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  • Author Author: YT2095
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the Uno32

YT2095

A bit of an Impromptu blogging here (I really love the concept of Blogs btw, I`m new to it and wish I`d discovered it earlier instead of the silly website attempts I made in the 90`s) I digress.

anyway... I just to delivery of a rather snazzy little dev board made by Digilent or Chipkit (one of the two anyway), and I`m really rather impressed!

I`v been considering for a long time whether to get an arduino Mega 128 or 256, and happened by chance to find the UNO32.

ok, there was no "Chance" involved, it was a guy on Twitter that mentioned it, so I looked into it myself.

I have to admit I find the whole board and IDE a pleasure to work with so far, and although I Do love Atmel devices (not just the MCUs), PIC does have quite a bit going for it too!

 

as a fan of Overclocking (pun somewhat intended), I am intruiged by the whole idea of 80MHz clock speed running "sketches" (we used to call them Programs in  my day!).

in particular the Never-Never land of Analog, I`v already proven that an atmega 328p will run perfectly happily at 26MHz and perfom A to D conversions to 8 bit Binary out to get a good 10+KHz sample rate, but then think of the same code running 5x faster!!!! image

this in itself opens up plenty of possibilities. use the onboard SRAM to sample the code, manipulate it and make all kinds of Echo effects and voice changers, VLF radio  signals, Video capture etc...

or even the Inverse of D to A, and maybe generate vid signals or VLF code+carrier, maybe even a DCO for SDR with a hand full of parts and a simple mixer chip?

I`v not even touched upon Robotic modules or the ordinary stuff  yet (use you Own imagination! image ).

 

so in a nutshell, this board (esp when you consider the cost), is well worth a look into in My opinion, you Will fine a use for it even IF it`s not your cup of tea.

 

ok, I`ll shut up now :|

  • in reply to DAB

    neat idea, I`v never really tried a microphone with mine, only ever a Tape recorder playing music.

    the program I use is very simple too, but I can`t show you because it won`t let me cut and paste into here for some reason???

    but the main line goes something like: PORD = (analogread (0)/4); after setting up portd as outputs.

    I could logical shift right 2 places to effect a divide by 4, but it didn`t seem to make any difference.

    from there I just feed the 8 output lines to homemade R2R ladder network to an OP-Amp set as a Voltage follower to my speakers (amplified).

    I had a quick chat with Nick Gray on here about A to Ds that were fast, and he hooked me up with a few part numbers, so I have 4x 20MHz 8bit A to Ds now (the ones I de-SMD`d a blog ago).

    I`m looking forwards to hooking those up Directly to an Antenna and then manipulating the data to "Tune in" to different frequencies and Modes, it Should in theory work, but we`ll see image

  • Hi YT2095,

     

    I used my UNO32 to test the Wolfston MEMs microphone and I agree, if you want a powerful MCU in a small package and price, the UNO32 is for you.  The IDE is nearly the same as the Arduino and Digilant rewrote the libraries for the UNO32, so you can almost go from the Arduino to the UNO32, but not quite always.

     

    For my tests, it was easy to set up, collect the data and verify the microphone.  I was going to use it for my CNC mill, but decided the Arduino would be better as it does not need the speed.  If I change my mind, it should be an easy replacement.

     

    DAB

  • I'm looking forward to putting one to use in an audio processing project.  I think the extra horsepower will come in handy.

     

    Also, I wish the Arduino DUE, ARM-based, would come out soon.  It's been awhile since it was announced last September.  I think it will be excellent for the future of the Arduino platform as it will then be avaible on 3 different microcontroller families.