diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..df83677
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,24 @@
+name: PlatformIO CI
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cache/pip
+            ~/.platformio/.cache
+          key: ${{ runner.os }}-pio
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.9'
+      - name: Install PlatformIO Core
+        run: pip install --upgrade platformio
+
+      - name: Build PlatformIO Project
+        run: pio run
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0d9d673
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,35 @@
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+.pio
+.cache
diff --git a/.scripts/commands.sh b/.scripts/commands.sh
new file mode 100755
index 0000000..e16838f
--- /dev/null
+++ b/.scripts/commands.sh
@@ -0,0 +1,207 @@
+#! /bin/bash
+
+# A helper script to help build and upload firmware projects based on PlatformIO
+
+function list_environments(){
+  pio project config|grep ^env:|sed "s,env:,,"
+}
+
+
+
+function generate_vscode_tasks() {
+  # Lists all environments, and creates a vscode build and upload tasks for each environment
+  # This is useful for creating a vscode task.json file
+
+  for env in $(list_environments); do
+    echo "
+    // Upload ${env}
+    {
+      \"label\": \"upload ${env}\",
+      \"type\": \"shell\",
+      \"command\": \"pio run -t upload -e ${env}\",
+    },
+    // Build ${env}
+    {
+      \"label\": \"build ${env}\",
+      \"type\": \"shell\",
+      \"command\": \"pio run -e ${env}\",
+    },"
+done
+}
+
+function update_vscode_tasks_json () {
+  # Updates the vscode tasks.json file with the tasks generated by generate_vscode_tasks
+
+  if [ ! -f .vscode/tasks.json ]; then
+    echo "tasks.json file not found. Please run this command from the root of the project"
+    exit 1
+  fi
+
+  # Backup the tasks.json file
+  cp .vscode/tasks.json .vscode/tasks.json.bak
+
+  # Create the top part
+  echo ' {
+  // This file is auto generated by the commands.sh script. Any edits will be overwritten automatically.
+  "version": "2.0.0",
+  "tasks": [
+
+    // Build all
+    {
+      "label": "Build all",
+      "type": "shell",
+      "command": "pio run",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      }
+    },
+
+    // Make compiledb to allow LSP to work
+    {
+      "label": "Build compiledb database for LSP / clangd",
+      "type": "shell",
+      "command": "pio run -t compiledb",
+    },
+  ' > .vscode/tasks.json
+
+
+
+  # Generate the tasks
+  generate_vscode_tasks >> .vscode/tasks.json
+
+  # Close the tasks.json file
+  echo "] }" >> .vscode/tasks.json
+
+  echo "tasks.json updated successfully"
+}
+
+function print_help() {
+  echo "Usage: $0 <command>"
+  echo "Commands:"
+  echo "  list"
+  echo "  show"
+  echo "  build-all"
+  echo "  build <environment>"
+  echo "  upload <environment>"
+  echo "  add_board"
+  echo "  fzf_boards"
+  echo "  update_vscode_tasks"
+  exit 1
+}
+
+function build() {
+  if [ $# -ne 1 ]; then
+    echo "Usage: $0 build <environment>"
+    echo "See list of available environments by running $0 list"
+    exit 1
+  fi
+
+  pio run -e $1
+}
+
+function build_all() {
+  pio run
+}
+
+function upload() {
+  if [ $# -ne 1 ]; then
+    echo "Usage: $0 upload <environment>"
+    echo "See list of available environments by running $0 list"
+    exit 1
+  fi
+
+  pio run -e $1 --target upload
+}
+
+function show() {
+  pio project --list-targets
+}
+
+function fzf_boards() {
+  # Fuzzy search boards and return the board id
+
+  # Check if fzf installed
+  if ! command -v fzf &> /dev/null; then
+    echo "fzf is not installed. Please install fzf to use this feature."
