[time-nuts] Atmega?

Jim Lux jimlux at earthlink.net
Thu Feb 13 19:45:06 EST 2014


On 2/13/14 4:27 PM, Bob Camp wrote:
> Hi
>
> The number of bits and the performance of the ADC’s on the Arduino’s is pretty underwhelming compared to the stuff on other similarly priced MCU’s. If you are doing a design where the ADC matters, a PIC or just about anything from TI or Freescale will do a better job.
>

That's what actually drove me to the teensy3.. 16 bit ADC (no, you 
probably can't get that kind of accuracy, but 13-14 bits, yes) with 
differential inputs.  It's based on a Freescale Kinetix ARM MCU

A lot more memory than the Arduinos, too.

My only complaint with the micro-b USB is that it's awfully easy to rip 
that connector right off the board, and then it's "buy a new board" 
time, because soldering wires on is almost impossible: the pads and 
traces most likely went with the connector.

If I do a board layout for these things, I'd use a standard 0.1" center 
header and a USB to header adapter or something, like they do on PC mobos.




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