has the sonar modules for $45.00. www.acroname.com ---...--- (...) to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Stepper Motor.
|
|
I would like to have my HB controlling a stepper motor. It's a 4-phase unipolar permanent magnet motor. The names of the inputs are like this: 1 - stepper phase #1 2- '' '' #2 3- '' '' #3 4 - '' '' #4 5 - stepper common #1,3 6 - stepper common #2,4 (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar question
|
|
Eric Noyau wrote: <snip> (...) <snip> (...) <snip> (...) <snip> I asked about this a few months back, and Fred Martin himself suggested I might try the very same connection scheme that you mention. Here's what he suggested: <snip> (...) According to (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Implementation question
|
|
I am busy building the HB but I cannot get it to work yet. Here are the symptoms. The serial board works as expected and performs all tests as described in the implementation manual. RAM and HC11 are installed as well as the LCD. I am using the (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Sonar question
|
|
Hi all, I'd like to install sonar capabilities in my robot and I went to the FAQ to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Source of 754410 driver
|
|
I think that Newark sells them for about $4.15 each. (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | RE: Dead HB
|
|
(...) I´m using that nvrmas on HB and work excellent. You simply put the memory and disconnect the external battery! German Gentile (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Source of 754410 driver
|
|
Acroname (www.acroname.com) sells these chips for $5 each or a 3-pack for $12. (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Dead HB
|
|
I tend to agree. Most people think that if the display is dead, the system is dead. The fact that you can download the program is a good sign. I think, you then need to prove that it was downloaded using simple known commands to establish that it is (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Communication to the board.
|
|
Hi, I need to make a logic programm (eclipse or prolog) control the h-board-robot. Does anybody have any experience with something like that? I come from the AI and logic programming, and I don't have much experience with communication protocols for (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | how to unsubscribe
|
|
hi everyone, *please* don't send unsubscribe requests to the list. send them to me, fredm@media.mit.edu. thanks a lot. fred (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Bootstrap mode
|
|
hi all, i have trouble with my handy-board. Few days ago it works proberly, now i doesn´t go into the bootstrap modus. Both leds (red+green) lights and i can´t download the pcode. I tested the board with and without the serial interface. But it (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Question
|
|
Dear HB members: 1.- Is there any software for controlling two or more IR sensors??? 2.- Could you tell me how does the "IR_signal" works?? Thank you -- John A. Atkinson-Abutridy EMAIL: atkinson@inf.udec.cl Profesor Asistente Dept. de Ingenieria (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Source of 754410 driver
|
|
Newark has the TI SN754410NE chips. (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | A/D converter
|
|
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)
|
| |
| | unsubscribe
|
|
unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: inquiry
|
|
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)
|
| |
| | inquiry
|
|
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)
|
| |
| | Source of 754410 driver
|
|
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)
|
| |
| | Re: Sensor connections
|
|
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)
|
| |
| | Getting started with the project
|
|
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)
|
| |
| | Sensor connections [DAT]
|
|
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)
|
| |
| | Re: Dead HB
|
|
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)
|
| |
| | RE: Read A/D converter
|
|
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)
|
| |
| | Re: No stepper motor info in FAQ?
|
|
(...) 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)
|
| |
| | Re: data capture
|
|
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)
|
| |
| | Expansion Board availability?
|
|
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)
|
| |
| | No stepper motor info in FAQ?
|
|
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)
|
| |
| | Re: Dead HB
|
|
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)
|
| |
| | Dead HB
|
|
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)
|
| |
| | Read A/D converter
|
|
"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)
|
| |
| | Re: Basic Sensor Question
|
|
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)
|
| |
| | Re: Basic Sensor Question
|
|
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)
|
