Add a script to compile examples as an automated test suite.

* Added script/boostrap.sh to download the Arduino IDE and MPIDE (for
    chipKIT). Tested in Linux, should work in Cygwin and OS X too.
* Added script/runtests.sh to run "make" in each example project and
    collect the results. The script returns -1 if any fails.
* Moved currently testable examples to a "tests" directory, separate
    from examples that require alternative cores.

34 files changed, 379 insertions, 8 deletions

diff --git a/.gitignore b/.gitignore
index 06cff06..a0d6d59 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *.o
 build-cli
 /.project
+/dependencies
+build-*
diff --git a/README.md b/README.md
index 50785b0..5b24604 100644
--- a/README.md
+++ b/README.md
@@ -212,6 +212,13 @@ Then, the following line must be added to the project Makefile :
         $(CXX_NAME) -c -include Arduino.h   -x c++ $(CXXFLAGS)   $(CPPFLAGS)  -fsyntax-only $(CHK_SOURCES)
 ```
 
+## Test Suite
+
+This project includes a suite of example Makefiles and small Arduino and chipKIT
+programs to assist the developers. Run `script/bootstrap.sh` to attempt to
+automatically install the dependencies (Arduino IDE, MPIDE, etc.). Run
+`script/runtests.sh` to attempt to compile all of the examples.
+
 ### Bare-Arduino–Project
 
 If you are planning on using this makefile in a larger/professional project, you might want to take a look at the [Bare-Arduino–Project](https://github.com/WeAreLeka/Bare-Arduino-Project) framework.
diff --git a/examples/ATtinyBlink/Makefile b/examples/ATtinyBlink/Makefile
index a89de1c..b4e49be 100644
--- a/examples/ATtinyBlink/Makefile
+++ b/examples/ATtinyBlink/Makefile
@@ -1,6 +1,6 @@
 # Arduino Make file. Refer to https://github.com/sudar/Arduino-Makefile
 
-# if you have placed the alternate core in your sketchbook directory, then you can just mention the core name alone. 
+# if you have placed the alternate core in your sketchbook directory, then you can just mention the core name alone.
 ALTERNATE_CORE = attiny
 # If not, you might have to include the full path.
 #ALTERNATE_CORE_PATH = /home/sudar/Dropbox/code/arduino-sketches/hardware/attiny/
diff --git a/examples/README.md b/examples/README.md
index b170cdc..39425b3 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -1,7 +1,11 @@
-This folder contains the list of example Arduino sketches and makefile showing the different usage patterns
+This folder contains the list of example Arduino sketches and makefile showing
+the different usage patterns
+
+- BlinkInAVRC - Shows how to use plain AVR C code
+- ATtinyBlink - Shows how to use different cores like ATtiny
+
+These three examples are a step back, in the "tests" directory.
 
 - Blink - Shows normal usage
 - HelloWorld - Shows how to include Arduino libraries
-- BlinkInAVRC - Shows how to use plain AVR C code
 - BlinkChipKIT - Shows how to use ChipKIT
-- ATtinyBlink - Shows how to use different cores like ATtiny
diff --git a/examples/TinySoftWareSerial/Makefile b/examples/TinySoftWareSerial/Makefile
index 08f918d..991e57e 100644
--- a/examples/TinySoftWareSerial/Makefile
+++ b/examples/TinySoftWareSerial/Makefile
@@ -9,6 +9,7 @@ BOARD_TAG    = attiny85-8
 
 ARDUINO_LIBS = SoftwareSerial
 
+include ../TestSuiteCommon.mk
 include $(ARDMK_DIR)/Arduino.mk
 
 # !!! Important. You have to use make ispload to upload when using ISP programmer
diff --git a/examples/toneMelody/Makefile b/examples/toneMelody/Makefile
deleted file mode 100644
index 3dea6c0..0000000
--- a/examples/toneMelody/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-BOARD_TAG    = uno
-ARDUINO_LIBS =
-
-include ../../Arduino.mk
diff --git a/script/bootstrap.sh b/script/bootstrap.sh
new file mode 100755
index 0000000..083bf5d
--- /dev/null
+++ b/script/bootstrap.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+SCRIPTS_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+pushd $SCRIPTS_DIR/..
