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Member #184658

Member Since: January 3, 2011

Country: United States

  • Hardly an improved SAMDxx! This is a Cortex M4 with Ethernet on die, running at 120MHz. On the other hand, the SAMDxx series chips are Cortex M0+, a really value segment architecture.

    Arduino Due has a Cortex M3 with Ethernet (but Ethernet is not wired out). And this E54 is yet another notch up. The big difference between the M3 and M4 is M4 has DSP, although Atmel Software Foundation (ASF) library's DSP implementation has always been... lacking...

    The D series chips are good for low end value segments... particularly the D21 is so simple to boot up... you don't even need to an external 12MHz crystal to run USB. There is no complicated power requirement boot up sequence... just wire one Vcc and Gnd and you are good to go. So simple, even I can wire it up before my morning coffee with just some wires, spit, and glue.

    Why bother with E54? SAME70 board is a much better deal, https://www.digikey.com/product-detail/en/microchip-technology/ATSAME70-XPLD/ATSAME70-XPLD-ND/5725743. 300 MHz. Cortex M7 architecture with double precision floating point instead E54's single precision, and at less than 1/2 the price with hell more leads routed out (except the headers are not populated, but who's afraid of soldering a little header?).

  • Would SparkFun carry other models of Cherry MX and ML switches? I mean, not everybody love the Blue ones. And other models like the ML are useful for non-keyboard uses.

No public wish lists :(