Search found 645 matches

by paul
Tue Sep 23, 2008 9:40 pm
Forum: Connecting to BBB, RBBB
Topic: USBTinyISP: initialization failed, rc=-1
Replies: 3
Views: 7468

Re: USBTinyISP: initialization failed, rc=-1

floresta, Sorry for the slow reply. You need to power the board separately from the ICSP header. I'm not quite sure why this is but my AVRISPmkII works the same way. Let me know if this works out for you. So set the shunt on either USB or external and either plug in the FTDI USB cable or an external...
by paul
Sat Sep 20, 2008 1:23 am
Forum: Software
Topic: Frequency to Voltage Conversion
Replies: 7
Views: 13835

Re: Frequency to Voltage Conversion

I think you might end wanting more speed and storage than Arduino provides but I might be wrong too. There are a ton of ARM boards out there that run embedded Linux, so the file system is already supported. That might be the way to go on this. I used one for an LED sign, and it was slick solution to...
by paul
Sat Sep 20, 2008 1:17 am
Forum: Development
Topic: Arduino proto board
Replies: 19
Views: 33535

Re: Arduino proto board

Send me some email with an address and I'll put you on the beta test list.

Paul
by paul
Thu Sep 18, 2008 8:37 am
Forum: Software
Topic: Frequency to Voltage Conversion
Replies: 7
Views: 13835

Re: Frequency to Voltage Conversion

You might want to take a look at LadyAda's Wave board - and SD boards for hardware. See's also got the library worked out for writing to FAT files, so as far as I can see it should be fairly pain free to do what you want. Brian Riley at wulfden.org has an eeprom card that will store a bit of data to...
by paul
Sun Sep 14, 2008 9:42 pm
Forum: BBB
Topic: Schematic or CAD files for rev. D of the BBB?
Replies: 7
Views: 20039

Re: Schematic or CAD files for rev. D of the BBB?

I just posted some new docs for the RBBB and I'll get the new docs for BBB up this week - Way, way overdue. A customer made me beautiful new schematics that are way more clear than mine. Same circuit - more clarity. As to the reset question - floresta is right that the P4 was made to plug into the f...
by paul
Sun Sep 14, 2008 9:31 pm
Forum: RBBB
Topic: 5=4 and 8=7?
Replies: 7
Views: 9140

Re: 5=4 and 8=7?

OK I finally got the docs posted that I did a while back. Some various issues are getting in the way of extremely gratifying documentation work.

See RBBBv1.6.revB2.pdf at the bottom of the RBBB page for the link.

Ask and yea shall receive (eventually)!

Paul
by paul
Fri Sep 05, 2008 6:46 pm
Forum: Hardware
Topic: P3 vs P4
Replies: 9
Views: 11711

Re: P3 vs P4

Waiting for some email response - I'll post it in the M.D. Policies topic. Phone proved useless and frustrating - endless phone tree with no human at the end. Maybe I didn't try hard enough.

P
by paul
Sun Aug 31, 2008 2:59 pm
Forum: 8x8 LED board
Topic: Game of Life?
Replies: 7
Views: 12904

Re: Game of Life?

I haven't heard about it from my customers. Lady Ada has a dedicated board for doing it though. That's what you may be remembering.

Paul
by paul
Wed Aug 27, 2008 11:46 pm
Forum: BBB
Topic: Only 3.6 Vdc on 5Vdc out
Replies: 1
Views: 5363

Re: Only 3.6 Vdc on 5Vdc out

tobias84, Glad you got it figured out. The board was designed with the USB cable running through the regulator to protect the USB line. The 300 mA regulator only shaves off a few mV so it's not a big deal. If you use a larger regulator I'd recommend the LM2940 which I'm going to sell on my website s...
by paul
Tue Aug 26, 2008 10:38 pm
Forum: Hardware
Topic: P3 vs P4
Replies: 9
Views: 11711

Re: P3 vs P4

btw, how do i track track the stuff? you said that "Priority Mail International shipping" is trackable, right? :) They advertise it that way but I haven't had much success doing it. I'll call USPS tomorrow and see what the deal is on this - they advertise as trackable and then don't seem to do anyt...
by paul
Tue Aug 26, 2008 10:34 pm
Forum: Hardware
Topic: P3 vs P4
Replies: 9
Views: 11711

Re: P3 vs P4

The P3 doesn't have the reset line on it. I've given up on it and will take the item down when my new site goes up soon.