+
+source $SCRIPTS_DIR/bootstrap/chipkit.sh
+source $SCRIPTS_DIR/bootstrap/arduino.sh
diff --git a/script/bootstrap/arduino.sh b/script/bootstrap/arduino.sh
new file mode 100644
index 0000000..3c7e9d7
--- /dev/null
+++ b/script/bootstrap/arduino.sh
@@ -0,0 +1,44 @@
+set -e
+BOOTSTRAP_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source $BOOTSTRAP_DIR/common.sh
+
+echo "Installing dependencies for building for the Arduino"
+
+if [ -z "$ARDUINO_DIR" ] || ! test -e $ARDUINO_DIR || [ $OS == "cygwin" ]; then
+
+    echo "Installing Arduino..."
+
+    ARDUINO_BASENAME="arduino-1.0.5"
+    if [ $OS == "cygwin" ]; then
+        ARDUINO_FILE="$ARDUINO_BASENAME-r2-windows".zip
+        EXTRACT_COMMAND="unzip -q"
+    elif [ $OS == "mac" ]; then
+        ARDUINO_FILE="$ARDUINO_BASENAME-macosx".zip
+        EXTRACT_COMMAND="unzip -q"
+    else
+        ARDUINO_FILE="$ARDUINO_BASENAME-linux64".tgz
+        EXTRACT_COMMAND="tar -xzf"
+    fi
+
+    ARDUINO_URL=http://arduino.googlecode.com/files/$ARDUINO_FILE
+
+    _pushd $DEPENDENCIES_FOLDER
+    if ! test -e $ARDUINO_FILE
+    then
+        echo "Downloading Arduino IDE..."
+        download $ARDUINO_URL $ARDUINO_FILE
+    fi
+
+    if ! test -d $ARDUINO_BASENAME
+    then
+        echo "Installing Arduino to local folder..."
+        $EXTRACT_COMMAND $ARDUINO_FILE
+        echo "Arduino installed"
+    fi
+
+    _popd
+
+fi
+
+echo
+echo "${bldgreen}Arduino dependencies installed.$txtrst"
diff --git a/script/bootstrap/chipkit.sh b/script/bootstrap/chipkit.sh
new file mode 100644
index 0000000..efe9615
--- /dev/null
+++ b/script/bootstrap/chipkit.sh
@@ -0,0 +1,61 @@
+set -e
+BOOTSTRAP_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source $BOOTSTRAP_DIR/common.sh
+
+echo "Installing dependencies for building for the chipKIT"
+
+
+if [ -z "$MPIDE_DIR" ] || ! test -e $MPIDE_DIR || [ $OS == "cygwin" ]; then
+
+    echo "Installing MPIDE..."
+
+        if [ $OS == "cygwin" ]; then
+        MPIDE_BASENAME="mpide-0023-windows-20130715"
+        MPIDE_FILE="$MPIDE_BASENAME".zip
+        EXTRACT_COMMAND="unzip -q"
+        if ! command -v unzip >/dev/null 2>&1; then
+            _cygwin_error "unzip"
+        fi
+    elif [ $OS == "mac" ]; then
+        MPIDE_BASENAME=mpide-0023-macosx-20130715
+        MPIDE_FILE="$MPIDE_BASENAME".dmg
+    else
+        MPIDE_BASENAME=mpide-0023-linux64-20130817-test
+        MPIDE_FILE="$MPIDE_BASENAME".tgz
+        EXTRACT_COMMAND="tar -xzf"
+    fi
+
+    MPIDE_URL=http://chipkit.s3.amazonaws.com/builds/$MPIDE_FILE
+
+    _pushd $DEPENDENCIES_FOLDER
+    if ! test -e $MPIDE_FILE
+    then
+        echo "Downloading MPIDE..."
