remove dependency on 3rd party LinkedList lib #54

	# Build examples with Platformio
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
	# https://docs.platformio.org/en/latest/integration/ci/github-actions.html

	name: PlatformIO CI

	on:
	push:
	# branches: [ main ]
	paths:
	- '**.ino'
	- '**.cpp'
	- '**.hpp'
	- '**.h'
	- '**.c'
	- '**.ini'
	- '**.yml'
	pull_request:
	# branches: [ main ]
	paths:
	- '**.ino'
	- '**.cpp'
	- '**.hpp'
	- '**.h'
	- '**.c'
	- '**.ini'
	- '**.yml'

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	max-parallel: 2
	matrix:
	example:
	- "examples/01_SinglePZEM004"
	- "examples/02_SinglePZEM003"
	- "examples/03_MultiplePZEM004"
	- "examples/04_MixedPool"
	- "examples/05_TimeSeries"
	- "examples/pzem_cli"

	steps:
	- uses: actions/checkout@v4
	- name: PIO Cache
	uses: actions/cache@v4
	with:
	path: \|
	~/.cache/pip
	~/.platformio/.cache
	key: ${{ runner.os }}-pio
	#restore-keys: \|
	# ${{ runner.os }}-pio
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'
	- name: Install Platformio
	run: \|
	python -m pip install --upgrade pip
	pip install --upgrade platformio
	#platformio pkg update
	- name: PIO build
	env:
	PLATFORMIO_CI_SRC: ${{ matrix.example }}
	run: \|
	cd ${{ matrix.example }} && platformio run -e example -e debug
	#pio ci -c ${{ matrix.example }}/platformio.ini

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