User Manual

You might be wondering

why use this when you can get a HUZZAH Feather? (http://adafru.it/2821) Well, you get

A highly-capable Cortex M0+ processor with ton more I/O pins, lots of 12-bit ADCs, a 10-bit DAC, 6 total

SERCOMs that can each do SPI, I2C

UART (3 are used by the existing interfaces, leaving you 3), plenty of

timers, PWMs, DMA, native USB, and more (check out the Datasheet (https://adafru.it/l3e))

The ATWINC has much lower power usage, about 12mA for the WINC & 10mA for the ATSAMD21 with auto-

powermanagement on for the WiFi and no power management for the ARM. With manual power management,

you can get the WiFi module to down to ~2mA by putting it to sleep. This is compared to the ESP's ~70mA

average current draw, and whose deep sleep mode requires a WDT reset.

We also found that we could stream more reliably (less 'bursty') with the ATWINC, although altogether the ESP

has higher throughput.

You also dont have to 'yield' all the time to the WiFi core, since its a separate chip. You get full reign of the

processor and timing

Of course, both WiFi-capable Feathers have their strengths and tradeoffs, & we love both equally!