+        download $MPIDE_URL $MPIDE_FILE
+    fi
+
+    if ! test -d $MPIDE_BASENAME
+    then
+        echo "Installing MPIDE to local folder..."
+        if [ $OS == "mac" ]; then
+            hdiutil attach $MPIDE_FILE
+            cp -R /Volumes/Mpide/Mpide.app/Contents/Resources/Java $MPIDE_BASENAME
+            hdiutil detach /Volumes/Mpide
+        else
+            $EXTRACT_COMMAND $MPIDE_FILE
+        fi
+        echo "MPIDE installed"
+    fi
+
+    if [ $OS == "cygwin" ]; then
+        chmod a+x mpide/hardware/pic32/compiler/pic32-tools/bin/*
+        chmod a+x -R mpide/hardware/pic32/compiler/pic32-tools/pic32mx/
+        chmod a+x mpide/*.dll
+        chmod a+x mpide/hardware/tools/avr/bin/*
+    fi
+    _popd
+
+fi
+
+echo
+echo "${bldgreen}chipKIT dependencies installed.$txtrst"
diff --git a/script/bootstrap/common.sh b/script/bootstrap/common.sh
new file mode 100644
index 0000000..695d6b7
--- /dev/null
+++ b/script/bootstrap/common.sh
@@ -0,0 +1,191 @@
+#!/usr/bin/env bash
+
+set -e
+BOOTSTRAP_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+if [ -z $COMMON_SOURCED ]; then
+
+    # TODO this is kind of a hacky way of determining if root is required -
+    # ideally we wouuld set up a little virtualenv in the dependencies folder
+    SUDO_CMD=
+    if command -v sudo >/dev/null 2>&1; then
+        SUDO_CMD="sudo -E"
+
+        if [ -z $CI ] && [ -z $VAGRANT ]; then
+            echo "The bootstrap script needs to install a few packages to your system as an admin, and we will use the 'sudo' command - enter your password to continue"
+            $SUDO_CMD ls > /dev/null
+        fi
+    fi
+
+    KERNEL=`uname`
+    ARCH=`uname -m`
+    if [ ${KERNEL:0:7} == "MINGW32" ]; then
+        OS="windows"
+    elif [ ${KERNEL:0:6} == "CYGWIN" ]; then
+        OS="cygwin"
+    elif [ $KERNEL == "Darwin" ]; then
+        OS="mac"
+    else
+        OS="linux"
+        if ! command -v lsb_release >/dev/null 2>&1; then
+            # Arch Linux
+            if command -v pacman>/dev/null 2>&1; then
+                $SUDO_CMD pacman -S lsb-release
+            fi
+        fi
+
+        DISTRO=`lsb_release -si`
+    fi
+
+
+    die() {
+        echo >&2 "${bldred}$@${txtrst}"
+        exit 1
+    }
+
+    _cygwin_error() {
+        echo
+        echo "${bldred}Missing \"$1\"${txtrst} - run the Cygwin installer again and select the base package set:"
+        echo "    $CYGWIN_PACKAGES"
+        echo "After installing the packages, re-run this bootstrap script."
+        die
+    }
+
+    if ! command -v tput >/dev/null 2>&1; then
+        if [ $OS == "cygwin" ]; then
+            echo "OPTIONAL: Install the \"ncurses\" package in Cygwin to get colored shell output"
+        fi
+    else
+        set +e
+        # These exit with 1 when provisioning in a Vagrant box...?
