Search found 60 matches

by floresta
Mon Aug 24, 2009 9:46 am
Forum: Exhibition
Topic: GLCD Fun
Replies: 17
Views: 25537

Re: GLCD Fun

It's too neat. It can't possibly work. It must be a fraud.
Where can I get one?

Don
by floresta
Mon Jul 13, 2009 8:04 pm
Forum: Development
Topic: BBB pin overlay card for non Arduino users
Replies: 19
Views: 27330

Re: BBB pin overlay card for non Arduino users

bperrybap: I am using Adobe Reader 8.1.5 running on XP Pro SP3. The printer driver offers no scaling options. Adobe puts it at 94% when choosing either "Fit to printable area" or "Shrink to printable area". When I look at the output after printing at 100% I see that everything seems ok from 'rst' th...
by floresta
Mon Jul 13, 2009 1:00 pm
Forum: Development
Topic: BBB pin overlay card for non Arduino users
Replies: 19
Views: 27330

Re: BBB pin overlay card for non Arduino users

It printed out just a little large on my ancient HP-4P but still quite usable.

Don
by floresta
Mon Jul 06, 2009 8:47 am
Forum: BBB
Topic: Resonator vs. quartz crystal
Replies: 3
Views: 10110

Re: Resonator vs. quartz crystal

Paul:

Why not take your telepathic ware concept one step further and just send me the stuff that I have been thinking of ordering?

Don

p.s. While you are at it please include a 'round tuit'.
by floresta
Sat Jul 04, 2009 9:33 am
Forum: Development
Topic: BBB pin overlay card for non Arduino users
Replies: 19
Views: 27330

Re: BBB pin overlay card for non Arduino users

I want one!

Don
by floresta
Wed Jun 10, 2009 12:15 pm
Forum: Exhibition
Topic: New 4bit LCD library
Replies: 7
Views: 10687

Re: New 4bit LCD library

teedeeus: I agree with what you are trying to do with the LCD library - here are some comments, both pro and con, on what you have done so far. I hope you can use them to refine your project. In my opinion removing the 8-bit stuff from the library is a good idea. I can't see any reason to try to acc...
by floresta
Mon Jun 08, 2009 12:02 pm
Forum: Hardware
Topic: Current sourcing and sinking on Digital Output Pins
Replies: 6
Views: 9549

Re: Current sourcing and sinking on Digital Output Pins

Paul and BobW: DC Current VCC and GND Pins................................ 200.0 mA in the "Absolute Maximum Ratings* section It looks like I missed that one. That would have to be considered along with the info I gave previously. Also, the 300mA figure was obviously incorrect as the 200mA figure qu...
by floresta
Mon Jun 08, 2009 11:54 am
Forum: Hardware
Topic: Current sourcing and sinking on Digital Output Pins
Replies: 6
Views: 9549

Re: Current sourcing and sinking on Digital Output Pins

BobW: You get the answer to questions such as this from the data sheet, in the 'Electrical Characteristics' section. Of course it helps if you have a background in Electrical Engineering in order to understand that information. The 40 mA per pin that 'teedeeus' mentions is an absolute maximum rating...
by floresta
Thu Apr 09, 2009 5:33 pm
Forum: Connecting to BBB, RBBB
Topic: FTDI TTL 232R USB to TTL serial cable to program attiny2313?
Replies: 2
Views: 5368

Re: FTDI TTL 232R USB to TTL serial cable to program attiny2313?

Dalolin: I'm no expert either, but as I see it the reason the FTDI cable works with the RBBB etc. is twofold. First of all the 'duino chips have a bootloader program and second the Arduino IDE (Integrated Development Environment) is set up to use that bootloader. I don't think your attiny2313 has a ...
by floresta
Tue Mar 31, 2009 2:38 pm
Forum: Connecting to BBB, RBBB
Topic: Normal state of USB BUB?
Replies: 8
Views: 9929

Re: Normal state of USB BUB?

webkraller: I guess I'm not quite sure what to look for to determine if the reset line is working properly or not. Take a look at Paul's answer in the thread: "Unreliable upload from Mac using FTDI USB cable" for hints on how to check out the reset signal. You need the information in the next to las...
by floresta
Tue Mar 31, 2009 9:18 am
Forum: Connecting to BBB, RBBB
Topic: Normal state of USB BUB?
Replies: 8
Views: 9929