+    exit 1
+  fi
+
+  pio boards --json-output | jq -r '.[] | "id:" + .id + ", name:" + .name + ", platform:" + .platform' | fzf
+
+}
+
+# Gets new environemnt using fzf and adds it to the platformio.ini file
+function add_new_board() {
+  new_env=$(fzf_boards)
+  if [ -z "$new_env" ]; then
+    echo "No board selected. Exiting"
+    exit 1
+  fi
+  echo "Adding new environment $new_env"
+
+  # Get the board id
+  board_id=$(echo $new_env | awk -F',' '{print $1}' | awk -F':' '{print $2}' | xargs)
+  board_name=$(echo $new_env | awk -F',' '{print $2}' | awk -F':' '{print $2}' | xargs)
+  board_platform=$(echo $new_env | awk -F',' '{print $3}' | awk -F':' '{print $2}' | xargs)
+
+  # Add the new environment to the platformio.ini file
+  echo "Adding new environment to platformio.ini"
+  echo "
+; $board_name
+[env:$board_id]
+platform = $board_platform
+board = $board_id
+; Additional build flags for $board_name here
+build_flags =
+  \${env.build_flags}
+; Additional libraries for $board_name here
+lib_deps =
+  \${env.lib_deps}" >> platformio.ini
+
+  update_vscode_tasks_json
+}
+
+function main() {
+  # parse the command line arguments
+  if [ $# -eq 0 ]; then
+    print_help
+    exit 1
+  fi
+
+  case $1 in
+    list)
+      list_environments
+      ;;
+    show)
+      show
+      ;;
+    upload)
+      shift
+      upload $@
+      ;;
+    build-all)
+      build_all
+      ;;
+    build)
+      shift
+      build $@
+      ;;
+
+    add_board)
+      add_new_board
+      ;;
+    fzf_boards)
+      fzf_boards
+      ;;
+    update_vscode_tasks)
+      update_vscode_tasks_json
+      ;;
+    *)
+      print_help
+      exit 1
+      ;;
+  esac
+}
+
+main $@
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 0000000..da229aa
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,141 @@
+ {
+  // This file is auto generated by the commands.sh script. Any edits will be overwritten automatically.
+  "version": "2.0.0",
+  "tasks": [
+
+    // Build all
+    {
+      "label": "Build all",
+      "type": "shell",
+      "command": "pio run",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      }
+    },
+
+    // Make compiledb to allow LSP to work
+    {
+      "label": "Build compiledb database for LSP / clangd",
+      "type": "shell",
+      "command": "pio run -t compiledb",
+    },
+  
+
+    // Upload raspberrypi-pico
+    {
+      "label": "upload raspberrypi-pico",
+      "type": "shell",
+      "command": "pio run -t upload -e raspberrypi-pico",
+    },
+    // Build raspberrypi-pico
+    {
+      "label": "build raspberrypi-pico",
+      "type": "shell",
+      "command": "pio run -e raspberrypi-pico",
+    },
+
+    // Upload raspberrypi-picow
+    {
+      "label": "upload raspberrypi-picow",
+      "type": "shell",
+      "command": "pio run -t upload -e raspberrypi-picow",
+    },
+    // Build raspberrypi-picow
+    {
+      "label": "build raspberrypi-picow",
+      "type": "shell",
+      "command": "pio run -e raspberrypi-picow",
+    },
+
+    // Upload esp32dev
+    {
+      "label": "upload esp32dev",
+      "type": "shell",
+      "command": "pio run -t upload -e esp32dev",
+    },
+    // Build esp32dev
+    {
+      "label": "build esp32dev",
+      "type": "shell",
+      "command": "pio run -e esp32dev",
+    },
+
+    // Upload nodemcuv2-esp8266
+    {
+      "label": "upload nodemcuv2-esp8266",
+      "type": "shell",
+      "command": "pio run -t upload -e nodemcuv2-esp8266",
+    },
+    // Build nodemcuv2-esp8266
+    {
+      "label": "build nodemcuv2-esp8266",
+      "type": "shell",
+      "command": "pio run -e nodemcuv2-esp8266",
+    },
+
+    // Upload teensy41
+    {
+      "label": "upload teensy41",
+      "type": "shell",
+      "command": "pio run -t upload -e teensy41",
+    },
+    // Build teensy41
+    {
+      "label": "build teensy41",
+      "type": "shell",
+      "command": "pio run -e teensy41",
+    },
+
+    // Upload teensy40
+    {
+      "label": "upload teensy40",
+      "type": "shell",
+      "command": "pio run -t upload -e teensy40",
+    },
+    // Build teensy40
+    {
+      "label": "build teensy40",
+      "type": "shell",
+      "command": "pio run -e teensy40",
+    },
+
+    // Upload teensylc
+    {
+      "label": "upload teensylc",
+      "type": "shell",
+      "command": "pio run -t upload -e teensylc",
+    },
+    // Build teensylc
+    {
+      "label": "build teensylc",
+      "type": "shell",
+      "command": "pio run -e teensylc",
+    },
+
+    // Upload adafruit_feather_esp32s2
+    {
+      "label": "upload adafruit_feather_esp32s2",
+      "type": "shell",
+      "command": "pio run -t upload -e adafruit_feather_esp32s2",
+    },
+    // Build adafruit_feather_esp32s2
+    {
+      "label": "build adafruit_feather_esp32s2",
+      "type": "shell",
+      "command": "pio run -e adafruit_feather_esp32s2",
+    },
+
+    // Upload featheresp32
+    {
+      "label": "upload featheresp32",
+      "type": "shell",
+      "command": "pio run -t upload -e featheresp32",
+    },
+    // Build featheresp32
+    {
+      "label": "build featheresp32",
+      "type": "shell",
+      "command": "pio run -e featheresp32",
+    },
+] }
diff --git a/.vscode/tasks.json.bak b/.vscode/tasks.json.bak
new file mode 100644
index 0000000..179e499
--- /dev/null
+++ b/.vscode/tasks.json.bak
@@ -0,0 +1,128 @@
+ {
+  // This file is auto generated by the commands.sh script. Any edits will be overwritten automatically.