+        txtrst=$(tput sgr0) # reset
+        bldred=${txtbld}$(tput setaf 1)
+        bldgreen=${txtbld}$(tput setaf 2)
+        set -e
+    fi
+
+
+    _pushd() {
+        pushd $1 > /dev/null
+    }
+
+    _popd() {
+        popd > /dev/null
+    }
+
+    _wait() {
+        if [ -z $CI ] && [ -z $VAGRANT ]; then
+            echo "Press Enter when done"
+            read
+        fi
+    }
+
+    _install() {
+        if [ $OS == "cygwin" ]; then
+            _cygwin_error $1
+        elif [ $OS == "mac" ]; then
+            # brew exists with 1 if it's already installed
+            set +e
+            brew install $1
+            set -e
+        else
+            if [ -z $DISTRO ]; then
+                echo
+                echo "Missing $1 - install it using your distro's package manager or build from source"
+                _wait
+            else
+                if [ $DISTRO == "arch" ]; then
+                    $SUDO_CMD pacman -S $1
+                elif [ $DISTRO == "Ubuntu" ]; then
+                    $SUDO_CMD apt-get update -qq
+                    $SUDO_CMD apt-get install $1 -y
+                else
+                    echo
+                    echo "Missing $1 - install it using your distro's package manager or build from source"
+                    _wait
+                fi
+            fi
+        fi
+    }
+
+    download() {
+        url=$1
+        filename=$2
+        curl $url -L -o $filename
+    }
+
+    if [ `id -u` == 0 ]; then
+        die "Error: running as root - don't use 'sudo' with this script"
+    fi
+
+    if ! command -v unzip >/dev/null 2>&1; then
+        _install "unzip"
+    fi
+
+    if ! command -v curl >/dev/null 2>&1; then
+        if [ $OS == "cygwin" ]; then
+            _cygwin_error "curl"
+        else
+            _install curl
+        fi
+    fi
+
+    echo "Storing all downloaded dependencies in the \"dependencies\" folder"
+
+    DEPENDENCIES_FOLDER="dependencies"
+    mkdir -p $DEPENDENCIES_FOLDER
+
+    if ! command -v make >/dev/null 2>&1; then
+        if [ $OS == "cygwin" ]; then
+            _cygwin_error "make"
+        elif [ $OS == "mac" ]; then
+                die "Missing 'make' - install the Xcode CLI tools"
+        else
+            if [ $DISTRO == "arch" ]; then
+                _install "base-devel"
+            elif [ $DISTRO == "Ubuntu" ]; then
+                _install "build-essential"
+            fi
+        fi
+    fi
+
+    if [ $DISTRO == "Ubuntu" ] && [ $ARCH == "x86_64" ]; then
+        _install "libc6-i386"
+        _install "lib32gcc1"
+    fi
+
+    if ! command -v g++ >/dev/null 2>&1; then
+        if [ $DISTRO == "Ubuntu" ]; then
+            _install "g++"
+        fi
+    fi
+
+    if ! command -v python >/dev/null 2>&1; then
+        echo "Installing Python..."
+        _install "python"
+    fi
+
+    if ! command -v pip >/dev/null 2>&1; then
+        echo "Installing Pip..."
+        if ! command -v easy_install >/dev/null 2>&1; then
+            _install "python-setuptools"
+        fi
+
+        if ! command -v easy_install >/dev/null 2>&1; then
+            die "easy_install not available, can't install pip"
+        fi
+
+        $SUDO_CMD easy_install pip
+    fi
+
+    PIP_SUDO_CMD=
+    if [ -z $VIRTUAL_ENV ]; then
+        # Only use sudo if the user doesn't have an active virtualenv
+        PIP_SUDO_CMD=$SUDO_CMD
+    fi
+
+    $PIP_SUDO_CMD pip install --upgrade setuptools
+    $PIP_SUDO_CMD pip install --src dependencies --pre -Ur $BOOTSTRAP_DIR/pip-requirements.txt
+
+    COMMON_SOURCED=1
+fi
diff --git a/script/bootstrap/pip-requirements.txt b/script/bootstrap/pip-requirements.txt
new file mode 100644
index 0000000..8313187
--- /dev/null
+++ b/script/bootstrap/pip-requirements.txt
@@ -0,0 +1 @@
+pyserial==2.7
diff --git a/script/runtests.sh b/script/runtests.sh
new file mode 100755
index 0000000..ad42f74
--- /dev/null
+++ b/script/runtests.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+failures=()
+
+for dir in tests/*/
+do
+    dir=${dir%*/}
+    example=${dir##*/}
+    pushd $dir
+    echo "Compiling $example..."
