Comes fully assembled and tested, pre-programmed with ESP32 SPI WiFi co-processor firmware that you
can use in CircuitPython to use this into WiFi co-processsor (https://adafru.it/Evl). We also include some
header so you can solder it in and plug right into your Arduino-compatible, but you can also pick up a set
of stacking headers to stack above/below your board.
We've tested this with all our Metros and it should work just fine with them except the Metro M4
Airlifts (https://adafru.it/F6o) (because they already have WiFi!). For use in Arduino , the '328 and '32u4 you
can do basic connectivity and data transfer but they do not have a lot of RAM so we don't recommend
them - use the Metro M0, M4 or similar, for best results! For CircuitPython use, a Metro M4 works best -
the M0 series does not have enough RAM in CircuitPython.
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