Modern Device Forum

Just a final followup.
Here is the link to the arduino glcd library:
http://code.google.com/p/glcd-arduino/

--- bill

Ok, so things drug out way longer than expected.
But a Beta version of a new Arduino GLCD library is available.
See this arduino thread for details: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1279128237/

A tremendous amount of work and effort was put in to add new features, make it easy to ...

For the ultimate answer consult the actual source code:
http://code.google.com/p/arduino/source ... _arduino.c
All the arduino pin functions use table lookups to map the naked constants to a port and a bit.

--- bill

You could always use a teensy board: http://www.pjrc.com/teensy/index.html
directly on a protoboard. I use them with header pins and put female headers on the protoboard.
That way I can transfer a breadboard design directly to a protoboard.
Same thing I do with the BBB boards.

--- bill

I don't have any yet, but one of the things that I really like is that along the side
of those as well as some of their other prototype boards, is 20 holes for connections.
This is great for hooking up things like 16 pin LCDs and even 20 pin GLCDs.
You could put female headers on the proto board ...

There is always these boards:
http://www.protostack.com/index.php?mai ... cPath=1_20
--- bill

Then there is also analogWrite(pin, val) where pin is a "digital" pin#.
vs analogRead(pin) where pin# is a "analog" pin#.

So analogWrite() and analogRead() are referring to two different physical AVR pins
but yet use the same pin# "token".

Complicating things is that analogWrite() only works on ...

Guys,
I haven't forgotten about this. Much work has been done
and good things are happening.
I am working with Michael Margolis on an arduino glcd library.
He already had one: http://www.arduino.cc/playground/Code/GLCDks0108
I have enhanced it by updating the low level h/w access routines
to make ...

BINGO!
Here is a simple way to use the existing card for both the bingo card and a pin overlay and
still do single side printing.

Having the full bingo card is actually kind of nice as you can hold the card up to
your breadboard to make sure you didn't offset your wires.

Users who want the pin ...

Thanks Bill, it's a nice eco-friendly idea - I guess it would depend on how well my printer will register when printing on the backside - and also how opaque the paper is for two-sided print job. Experiments in order.
Paul

I understand the need to keep labor and material costs down,
thats why ...

How many LEDs are you trying to control?
You can control up to 120 on a m168/m328p and still use the 2 pins for serial communication.
The trick is to think multiplexed where not all of them are lit at the same time and
to use a column and row addressing scheme.
To get to 120 you have to cheat a bit ...

We've got a fab lab here now - I might try and stack a few up on card stock and see if it can get through 10 at a time.
Good give-aways!

Thanks again for your efforts Bill

So does it come out die cut or is this just for printing?

I was thinking that there is enough room on the existing ...

Attached is a zip file with the latest BBB pin overlay card.
There are two files in the archive.
A PDF image and the original OpenOffice writer document used to create it.

See previous post for how to print it and avoid scaling issues.

Enjoy,

--- bill

Ok, so I finally decided to create what I think is a properly scaled PDF image.
There are so many different components in Windows that try to make your life "easier" by doing
auto scaling that this turned out be more difficult than it should have.
At least for me now, if I print the PDF from Adobe ...

slows down the code by having to do SBI/CBI instructions for every single bit
For flexibility I have decided not to try to keep the data bits on a single port any more. I just write my code to set the bits individually using SBI/CBI all the time. For the worst case it takes 6 clock cycles to set ...

Don, That's Very Cool.
One thing I did differently was to skip over the Tx/Rx (D0 & D1) to allow use of the serial port concurrently
with the GLCD.
That's why I had to have 2 wires going over to the analog pins. The analog pins are for DI and RESET.
All the other pins were run straight across.
The ...

When I decided to include inductor I looked around for a small unit and also the right price and didn't find any through-hole parts that fit the bill.


I understand, as this is a cost sensitive product. But perhaps it could be an order option where you
charge say an extra $1.00 for those that ...

Paul,
I have to say I love the BBB board. From the nice light PCB color with the easy to read
labels to its ease of use for prototyping.

If you ever do respin the BBB board for some reason, here are a few tiny things that perhaps
might be worth considering.

- Make ISP power line larger
In some ...

Paul,
I've seen sample projects with the V-usb/USBTiny stuff working on ATtiny45s with no crystal.
Really nice for that environment as you can get a full USB serial connection to the host
using the serial CDC without needing any additional USB->serial hardware.

So it definitely could work on ...

I exchanged a few PMs with Don off line and I deciced that to make it easy for anyone
wanting to duplicate this and have a nice GLCD to use for text or graphics,
I'll post all the code which includes a demonstration program, with a schematic,
along with some additional photos of my h/w setup.
I need ...