+    make_output=`make clean`
+    make_output=`make`
+    if [[ $? -ne 0 ]]; then
+        failures+=("$example")
+        echo "Example $example failed"
+    fi
+    popd
+done
+
+for failure in "${failures[@]}"; do
+    echo "Example $failure failed"
+done
+
+if [[ ${#failures[@]} -eq 0 ]]; then
+    echo "All tests passed."
+else
+    exit 1
+fi
diff --git a/examples/AnalogInOutSerial/AnalogInOutSerial.ino b/tests/AnalogInOutSerial/AnalogInOutSerial.ino
index e142f69..e142f69 100644
--- a/examples/AnalogInOutSerial/AnalogInOutSerial.ino
+++ b/tests/AnalogInOutSerial/AnalogInOutSerial.ino
diff --git a/examples/Fade/Makefile b/tests/AnalogInOutSerial/Makefile
index 3dea6c0..872d069 100644
--- a/examples/Fade/Makefile
+++ b/tests/AnalogInOutSerial/Makefile
@@ -1,4 +1,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS =
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/examples/Blink/Blink.ino b/tests/Blink/Blink.ino
index 1953c39..1953c39 100644
--- a/examples/Blink/Blink.ino
+++ b/tests/Blink/Blink.ino
diff --git a/examples/Blink/Makefile b/tests/Blink/Makefile
index 7678e9b..d41effa 100644
--- a/examples/Blink/Makefile
+++ b/tests/Blink/Makefile
@@ -1,5 +1,6 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS =
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
 
diff --git a/examples/BlinkChipKIT/BlinkChipKIT.pde b/tests/BlinkChipKIT/BlinkChipKIT.pde
index 1953c39..1953c39 100644
--- a/examples/BlinkChipKIT/BlinkChipKIT.pde
+++ b/tests/BlinkChipKIT/BlinkChipKIT.pde
diff --git a/examples/BlinkChipKIT/Makefile b/tests/BlinkChipKIT/Makefile
index 87a9f7d..bec2794 100644
--- a/examples/BlinkChipKIT/Makefile
+++ b/tests/BlinkChipKIT/Makefile
@@ -1,5 +1,6 @@
 BOARD_TAG    = mega_pic32
 ARDUINO_LIBS =
 
+include ../TestSuiteCommon.mk
 include ../../chipKIT.mk
 
diff --git a/examples/BlinkInAVRC/Makefile b/tests/BlinkInAVRC/Makefile
index 04049bb..9080b24 100644
--- a/examples/BlinkInAVRC/Makefile
+++ b/tests/BlinkInAVRC/Makefile
@@ -11,6 +11,7 @@ F_CPU = 8000000L
 ISP_PROG   = stk500v1
 AVRDUDE_ISP_BAUDRATE = 19200
 
+include ../TestSuiteCommon.mk
 include $(ARDMK_DIR)/Arduino.mk
 
 # !!! Important. You have to use make ispload to upload when using ISP programmer
diff --git a/examples/BlinkInAVRC/blink.c b/tests/BlinkInAVRC/blink.c
index d8b7c8f..d8b7c8f 100644
--- a/examples/BlinkInAVRC/blink.c
+++ b/tests/BlinkInAVRC/blink.c
diff --git a/examples/BlinkWithoutDelay/BlinkWithoutDelay.ino b/tests/BlinkWithoutDelay/BlinkWithoutDelay.ino
index 0143571..0143571 100644
--- a/examples/BlinkWithoutDelay/BlinkWithoutDelay.ino
+++ b/tests/BlinkWithoutDelay/BlinkWithoutDelay.ino
diff --git a/examples/AnalogInOutSerial/Makefile b/tests/BlinkWithoutDelay/Makefile
index 3dea6c0..872d069 100644
--- a/examples/AnalogInOutSerial/Makefile
+++ b/tests/BlinkWithoutDelay/Makefile
@@ -1,4 +1,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS =
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/examples/Fade/Fade.ino b/tests/Fade/Fade.ino