Re: Normal state of USB BUB?

webkraller: It looks like you have may have run into the common TxD/RxD nomenclature problem. Information that is transmitted (TxD) from one board is received (RxD) on the other. The TxD line from the FTDI chip on the BUB has to connect to the RxD pin of the ATmega chip on the RBBB and the RxD line ...
by floresta
Fri Feb 27, 2009 1:00 pm
Forum: BBB
Topic: BBB input voltage
Replies: 2
Views: 9039

Re: BBB input voltage

Matt: The L4931 voltage regulator can handle up to 20v and the 47uF input capacitor (at least the one on my board) is rated at 25v so you should be OK with 15v input. As you mentioned it is the heat that is of concern but most regulators will just shut down if they get too hot. Paul will probably an...
by floresta
Tue Feb 24, 2009 10:10 pm
Forum: Connecting to BBB, RBBB
Topic: programmer is not responding
Replies: 4
Views: 7680

Re: programmer is not responding

compaqdrew: I've remapped the pin header for the USB-BUB I don't know much about the BUB or Dorkboard, but I do know about RS-232. I think you may have done too good a job on your remapping. The TxD line from the FTDI chip has to connect to the RxD pin of the ATmega chip and the RxD line form the FT...
by floresta
Mon Sep 22, 2008 9:07 am
Forum: Connecting to BBB, RBBB
Topic: USBTinyISP: initialization failed, rc=-1
Replies: 3
Views: 7046

Re: USBTinyISP: initialization failed, rc=-1

GorillaCoder: Paul has a real job and probably hasn't had time to look at this yet so I will try. 1. The "bootloader" is the code that allows you to download your program code (sketch) to the microprocessor so I don't think you want to do this Tools/Burn Bootloader/w USBTinyISP since you are probabl...
by floresta
Sun Sep 21, 2008 9:27 am
Forum: Connecting to BBB, RBBB
Topic: Connection Questions
Replies: 10
Views: 16528

Re: New Forum & Connection FAQ

Larryk - I believe you have outlined the problem right here. Could it be the breakout board I have only connected the tx,rx and power & grd to the bbb? do i need to connect to the reset pin? or do your boards only work with your cable? The FTDI cable that Paul and others supply uses the RTS# (the # ...
by floresta
Fri Sep 12, 2008 10:55 pm
Forum: RBBB
Topic: 5=4 and 8=7?
Replies: 7
Views: 8597

Re: 5=4 and 8=7?

As far as R1 and R2 go ... regardless of the labels, the 10K resistor goes next to the reset switch and the 1K resistor goes next to the LED.
by floresta
Fri Sep 12, 2008 10:52 pm
Forum: RBBB
Topic: 5=4 and 8=7?
Replies: 7
Views: 8597

Re: 5=4 and 8=7?

I think you are looking at 'RBBBv1.5revB.pdf'. You must have missed the disclaimer, printed in red, below Figure 1. that says: This is a transitional document. The board layout above has been updated to reflect Rev. B changes but the rest of the photos in these instructions are the original RBBB boa...
by floresta
Thu Sep 11, 2008 5:07 pm
Forum: BBB
Topic: Schematic or CAD files for rev. D of the BBB?
Replies: 7
Views: 19451

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

If you are asking how to connect a P4 Serial Programming Adapter to a BBB or RBBB the answer is that the P4 connects, pin for pin, to the first five pins on the BBB header (RST, GND, +5, 0RX and 1TX). The P4 can also connect, pin for pin, to the first five pins on the RBBB header, the one on the sid...
by floresta
Fri Aug 01, 2008 5:00 pm
Forum: Connecting to BBB, RBBB
Topic: Auto reset problem on BBB
Replies: 3
Views: 6096

Auto reset problem on BBB

I have the "auto reset problem" on my new Bare-Bones board. It is similar to, but not exactly the same, as some of those described in the RBBB Auto Reset Problem thread. In my case the auto reset will work exactly once after the USB cable is initially connected to the computer. After the first uploa...
by floresta
Mon Jul 28, 2008 6:59 pm
Forum: BBB
Topic: Extra Pin on BBB Rev D
Replies: 1
Views: 4655

Extra Pin on BBB Rev D

What is the purpose of the fourth pin on the +5V/EXT (formerly J1/J2) block?