Using Serial1 with sparkfun redboard artemis

[maxgerhardt]

@jacobrask15

platform = atmelavr
board = sparkfun_redboard

This is not the Artemis, which is nRF52 based. It’s not Atmel AVR based.

For Artemis support, see

Planned support for Sparkfun Artemis modules?

This is already tracked in Sparkfun Edge Cortex M4 MCU Board Support · Issue #2709 · platformio/platformio-core · GitHub, though there haven’t been many developments since. The Sparkfun Artemis under the hood is just an ARM Cortex-M4 based Microcontroller called the “ambiq micro Apollo3 Blue” with an Arduino Core and also a vendor SDK (“AmbiqSuite SDK”). An experimental version seems to have been created by a user at GitHub - nigelb/platform-apollo3blue: AmbiqMicro Apollo 3 Blue: development pl…