[time-nuts] IRIG-B with Arduino

Eric Garner garnere at gmail.com
Wed Dec 15 23:57:23 EST 2010


The 168 is it's junior cousin, and it's available. 

Sent from my Banana jr (tm) Mobile Device

On Dec 15, 2010, at 7:21 PM, "Bruce Lane" <kyrrin at bluefeathertech.com> wrote:

>    Hmm! Hadn't heard that... Any other Atmel DIPs among the AVR family you'd suggest?
> 
>    Thanks.
> 
> *********** REPLY SEPARATOR  ***********
> 
> On 15-Dec-10 at 18:44 Eric Garner wrote:
> 
>> You may want to avoid the 328p. for the last year there have been supply
>> problems to the distributors. 
>> 
>> -eric
>> 
>> Sent from my Banana jr (tm) Mobile Device
>> 
>> On Dec 15, 2010, at 6:23 PM, "Bruce Lane" <kyrrin at bluefeathertech.com>
>> wrote:
>> 
>>>   In fact, I was looking very hard at the 328P. AND I just happen to
>> have an STK500 on the way from the east coast (thanks to an Ebay purchase).
>>> 
>>>   Already got AVR Studio installed, and I also have IAR's AVR package
>> standing by. In short, I've got plenty to learn with.
>>> 
>>>   And you're right. I'll be learning both C and AVR assembler as I go
>> along, but the way I learn best is to actually DO something with
>> programming rather than just taking abstract example problems.
>>> 
>>>   Banzai! ;-)
>>> 
>>> *********** REPLY SEPARATOR  ***********
>>> 
>>> On 14-Dec-10 at 22:37 John Miles wrote:
>>> 
>>>>> Fellow clock-tickers,
>>>>> 
>>>>>   I'm finally starting to learn microcontrollers, and have
>>>>> selected Atmel's AVR line as my tool of choice. I've also
>>>>> discovered the Arduino site, and am starting to learn their IDE as
>> well.
>>>>> 
>>>>>   My first goal will be an open-source/open-hardware IRIG-B
>>>>> decoder (takes IRIG-B 1kHz stream, sends the timecode to an LCD
>>>>> panel). I've noticed a distinct lack of hobby-priced decoders on
>>>>> the market, and I intend to try and remedy that.
>>>>> 
>>>>>   My initial development platform will be the Arduino
>>>>> Mega-2560 board. However, that particular microcontroller is
>>>>> unlikely to be my final chip of choice due to the fact it's not
>>>>> available in a hobbyist-friendly DIP package. If others with more
>>>>> development skill have suggestions for a different chip, I will
>>>>> gladly listen.
>>>>> 
>>>>>   Stay tuned for further developments (no pun intended). I
>>>>> expect this to take at least a few months, as the learning curve
>>>>> looks kind of steep.
>>>> 
>>>> That's a good family of parts to start out with.  It is very well
>> supported
>>>> and easy to work with.  You don't really need to mess with the Arduino
>> IDE
>>>> and all the trimmings -- just set up AVR-GCC with WinAVR or one of the
>>>> newer
>>>> distributions and go from there.  If you have ever done any C
>> programming
>>>> before, the learning curve will be measured in hours or days, not
>> months.
>>>> If you haven't, well... there's always assembly.
>>>> 
>>>> There is a new low-cost kit with Arduino-like USB programming
>> capability on
>>>> the market:
>>>> http://www.seeedstudio.com/depot/usnoobie-kit-p-708.html?cPath=104_128
>>>> 
>>>> The first batch of these shipped with broken bootloader code so you
>> have to
>>>> have an STK-500 or similar programmer to get them up and running.  I
>>>> imagine
>>>> that's been fixed by now, but at any rate, the Atmega328P is probably
>> the
>>>> chip you want, if you want a higher-end AVR controller that still comes
>> in
>>>> a
>>>> DIP.
>>>> 
>>>> I just rigged one of them up to drive a YIG synthesizer:
>>>> http://www.thegleam.com/ke5fx/stellex.htm (see December 2010 update at
>> the
>>>> very bottom of the page).  Apart from the USB bootloader confusion and
>> the
>>>> presence of a couple of spurious error/warning messages in the
>> avrdude.exe
>>>> programmer utility, I'd give it two thumbs up at a minimum.  Great
>> little
>>>> device.
>>>> 
>>>> -- john, KE5FX
>>>> 
>>>> 
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>>> 
>>> 
>>> -=-=-=-=-=-=-=-=-=-=-=-
>>> Bruce Lane, Owner & Head Hardware Heavy,
>>> Blue Feather Technologies -- http://www.bluefeathertech.com
>>> kyrrin (at) bluefeathertech do/t c=o=m
>>> "Quid Malmborg in Plano..."
>>> 
>>> 
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>> 
>> http://www.eset.com
> 
> 
> -=-=-=-=-=-=-=-=-=-=-=-
> Bruce Lane, Owner & Head Hardware Heavy,
> Blue Feather Technologies -- http://www.bluefeathertech.com
> kyrrin (at) bluefeathertech do/t c=o=m
> "Quid Malmborg in Plano..."
> 
> 
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