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273 lines
8.1 KiB
273 lines
8.1 KiB
#!/bin/bash
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# INSTALLER SCRIPT FOR ADAFRUIT SPECTRO PROJECT
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if [ $(id -u) -ne 0 ]; then
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echo "Installer must be run as root."
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echo "Try 'sudo bash $0'"
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exit 1
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fi
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clear
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echo "This script installs software for the Adafruit"
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echo "Spectro project for Raspberry Pi."
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echo "Steps include:"
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echo "- Update package index files (apt-get update)"
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echo "- Install prerequisite software"
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echo "- Install Spectro software"
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echo "- Configure hardware and boot options"
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echo "Run time ~10 minutes."
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echo
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echo "EXISTING INSTALLATION, IF ANY, WILL BE OVERWRITTEN."
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echo "If you've edited any Spectro-related files, cancel"
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echo "the installation and back up those files first."
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echo
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echo -n "CONTINUE? [y/N] "
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read
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if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
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echo "Canceled."
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exit 0
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fi
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# FEATURE PROMPTS ----------------------------------------------------------
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# Installation doesn't begin until after all user input is taken.
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MATRIX_SIZE=0
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SLOWDOWN_GPIO=0
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ENABLE_MIC=0
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ENABLE_ACCEL=0
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HDMI_SIZE=0
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OPTION_NAMES=(NO YES)
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MATRIX_WIDTHS=(64 32)
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MATRIX_HEIGHTS=(32 16)
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SIZE_OPTS=( \
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"${MATRIX_WIDTHS[0]} x ${MATRIX_HEIGHTS[0]}" \
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"${MATRIX_WIDTHS[1]} x ${MATRIX_HEIGHTS[1]}" \
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)
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SLOWDOWN_OPTS=( \
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"0" \
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"1" \
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"2" \
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"3" \
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"4" \
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)
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HDMI_OPTS=( \
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"640x480" \
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"320x240" \
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)
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# Given a list of strings representing options, display each option
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# preceded by a number (1 to N), display a prompt, check input until
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# a valid number within the selection range is entered.
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selectN() {
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args=("${@}")
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# If first item in list is the literal number '0', make the list
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# indexed from 0 rather than 1. This is to avoid confusion when
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# entering the GPIO slowdown setting (e.g. entering '1' for a
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# value of '0' is awkward). In all other cases, list is indexed
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# from 1 as this is more human.
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if [[ ${args[0]} = "0" ]]; then
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OFFSET=0
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else
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OFFSET=1
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fi
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for ((i=0; i<$#; i++)); do
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echo $((i+$OFFSET)). ${args[$i]}
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done
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echo
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REPLY=""
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let LAST=$#+$OFFSET-1
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while :
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do
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echo -n "SELECT $OFFSET-$LAST: "
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read
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if [[ $REPLY -ge $OFFSET ]] && [[ $REPLY -le $LAST ]]; then
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let RESULT=$REPLY-$OFFSET
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return $RESULT
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fi
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done
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}
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echo
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echo "What size LED matrix are you using with Spectro?"
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selectN "${SIZE_OPTS[@]}"
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MATRIX_SIZE=$?
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echo
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echo "Faster Pi boards require dialing back GPIO speed"
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echo "to work with the LED matrix. For Raspberry Pi 4,"
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echo "this usually means the max '4' slowdown setting."
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echo "For Pi 2 or 3, try the '1' or '2' settings. There"
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echo "is no hard-set rule to this, it can vary with"
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echo "matrix and cabling as well. If the Spectro display"
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echo "is glitchy, just re-run this installer, selecting"
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echo "a higher setting until you find a stable value."
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echo "GPIO slowdown setting:"
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selectN "${SLOWDOWN_OPTS[@]}"
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SLOWDOWN_GPIO=$?
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echo
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echo -n "OPTIONAL: Enable USB microphone support? [y/N] "
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read
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if [[ "$REPLY" =~ (yes|y|Y)$ ]]; then
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ENABLE_MIC=1
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fi
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echo
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echo -n "OPTIONAL: Enable LIS3DH accelerometer support? [y/N] "
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read
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if [[ "$REPLY" =~ (yes|y|Y)$ ]]; then
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ENABLE_ACCEL=1
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fi
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# HDMI resolution selection might be handled later; right now nothing
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# requires it. But in the future if anything relies on fb2matrix.py,
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# HDMI resolution ultimately determines the frame rate that's possible,
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# flipside being that some monitors can't handle extremely low resolutions.
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# So an option might be presented here, set to 320x240 or 640x480 (the
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# latter being the minimum resolution some displays can support).
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# VERIFY SELECTIONS BEFORE CONTINUING --------------------------------------
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echo
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echo "LED matrix size: ${SIZE_OPTS[$MATRIX_SIZE]}"
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echo "GPIO slowdown: ${SLOWDOWN_OPTS[$SLOWDOWN_GPIO]}"
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echo "Enable USB microphone support: ${OPTION_NAMES[$ENABLE_MIC]}"
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echo "Enable LIS3DH support: ${OPTION_NAMES[$ENABLE_ACCEL]}"
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#echo "HDMI resolution: ${HDMI_OPTS[$HDMI_SIZE]}"
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echo
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echo -n "CONTINUE? [y/N] "
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read
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if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
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echo "Canceled."
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exit 0
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fi
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# Check whether RGB matrix library is present.
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# If not, offer to download and run that script first (then return here).