+  "version": "2.0.0",
+  "tasks": [
+
+    // Build all
+    {
+      "label": "Build all",
+      "type": "shell",
+      "command": "pio run",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      }
+    },
+
+    // Make compiledb to allow LSP to work
+    {
+      "label": "Build compiledb database for LSP / clangd",
+      "type": "shell",
+      "command": "pio run -t compiledb",
+    },
+  
+
+    // Upload raspberrypi-pico
+    {
+      "label": "upload raspberrypi-pico",
+      "type": "shell",
+      "command": "pio run -t upload -e raspberrypi-pico",
+    },
+    // Build raspberrypi-pico
+    {
+      "label": "build raspberrypi-pico",
+      "type": "shell",
+      "command": "pio run -e raspberrypi-pico",
+    },
+
+    // Upload raspberrypi-picow
+    {
+      "label": "upload raspberrypi-picow",
+      "type": "shell",
+      "command": "pio run -t upload -e raspberrypi-picow",
+    },
+    // Build raspberrypi-picow
+    {
+      "label": "build raspberrypi-picow",
+      "type": "shell",
+      "command": "pio run -e raspberrypi-picow",
+    },
+
+    // Upload esp32dev
+    {
+      "label": "upload esp32dev",
+      "type": "shell",
+      "command": "pio run -t upload -e esp32dev",
+    },
+    // Build esp32dev
+    {
+      "label": "build esp32dev",
+      "type": "shell",
+      "command": "pio run -e esp32dev",
+    },
+
+    // Upload nodemcuv2-esp8266
+    {
+      "label": "upload nodemcuv2-esp8266",
+      "type": "shell",
+      "command": "pio run -t upload -e nodemcuv2-esp8266",
+    },
+    // Build nodemcuv2-esp8266
+    {
+      "label": "build nodemcuv2-esp8266",
+      "type": "shell",
+      "command": "pio run -e nodemcuv2-esp8266",
+    },
+
+    // Upload teensy41
+    {
+      "label": "upload teensy41",
+      "type": "shell",
+      "command": "pio run -t upload -e teensy41",
+    },
+    // Build teensy41
+    {
+      "label": "build teensy41",
+      "type": "shell",
+      "command": "pio run -e teensy41",
+    },
+
+    // Upload teensy40
+    {
+      "label": "upload teensy40",
+      "type": "shell",
+      "command": "pio run -t upload -e teensy40",
+    },
+    // Build teensy40
+    {
+      "label": "build teensy40",
+      "type": "shell",
+      "command": "pio run -e teensy40",
+    },
+
+    // Upload teensylc
+    {
+      "label": "upload teensylc",
+      "type": "shell",
+      "command": "pio run -t upload -e teensylc",
+    },
+    // Build teensylc
+    {
+      "label": "build teensylc",
+      "type": "shell",
+      "command": "pio run -e teensylc",
+    },
+
+    // Upload adafruit_feather_esp32s2
+    {
+      "label": "upload adafruit_feather_esp32s2",
+      "type": "shell",
+      "command": "pio run -t upload -e adafruit_feather_esp32s2",
+    },
+    // Build adafruit_feather_esp32s2
+    {
+      "label": "build adafruit_feather_esp32s2",
+      "type": "shell",
+      "command": "pio run -e adafruit_feather_esp32s2",
+    },
+] }
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..36b89f4
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Mads Kjeldgaard
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8401545
--- /dev/null
+++ b/README.md
@@ -0,0 +1,75 @@
+[![PlatformIO CI](https://github.com/madskjeldgaard/platformio-arduino-template/actions/workflows/build.yml/badge.svg)](https://github.com/madskjeldgaard/platformio-arduino-template/actions/workflows/build.yml)
+
+# The ⚡ULTIMATE⚡ Arduino starter template for Platformio 🐩
+
+This template sets up a nice skeleton to create a project for an arduino-supported microcontroller board using [platformio](https://platformio.org/).
