I think I fried my Sumo11, but not totally. I hooked the power up wrong, just for a second, I know that's all it takes. When i hooked it up it was power to the...
I'd start by removing the L293 motor driver chip from the lower board and the 74HC237 servo driver from the upper board. These do not have to be installed for...
Thanks for the reply Dan I tried pulling those two chips. Still the same results. I event tried replacing the L293 with a 74551 (I think that's the number). I ...
Mike, I suppose it's possible that some breakdown voltage occured accross the FETs in the H-bridge chip and got back to the processor, I have never run any...
I ran a test on just the bottom/main board. HCLoad worked part was only, see below. I just wanted to check to see that I had run the test correctly seeing that...
I'm sorry for not getting all the info from you before directing you to test it that way, I need to know if you have the Rev 2 main board, or the Rev 1...
That's OK Dan i know troubleshooting over email isn't that easy. I do have the early rev 1 boards with the fixes done. When I did the test I had mem set to...
Mike, With the Rev 1 prototype board it's not as easy to go back to the single board mode. Here's what must be done: Remove R6 & jumper the Program button....
Dan I jumpered the program button ad took out R6, ( I hope everyone hates removing components as much as I do) :) ... Sorry this is being such a problem. Mike...
Dan I'm still stumped here. I replaced all three chips on the base board. I have R6 removed and the program btn jumpered. Now with the chips replaced I can...
OOOPPPPS OK Dan I shot off that last email too fast. I sat down and did a bunch of thinking and reading. We had forgotten something when it came to setting the...
Mike, I think you need to reload the memory with a fresh Pcode. What I mean is that even though you're putting in new programs, you're still running on the...
Dan I just wanted to finalize this thread. I replaced the NVRAM and that fixed it. So in the end one 68HC11 and one NVRAM. $20 or so total plus shipping for...
I wonder if a simple diode in series with the positive power input would have saved you some money and all the trouble. For all those prone to connecting power...
John, The only trouble with a baising diode is that they drop .7 volts, and a bridge drops 1.4volts. Personaly, I like to get all the power I can to my board...
Hello. Does anybody know where I can find some kind of interface or programs to test or run wireless communication on the Sumo board? I'm trying to connect...
That is true, comfort often suffers with increased protection... JOhn M... ... and ... can ... input ... this ... the ... 68HC11 ... int ... What I ... still ...
You may want to check the Handyboard site, the Sumo11 will do anything the Handyboard can do. http://www.handyboard.com check in the community link. -Dan...
RidgeSoft(tm) has just released the first version of RoboJDE(tm) Java(tm)-enabled Development Environment for the Handy Board and Sumo11 robotics controllers. ...
Steve Grau
steveg@...
Oct 4, 2003 12:06 am
137
Hi, My name is Kit and I am currently attending Seattle University. Right now, a few of us are working on the robocup project where each of us are assigned to...
Hi Kit, You can use the SPI ports(MOSI,MISO etc).I have the rev 1 board in which i had to bring out the connections from the expansion .I'll give you the...
There is some info available here -> http://www.cctc.demon.co.uk/stepper.htm but the info there is specificaly for the Handyboard which is similar but not...
Hello people. I'm trying to connect BiM 2 transceiver from Radiometrix, and having some trouble.I could not find any documentation of Sumo 11 expansion board...
It looks to me like the Radiometrix transeivers are connected through a TTL type Rx/Tx. One of the main differences between the Sumo11 and the Handyboard is...
Yes, I set one BiM 2 with 2 Max 232 TTL converters on the transmitter side (connect to my computer through the serial port, and works ok). However, it is...
Ok, I've looked at the link you posted, it shows that the reciever is connected to the RJ11 through pins 5 (yellow) and 2 (black). On the Handyboard these...
I was wondering if anyone has info on whether the Sumo-11 board will work with optical encoders as the the standard HB did? Im thinking it might, because its...
Michael, Yes the Sumo11 can use the Encoders in the same mannor as the Handyboard does. I've uploaded a zip file to the files area that needs to be put into...
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