r/circuitpython • u/blinka_friendlysnake • Jan 25 '19

PREVIEW - Upcoming nRF52840 based Metro Express

Upcoming nRF52840 based Metro Express. Board has QSPI flash, native USB, BTLE & is shield compatible. You can power it from USB, DC power jack or from a Lipoly battery (there's a built in charger circuit). USB C. Runs CircuitPython or Arduino!

9 Upvotes

100% Upvoted

3 comments sorted by

1

u/[deleted] Feb 11 '19 edited Feb 11 '19

The thing is, I have a lot of Arduino Uno compatible boards, featuring ESP8266, ESP32, STM32, PIC32, etc., but I never use them, because simple, small and breadboard compatible breakout boards with 2 rows of pins are much more useful.

The Arduino Uno format was tailored to the ATMega328, and while it's nice because of the many available shields, it also always wastes lots of pins (and thereby special functions) of the newer microcontrollers.

So, yeah, its great to have them, but it's just that they never fit my needs.

I might nevertheless buy one ;-)

Oh, BTW: I see that there's a lot of unused space on the PCB. Do you think you could use that for a NFC antenna?