index b47bf43..b47bf43 100644
--- a/examples/Fade/Fade.ino
+++ b/tests/Fade/Fade.ino
diff --git a/examples/BlinkWithoutDelay/Makefile b/tests/Fade/Makefile
index 3dea6c0..872d069 100644
--- a/examples/BlinkWithoutDelay/Makefile
+++ b/tests/Fade/Makefile
@@ -1,4 +1,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS =
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/examples/HelloWorld/HelloWorld.ino b/tests/HelloWorld/HelloWorld.ino
index e99957d..e99957d 100644
--- a/examples/HelloWorld/HelloWorld.ino
+++ b/tests/HelloWorld/HelloWorld.ino
diff --git a/examples/HelloWorld/Makefile b/tests/HelloWorld/Makefile
index fb94fdd..0af2ed4 100644
--- a/examples/HelloWorld/Makefile
+++ b/tests/HelloWorld/Makefile
@@ -1,4 +1,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS = LiquidCrystal
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/tests/TestSuiteCommon.mk b/tests/TestSuiteCommon.mk
new file mode 100644
index 0000000..5fa4f50
--- /dev/null
+++ b/tests/TestSuiteCommon.mk
@@ -0,0 +1,13 @@
+ARDMK_DIR=../../
+DEPENDENCIES_FOLDER = ../../dependencies
+DEPENDENCIES_MPIDE_DIR = $(DEPENDENCIES_FOLDER)/mpide-0023-linux64-20130817-test
+
+ifeq ($(MPIDE_DIR),)
+	MPIDE_DIR = $(DEPENDENCIES_MPIDE_DIR)
+endif
+
+DEPENDENCIES_ARDUINO_DIR = $(DEPENDENCIES_FOLDER)/arduino-1.0.5
+
+ifeq ($(ARDUINO_DIR),)
+	ARDUINO_DIR = $(DEPENDENCIES_ARDUINO_DIR)
+endif
diff --git a/examples/WebServer/Makefile b/tests/WebServer/Makefile
index 51b9ac2..5fbefae 100644
--- a/examples/WebServer/Makefile
+++ b/tests/WebServer/Makefile
@@ -3,4 +3,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS = Ethernet SPI
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/examples/WebServer/WebServer.ino b/tests/WebServer/WebServer.ino
index fb2a1b9..fb2a1b9 100644
--- a/examples/WebServer/WebServer.ino
+++ b/tests/WebServer/WebServer.ino
diff --git a/examples/master_reader/Makefile b/tests/master_reader/Makefile
index 3030deb..8a42a8e 100644
--- a/examples/master_reader/Makefile
+++ b/tests/master_reader/Makefile
@@ -3,4 +3,5 @@
 BOARD_TAG    = uno
 ARDUINO_LIBS = Wire
 
+include ../TestSuiteCommon.mk
 include ../../Arduino.mk
diff --git a/examples/master_reader/master_reader.ino b/tests/master_reader/master_reader.ino
index 4124d7d..4124d7d 100644
--- a/examples/master_reader/master_reader.ino
+++ b/tests/master_reader/master_reader.ino
diff --git a/tests/toneMelody/Makefile b/tests/toneMelody/Makefile
new file mode 100644
index 0000000..872d069
--- /dev/null
+++ b/tests/toneMelody/Makefile
@@ -0,0 +1,5 @@
+BOARD_TAG    = uno
+ARDUINO_LIBS =
+
+include ../TestSuiteCommon.mk
+include ../../Arduino.mk
diff --git a/examples/toneMelody/pitches.h b/tests/toneMelody/pitches.h
index 55c7d54..55c7d54 100644
--- a/examples/toneMelody/pitches.h
+++ b/tests/toneMelody/pitches.h
diff --git a/examples/toneMelody/toneMelody.ino b/tests/toneMelody/toneMelody.ino
index 8593ab7..8593ab7 100644
--- a/examples/toneMelody/toneMelody.ino
+++ b/tests/toneMelody/toneMelody.ino