fix: better handle system real time messages #51

	name: PlatformIO

	on:
	push:
	branches: [master]
	pull_request:
	branches: [ master ]

	jobs:
	platformio:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	example:
	- AltPinSerial
	- Basic_IO
	- Bench
	- Callbacks
	- Chaining
	- DualMerger
	- ErrorCallback
	- Input
	- RPN_NRPN
	- SimpleSynth
	- CustomBaudRate
	board:
	- uno
	- due
	- zero
	- leonardo
	- micro
	- nanoatmega328
	- megaatmega2560
	- teensy2
	- teensy30
	- teensy31
	- teensylc
	steps:
	- uses: actions/checkout@v2
	- name: Cache pip
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: ${{ runner.os }}-pip-
	- name: Cache PlatformIO
	uses: actions/cache@v2
	with:
	path: ~/.platformio
	key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
	- name: Set up Python
	uses: actions/setup-python@v2
	- name: Install PlatformIO
	run: \|
	python -m pip install --upgrade pip
	pip install --upgrade platformio
	pip install "click!=8.0.2" # See platformio/platformio-core#4078
	- name: Run PlatformIO
	run: pio ci --lib="." --board="${{matrix.board}}"
	env:
	PLATFORMIO_CI_SRC: examples/${{ matrix.example }}

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