My docs are somewhat out of date. I just ship the P4 when people order P3's so the P3 is going away. Don't tell anyone but you could even save a buck ordering the P3 :)
by paul
Tue Aug 26, 2008 10:31 pm
Forum: Development
Topic: arduino.cc... is it dead?
Replies: 2
Views: 8117

Re: arduino.cc... is it dead?

They've outgrown their ISP. LadaAda has been talking about mirroring their site because of reliability issues.

"They're working on the problem". Probably going to be about 3 wks to a month before they get new ISP and transfer things.
Most of the reference should be local with the IDE.

Paul
by paul
Sat Aug 23, 2008 11:33 pm
Forum: 8x8 LED board
Topic: Power Tips
Replies: 3
Views: 8448

Re: Power Tips

Yes that's the tradeoff with the non-multiplexed displays. You get awesome optical power out, but you need an awesome power supply. Here's the math - with 1k Rext resistors the LED's are supposed to draw 20 ma each so, when you light them all up you've got 64 x 20 mA = 1.2 A per panel. Look around f...
by paul
Sun Aug 17, 2008 6:42 am
Forum: Connecting to BBB, RBBB
Topic: Auto reset problem on BBB
Replies: 3
Views: 6492

Re: Auto reset problem on BBB

Cheater,

If you're using Linux see the Linux see the thread in the BBB topic. Patch link below.

Here's the patch for Linux to make autoreset work with the FTDI cable, courtesy of one of my customers.
I've renamed it LinuxFixArduino.zip and it can be found here http://moderndevice.com/connect.shtml
by paul
Sat Aug 16, 2008 3:24 pm
Forum: 8x8 LED board
Topic: Construction tip
Replies: 1
Views: 6092

Re: Construction tip

Yes, that's in the docs, but you need to mount the LED's first - then test them to make sure that they work and are solid before covering them with the chips. In a pinch if you get stuck, you can mount replacement LED's "surface mount" style on the pads. No one is going to see this from a distance o...
by paul
Tue Aug 12, 2008 9:36 pm
Forum: BBB
Topic: BBB Troubleshooting: voltage / stk500_recv(): not responding
Replies: 5
Views: 15287

Re: BBB Troubleshooting: voltage / stk500_recv(): not responding

brod, You're not going to see more than about 4.8V. This is shaved off by the low-dropout regulator. Other implementations of Diecimila-like boards, generally don't run the USB through the regulator, and use a polyfuse instead. I chose to use a LDO regulator and run the USB voltage through the regul...
by paul
Sun Aug 10, 2008 9:16 am
Forum: Development
Topic: Arduino proto board
Replies: 19
Views: 33535

Re: Arduino proto board

Thanks for the drawing - it's about what I had in mind.

Paul
by paul
Sun Aug 10, 2008 9:14 am
Forum: BBB
Topic: BBB Troubleshooting: voltage / stk500_recv(): not responding
Replies: 5
Views: 15287

Re: BBB Troubleshooting: voltage / stk500_recv(): not responding

Glad you got it going - I'm concerned about pins 7 & 8 though - you should see close to 5V there. The low-dropout regulator will shave 100 mv or so off the 5V USB voltage, so maybe 4.9 V or so on USB and real close to 5 on external. Try reheating those socket pins and any others that look suspicious...
by paul
Thu Aug 07, 2008 10:07 pm
Forum: Development
Topic: Arduino proto board
Replies: 19
Views: 33535

Re: Arduino proto board

Yes, I've thought a lot about this - Instead of the shield idea - just give people the Freeduino functionality on a proto board. Send me a rough sketch of scale and size if you want. I should have hopped on this idea a while ago but there's no time like the present. Or I wish I could make some time ...
by paul
Thu Aug 07, 2008 12:17 pm
Forum: RBBB
Topic: Troubleshooting assistance...
Replies: 2
Views: 4882

Re: Troubleshooting assistance...

Sorry the manuals out of date. I've got most of the changes made and just need to carve out some time to finish it. Maybe this will light a fire under me.

That behavior is all correct for Diecimila bootloader, which we've been shipping with RBBB for six mo's or so.

Paul