+
+It has a lot of common things set up for most common boards used in the art/music/maker world, including a few optimizations and weird fixes. 
+
+It includes suggestions for libraries to use so you don't have to dig around too much for the common stuff. Just uncomment in the platformio.ini file and recompile.
+
+## Features
+
+- 🐩 Platformio-based – easy to compile and upload, gets dependencies automatically, also easy to extend with new boards
+- 🐩 Includes a lot of common libraries. Just comment/uncomment in [platformio.ini](platformio.ini) to your project's liking.
+- 🐩 Set up for C++17, allowing a lot of modern C++ tricks.
+- 🐩 A helper script is included in [.scripts/commands.sh](.scripts/commands.sh) to make tedious processes simpler.
+- 🐩 VSCode tasks are included making building easy in VSCode and in NeoVim (using the Overseer plugin)
+- 🐩 A Github Action which runs every time you push code to test if your firmware still compiles.
+
+## Supported boards
+
+- ✅ Raspberry Pi Pico
+- ✅ Raspberry Pi PicoW
+- ✅ Teensy 4.1
+- ✅ Teensy 4.0
+- ✅ Teensy LC
+- ✅ NodeMCUV2 ESP8266 
+- ✅ ESP32 dev boards
+- ✅ Adafruit Feather ESP32
+- ✅ Adafruit Feather ESP32 S2
+
+... And it's very easy to add more boards:
+
+### Adding new boards
+
+The included script has a command to fuzzy search through available boards and automatically insert it into `platformio.ini` and auto update the vscode tasks as well.
+ 
+Add new board using this command:
+```bash
+.scripts/commands.sh add_board
+```
+
+Then open `platformio.ini` and make any additional adjustments.
+
+## Usage
+
+### Compiling and uploading
+
+To compile and upload your sketch, simply run this command, adjusted to one of the supported boards, eg for Teensy 4.0:
+
+```bash
+.scripts/commands.sh build teensy40
+```
+
+Or to build and then upload in one command:
+```bash
+.scripts/commands.sh upload teensy40
+```
+
+Finally, the project includes vscode tasks, which are the recommended way of running these commands. Either using vscode as an editor, or in neovim using the [overseer.nvim](https://github.com/stevearc/overseer.nvim) for NeoVim.
+
+### Installing dependencies
+
+You need to have platformio installed to make use of this.
+
+Install it on MacOS by running homebrew:
+
+```bash
+brew install platformio
+```
+If you want to use all the helper scripts' features for adding new boards to your project, you also need `fzf` and `jq`:
+
+```bash
+brew install fzf jq
+```
diff --git a/include/README b/include/README
new file mode 100644
index 0000000..194dcd4
--- /dev/null
+++ b/include/README
@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
diff --git a/lib/README b/lib/README
new file mode 100644
index 0000000..2593a33
--- /dev/null
+++ b/lib/README
@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..fda7bb1
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,150 @@
+; The configuration file for PlatformIO
+;
+; This file is setup with a lot of suggestions for libraries etc.
+;
+; You can delete them as you wish :)
+[env]
+framework = arduino
+
+; Use C++ version 17
+build_unflags = -std=gnu++11
+build_flags = -std=gnu++17 -fconcepts
+
+# Common global libraries. Uncomment any of these to include them in the build.
+lib_deps =
+  # USB support
+  # Adafruit TinyUSB Library
+
+  # MIDI communication – send MIDI messages over USB or physical MIDI ports
+  # https://github.com/FortySevenEffects/arduino_midi_library
+
+  # OSC communication – senc control messages over the network
+  # cnmat/OSC
+
+  # Smooth reading of analog signals, eg potentiometers, analog sensors, etc.
