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A complete setup with many options can be performed by running the script at git.io/squishbox with the command

curl -L git.io/squishbox | bash

To perform the minimal steps to set up, first install the required software: Connect to your Pi via ssh or plug in a keyboard and monitor and type in the following commands to install the required software:

sudo apt install git python3-pip libfluidsynth1 fluid-soundfont-gm
sudo pip3 install oyaml RPLCD RPi.GPIO

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import matplotlib.pyplot as plt
import numpy as np
from scipy.stats import chi2

# load the data
data = np.loadtxt('chisqprob_demo.py', delimiter=',', skiprows=30, max_rows=3200)
vmeas = data[:,0]
vmodel = data[:,1]

sd_volts = 0.06 # voltage measurement uncertainty (estimated)

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# basic bank file
patches:
  Electric Piano:
    1: FM Piano.sf2:000:000
  Synth:
    1: VintageDreamsWaves-v2.sf2:000:042
  Jazz Combo:
    1: FluidR3_GM.sf2:000:004
    10: FluidR3_GM.sf2:128:000
    2: FluidR3_GM.sf2:000:033

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# fluidsettings and bank vs. patch level
patches:
  Piano:
    1: FluidR3_GM.sf2:000:000
  Rhodes EP:
    1: FluidR3_GM.sf2:000:004
    fluidsettings:
      synth.reverb.room-size: 0.1
  Legend EP:
    1: FluidR3_GM.sf2:000:005

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#!/bin/bash

installdir=""
UPDATED=false
UPGRADE=false
PYTHON_PKG=""
ASK_TO_REBOOT=false

promptorno() {
	read -r -p "$1 (y/[n]) " response < /dev/tty

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# router rules
patches:
  Layered Piano/Strings:
    1: FluidR3_GM.sf2:000:000
    2: FluidR3_GM.sf2:000:042
    router_rules:
    - {type: note, chan: 1=2}
  Split EP and Bass:
    3: FluidR3_GM.sf2:000:004
    2: FluidR3_GM.sf2:000:033

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import matplotlib.pyplot as plt
from matplotlib import cm, colors
from mpl_toolkits.mplot3d import Axes3D
import numpy as np
from scipy.special import sph_harm
 
# resolution - increase this to get a smoother plot 
#  at the cost of slower processing
N = 50
 

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#!/usr/bin/env python

# sampling time in seconds
SAMPLE_TIME = 10

# connection settings
MIN_PORT = 1
MAX_PORT = 20
BAUDRATE = 9600

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patches:
  Yamaha Grand Piano:
    1: FluidR3_GM.sf2:000:000
  Bright Yamaha Grand:
    1: FluidR3_GM.sf2:000:001
  Electric Piano:
    1: FluidR3_GM.sf2:000:002
  Honky Tonk:
    1: FluidR3_GM.sf2:000:003
  Rhodes EP:

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# messages keyword and init block
init:
  fluidsettings:
    synth.reverb.level: 1.0
    synth.reverb.room-size: 0.8
    synth.reverb.damp: 0.8
    synth.reverb.width: 5.0
  messages: [cc:1:74:0, cc:1:91:60]

messages: