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1  Using Arduino / Programming Questions / Re: NRF24L01+ Getting Started Sketch Timing Problem on: February 06, 2014, 05:07:04 pm
Hello. Any idea if this fix has been pulled into maniacbug's code?
2  Forum 2005-2010 (read only) / Development / Re: SPI library? on: September 05, 2008, 09:43:07 pm
Well, if I can ever get around to writing something generic enough to be useful, I'll submit it.
3  Forum 2005-2010 (read only) / Development / SPI library? on: September 04, 2008, 01:22:21 pm
Is there a SPI library around? I've seen posts where people refer to one, but I've been unable to track anything down. The code I do find seems to be custom each time...


4  Forum 2005-2010 (read only) / Development / Re: FTDI FT232RL Group Buy on: October 27, 2008, 02:21:32 pm
Ok, we're up to a full reel or so. I'm going to close the deal and place the order in the next couple of days. If you're interested, now's the time to speak up.

5  Forum 2005-2010 (read only) / Development / Re: FTDI FT232RL Group Buy on: October 23, 2008, 10:41:03 pm
Ah, very nice tip!
6  Forum 2005-2010 (read only) / Development / Re: FTDI FT232RL Group Buy on: October 23, 2008, 07:37:18 pm
Yeah, if the decision was between Mouser and DigiKey, I'd be pretty hard pressed to find a $600 reason to go with DigiKey.   smiley
7  Forum 2005-2010 (read only) / Development / Re: FTDI FT232RL Group Buy on: October 23, 2008, 05:55:04 pm
The distributor has not been finalized yet. Might be one of the usual players like Mouser, etc. Any suggestions?

Yeah, a full reel is spendy. I personally only want like 50 or so. Soldering a few at a time by hand isn't too bad. Most of the folks who have expressed interest are shops who are producing products in commercial quantities...likely with solder stencils, pick & place machines, and reflow ovens.   smiley

8  Forum 2005-2010 (read only) / Development / FTDI FT232RL Group Buy on: October 23, 2008, 12:25:53 pm
I'm putting together a group buy of the FTDI FT232RL chips, as used in the Arduino. I'm trying to get enough commitments together to get up to at least 1 full reel of 2000 chips. The plan is for me to purchase the parts, and then distribute them to the end-users. I'm not going to make any money off of this...I'm just trying to get a good deal on some parts.  :-)

If you are interested, drop me a line.


9  Forum 2005-2010 (read only) / Interfacing / Re: Water level Sensor on: July 16, 2009, 07:14:08 pm
Lower the current and voltage to reduce electrolysis. Also, you could generate and send an AC signal instead of DC.

Alternately, try putting a capacitive sensor on the outside of the tank.
10  Forum 2005-2010 (read only) / Interfacing / Re: Arduino + CC2500 2.4Ghz on: October 02, 2008, 04:29:33 pm
Interesting? Which module is that? Pricing? FCC certification?

I'm working on a project in which I intend to use pre-made ZigBee modules like that. I have some from Microchip, but always am interested in other options.
11  Forum 2005-2010 (read only) / Interfacing / Driver for 320x240 color graphic lcd? on: January 26, 2009, 09:13:49 pm
I have some Hantronix HDM3224ATS-C-JST color touch LCD panels. The closest appnote I could dig out of the website was for a similar monochrome unit. It listed some driver chips, but they are all out of production.

Can anybody recommend a driver chip that I can buy or sample in small quantities, and preferably somebody has interfaced to an Arduino?

12  Forum 2005-2010 (read only) / Interfacing / LCD DV-24200-S1FBLY (KS0066 chip) on: November 10, 2008, 12:04:51 am
I have a bunch of these Data Vision DV-24200-S1FBLY LCD modules. They are 24x2 displays with a 14-pin interface. The information I've seen indicates that the KS0066 chip used on them is HD44780 compatible. Links to some data:

Product at Data Vision Website


I also have some 20x4 displays from a different manufacturer that I have been using successfully in 4-bit mode with the LiquidCrystal library. The pinout for both of the displays is the same.

When I plug in the DV-24200, all I get is garbled junk.

I have been over the connections several times to make sure the right pins are connected to the right places, and all seems in order.

Any suggestions from the hive mind?

13  Forum 2005-2010 (read only) / Interfacing / Re: Need help with multiplex VFD programming on: October 02, 2008, 04:30:18 pm
14  Forum 2005-2010 (read only) / Interfacing / Re: Need help with multiplex VFD programming on: September 29, 2008, 02:28:37 pm
Yep, that's where I got most of the info I have. The other info I have is from the Oki MSC1162A spec sheet, which is the primary driver chip on the board.

However the stuff at the OVC site is very high level, and the code is only available as a hex file for PIC controllers. I have no PIC hardware or software, so I have been unable to make use of the code.

Thanks, though!

15  Forum 2005-2010 (read only) / Interfacing / Need help with multiplex VFD programming on: September 29, 2008, 01:00:14 pm
I have a Futaba NA202MD13AA vacuum fluorescent display module. IT is a nice big 2x20 display, available quite would be fantastic to get these working with Arduino.

According to some info I dug up on the net, this is a custom unit made for NCR by Futaba. As a result, there is no official programming info I can find out there for it. All of the Futaba docs I can find all refer to modules with high-level serial or parallel interfaces.

According to what I can find, however, you basically need to bit-bang the raw bits into the display and then keep scanning to get it to display. Aside from the Vcc and Ground pins, there is a clock, data, and enable pin.

I've written some code, but so far have been unable to get anything to show up.

Does anybody have experience or some example code on how to talk to similar devices?


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