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echo
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echo "Updating package index files..."
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apt-get update
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apt-get -qq install python3-pip python-pip
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echo -n "Checking for RGB matrix library..."
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pip3 freeze | grep rgbmatrix > /dev/null
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if [ $? -eq 0 ]; then
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echo "OK."
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else
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echo "not present."
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echo "Would you like to download and install the RGB matrix"
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echo "library (required by Spectro) first? If so, DO NOT REBOOT"
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echo "when prompted. You’ll return to this script for more"
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echo "Spectro configuration."
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echo -n "Run RGB matrix installer? [y/N] "
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read
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if [[ "$REPLY" =~ (yes|y|Y)$ ]]; then
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wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/rgb-matrix.sh -O rgb-matrix.sh
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bash rgb-matrix.sh
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echo
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echo "You are now back in the main Spectro installer script."
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echo "When prompted about reboot again, now it's OK!"
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fi
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fi
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# START INSTALL ------------------------------------------------------------
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# All selections are validated at this point...
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# Given a filename, a regex pattern to match and a replacement string,
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# perform replacement if found, else append replacement to end of file.
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# (# $1 = filename, $2 = pattern to match, $3 = replacement)
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reconfig() {
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grep $2 $1 >/dev/null
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if [ $? -eq 0 ]; then
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# Pattern found; replace in file
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sed -i "s/$2/$3/g" $1 >/dev/null
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else
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# Not found; append (silently)
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echo $3 | sudo tee -a $1 >/dev/null
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fi
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}
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# Same as above, but skips if pattern not found
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reconfig2() {
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grep $2 $1 >/dev/null
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if [ $? -eq 0 ]; then
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# Pattern found; replace in file
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sed -i "s/$2/$3/g" $1 >/dev/null
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fi
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}
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echo
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echo "Starting installation..."
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# Although Spectro is all Python3-ready, user additions might rely on
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# Python2, so we'll install the prerequisite libraries for both 2 and 3...
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echo "Downloading prerequisites..."
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pip3 install psutil RPi.GPIO
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pip install psutil RPi.GPIO
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apt-get install -y --allow-unauthenticated python3-dev python3-pillow python2.7-dev python-pillow
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if [ $ENABLE_MIC -ne 0 ]; then
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apt-get install -y --allow-unauthenticated python3-pyaudio python3-numpy python-pyaudio python-numpy
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fi
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if [ $ENABLE_ACCEL -ne 0 ]; then
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pip3 install adafruit-circuitpython-busdevice adafruit-circuitpython-lis3dh
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pip install adafruit-circuitpython-busdevice adafruit-circuitpython-lis3dh
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fi
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echo "Downloading Spectro software..."
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curl -L https://github.com/adafruit/Adafruit_Spectro_Pi/archive/master.zip -o Adafruit_Spectro_Pi.zip
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unzip -q -o Adafruit_Spectro_Pi.zip
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rm Adafruit_Spectro_Pi.zip
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mv Adafruit_Spectro_Pi-master Adafruit_Spectro_Pi
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chown -R pi:pi Adafruit_Spectro_Pi
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# CONFIG -------------------------------------------------------------------
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echo "Configuring system..."
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if [ $ENABLE_MIC -ne 0 ]; then
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# Change ALSA settings to allow USB mic use
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reconfig2 /usr/share/alsa/alsa.conf "^defaults.ctl.card.*0" "defaults.ctl.card 1"
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reconfig2 /usr/share/alsa/alsa.conf "^defaults.pcm.card.*0" "defaults.pcm.card 1"
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fi
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if [ $ENABLE_ACCEL -ne 0 ]; then
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# Enable I2C for accelerometer
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raspi-config nonint do_i2c 0
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fi
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# Make default GIFs directory
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mkdir /boot/gifs
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# Set up LED columns, rows and slowdown in selector.py script
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reconfig2 ./Adafruit_Spectro_Pi/selector.py "^FLAGS.*$" "FLAGS\ =\ [\"--led-cols=${MATRIX_WIDTHS[$MATRIX_SIZE]}\",\ \"--led-rows=${MATRIX_HEIGHTS[$MATRIX_SIZE]}\",\ \"--led-slowdown-gpio=${SLOWDOWN_OPTS[$SLOWDOWN_GPIO]}\"]"
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# Force HDMI out so /dev/fb0 exists
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reconfig /boot/config.txt "^.*hdmi_force_hotplug.*$" "hdmi_force_hotplug=1"
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#reconfig /boot/config.txt "^.*hdmi_group.*$" "hdmi_group=2"
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#reconfig /boot/config.txt "^.*hdmi_mode.*$" "hdmi_mode=87"
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# Auto-start selector.py on boot
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grep selector.py /etc/rc.local >/dev/null
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if [ $? -ne 0 ]; then
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# Insert selector.py into rc.local before final 'exit 0'
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sed -i "s/^exit 0/cd \/home\/pi\/Adafruit_Spectro_Pi\;python3 selector.py \&\\nexit 0/g" /etc/rc.local >/dev/null
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fi
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# PROMPT FOR REBOOT --------------------------------------------------------
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echo "Done."
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echo
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echo "Settings take effect on next boot."
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echo "For proper clock time, set the time zone with raspi-config."
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echo
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echo -n "REBOOT NOW? [y/N] "
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read
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if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
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echo "Exiting without reboot."
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exit 0
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fi
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echo "Reboot started..."
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reboot
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sleep infinity
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