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1  Community / Gigs and Collaborations / Re: Programmer needed to create a library to talk to wireless module. on: May 07, 2013, 10:44:13 pm
Actually... it wouldn't necessarily have to be a library. It could just be a demo showing how to initialize communication, timing, etc...
2  Community / Gigs and Collaborations / Programmer needed to create a library to talk to wireless module. on: May 06, 2013, 12:03:17 pm
I've got a timelapse/cinema motion control project that I'm trying to get finished up soon to go up on Kickstarter.  It uses several custom boards designed by CrossRoads here in the forums and the programming is well underway.  Two boards based on an Atmega 2560 chip need to communicate using a DNT24P wireless module, but so far I've just been using wired communication for development.  I need someone who can help write a library to communicate with the DNT24p module as the current programmer is occupied with other aspects of the project.  I'm in Los Angeles but could mail a pair of DNT24P modules to anyone in the U.S. willing to help.  I don't have a lot of money to offer but could offer more deferred payment after the Kickstarter launch.  I'm also an excellent machininst with a CNC mill and manual lathe I'd be happy to trade services if you have your own project now or in the future.

Info on the wireless module can be found here:

http://www.rfm.com/products/spec_sheet.php?record=DNT24P

Message me if you'd like more details on the project.

Thanks,

Aaron
3  Using Arduino / Motors, Mechanics, and Power / Re: motor control on: April 10, 2012, 12:50:58 pm
If it becomes too much for the chip to evaluate the encoder and the RC pulses simultaneously, what about offloading the encoder interface to an external quadrature counting chip like this, with a serial interface:

http://www.usdigital.com/products/interfaces/ics/lfls7366r-s

Would that make it easier?
4  Using Arduino / Motors, Mechanics, and Power / Re: motor control on: April 09, 2012, 07:45:45 pm
If .05425 uS resolution is not possible when measuring a pulse width with a '328 family processor, what would be the minimum resolution practical?

Aaron
5  Using Arduino / Project Guidance / Board with 8 DAC's on: October 19, 2011, 07:13:45 am
Hi,

I am new to Arduino... but I've been doing a lot of reading to see if some sort of MCU board has the capabilities I need.  I need 2 MCU's: one that has 8 analog inputs (ADC's) of 10-bit resolution or higher (12 bit preferred) that are polled frequently (50+ times per second) and the values are transmitted over RS-232 to another MCU which has access to 8 10-bit or higher DAC's. The board constantly updates the DAC's with the new values as they are received.

I haven't found much hardware with DAC's at all, but I did read about some Xmega chips that contain 4 10-bit DAC's on them, and articles mentioning I/O expanding products that might be able to add DAC's over an SPI bus... but none of it has been very clear to me.  If anyone has a suggestion as to what hardware could do this I would really appreciate it.  The Analog output signals could either be 0-5v or +/-10v.

The application is pretty simple... I have several input devices for some robotics equipment that use analog signals. I would like to locate these devices remotely from the equipment and transmit the signals wirelessly over one communications channel, probably a wireless rs-232 converter.

Thanks for any help.

Aaron
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