+  # dxinteractive/ResponsiveAnalogRead
+
+  # Debounce buttons – removes noise from button presses
+  # thomasfredericks/Bounce2
+
+  # SPI
+  SPI
+
+  # I2C
+  #Wire
+
+  # DNSServer
+  # DNSServer
+
+  # Send commands to this board over serial
+  # ppedro74/SerialCommands
+
+  # Schedule tasks, timers, etc.
+  # arkhipenko/TaskScheduler
+
+[env:raspberrypi-pico]
+; The Raspberry Pi Pico
+; Link: https://www.raspberrypi.com/documentation/microcontrollers/raspberry-pi-pico.html
+; For more information about the platformio support:
+; https://arduino-pico.readthedocs.io/en/latest/platformio.html
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board_build.core = earlephilhower
+board = pico
+board_build.mcu = rp2040
+board_build.f_cpu = 133000000L
+upload_protocol = picotool
+; in reference to a board = pico config (2MB flash)
+; Flash Size: 2MB (Sketch: 1MB, FS:1MB)
+; board_build.filesystem_size = 1m
+; Flash Size: 2MB (No FS)
+; board_build.filesystem_size = 0m
+; Flash Size: 2MB (Sketch: 0.5MB, FS:1.5MB)
+; board_build.filesystem_size = 1.5m
+
+; Extend build flags from the global section to enable TinyUSB support
+build_flags = ${env.build_flags} -DUSE_TINYUSB
+lib_deps =
+  ${env.lib_deps}
+
+  # USB support
+  Adafruit TinyUSB Library
+
+[env:raspberrypi-picow]
+; Extends the above to use picow instead of pico board
+extends = env:raspberrypi-pico
+; BTC and BLE
+build_flags = ${env.build_flags} -DUSE_TINYUSB -DPIO_FRAMEWORK_ARDUINO_ENABLE_BLUETOOTH
+lib_deps =
+  ${env.lib_deps}
+
+  # USB support
+  Adafruit TinyUSB Library
+
+  # WIFI support
+  # WiFi
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+
+[env:nodemcuv2-esp8266]
+; The NodeMCU v3 board based on the ESP8266
+; Commonly found on Ebay, Aliexpress, etc.
+
+# build_flags = ${env.build_flags}
+platform = espressif8266
+board = nodemcuv2
+lib_deps =
+  ${env.lib_deps}
+
+  # Enable WIFI on ESP8266
+  # ESP8266WiFi
+
+  # Webserver on ESP8266
+  # ESP8266WebServer
+
+  # WIFI Manager
+  # https://github.com/tzapu/WiFiManager
+
+[env:teensy41]
+platform = teensy
+board = teensy41
+build_flags = ${env.build_flags} -DUSB_MIDI_SERIAL
+
+[env:teensy40]
+platform = teensy
+board = teensy40
+build_flags = ${env.build_flags} -DUSB_MIDI_SERIAL
+
+; Teensy LC
+[env:teensylc]
+platform = teensy
+board = teensylc
+; Additional build flags for Teensy LC here
+build_flags =
+  ${env.build_flags}
+; Additional libraries for Teensy LC here
+lib_deps =
+  ${env.lib_deps}
+
+; Adafruit Feather ESP32-S2
+[env:adafruit_feather_esp32s2]
+platform = espressif32
+board = adafruit_feather_esp32s2
+; Additional build flags for Adafruit Feather ESP32-S2 here
+build_flags =
+  ${env.build_flags}
+; Additional libraries for Adafruit Feather ESP32-S2 here
+lib_deps =
+  ${env.lib_deps}
+
+; Adafruit ESP32 Feather
+[env:featheresp32]
+platform = espressif32
+board = featheresp32
+; Additional build flags for Adafruit ESP32 Feather here
+build_flags =
+  ${env.build_flags}
+; Additional libraries for Adafruit ESP32 Feather here
+lib_deps =
+  ${env.lib_deps}
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..3c6211a
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,11 @@
+#include <Arduino.h>
+
+void setup() {
+  // Setup here
+  Serial.begin(115200);
+  // Serial.println("Hello World!");
+}
+
+void loop() {
+  // Loop code here
+}
diff --git a/test/README b/test/README
new file mode 100644
index 0000000..9b1e87b
--- /dev/null
+++ b/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html