Arduino and ruby code for The Vibrating Belt. More information can be found at: http://christian.gen.co/2013/04/08/the-vibrating-belt.html

serial_vibrating_belt.ino

#simplest ruby program to read from arduino serial, 
#using the SerialPort gem
#(http://rubygems.org/gems/serialport)
# from http://playground.arduino.cc/interfacing/ruby

require 'serialport'
require 'pry'

# https://github.com/igrigorik/em-websocket
# require 'em-websocket'

#params for serial port
port_str = "/dev/tty.usbmodem1411"
baud_rate = 9600
data_bits = 8
stop_bits = 1
parity = SerialPort::NONE

@@sp = SerialPort.new(port_str, baud_rate, data_bits, stop_bits, parity)

def map(value, min, max, mappedMin, mappedMax)
  min, max = [min, max].sort
  mappedMin, mappedMax = [mappedMin, mappedMax].sort

  # make sure the value is within the bounds
  value = [value, min, max].sort[1]

  value += (mappedMin - min)
  value *= (mappedMax / (max * 1.0))

  value.round(2)
end

# @frequency = 3

def angle(i)
  @@sp.print i
  # @@sp.print "\000"
end

def vibe(angle, power)
  codes = []
  codes << "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
  codes << "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
  codes << "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A\x2B\x2C\x2D\x2E\x2F"
  codes << "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F"
  codes << "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4A\x4B\x4C\x4D\x4E\x4F"
  codes << "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5A\x5B\x5C\x5D\x5E\x5F"
  codes << "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6A\x6B\x6C\x6D\x6E\x6F"
  codes << "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7A\x7B\x7C\x7D\x7E\x7F"
  codes << "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F"
  codes << "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F"
  codes << "\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF"
  codes << "\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF"
  codes << "\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF"
  codes << "\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF"
  codes << "\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF"
  codes << "\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF"

  angle_index = map(angle, 0, 360, 0, 15).to_i
  power_index = map(power, 0, 100, 0, 15).to_i

  codes[angle_index][power_index]
end

((1..9).to_a + ('A'..'F').to_a).each{|x| puts "x#{x}0x#{x}1x#{x}2x#{x}3x#{x}4x#{x}5x#{x}6x#{x}7x#{x}8x#{x}9x#{x}Ax#{x}Bx#{x}Cx#{x}Dx#{x}Ex#{x}F"}

binding.pry


# while (line = @@sp.gets) do
#   next unless line
#   line.chomp!
#   p line
#   # Thread.new{`afplay bell.aiff`} if line.to_i > 500
#   Thread.new{`afplay harlem.mp3`} if line.to_i > 500
# end

serial_vibrating_belt.rb

#simplest ruby program to read from arduino serial, 
#using the SerialPort gem
#(http://rubygems.org/gems/serialport)
# from http://playground.arduino.cc/interfacing/ruby

require 'serialport'
require 'pry'

# https://github.com/igrigorik/em-websocket
# require 'em-websocket'

#params for serial port
port_str = "/dev/tty.usbmodem1411"
baud_rate = 9600
data_bits = 8
stop_bits = 1
parity = SerialPort::NONE

@@sp = SerialPort.new(port_str, baud_rate, data_bits, stop_bits, parity)

def map(value, min, max, mappedMin, mappedMax)
  min, max = [min, max].sort
  mappedMin, mappedMax = [mappedMin, mappedMax].sort

  # make sure the value is within the bounds
  value = [value, min, max].sort[1]

  value += (mappedMin - min)
  value *= (mappedMax / (max * 1.0))

  value.round(2)
end

# @frequency = 3

def angle(i)
  @@sp.print i
  # @@sp.print "\000"
end

def vibe(angle, power)
  codes = []
  codes << "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
  codes << "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
  codes << "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A\x2B\x2C\x2D\x2E\x2F"
  codes << "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F"
  codes << "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4A\x4B\x4C\x4D\x4E\x4F"
  codes << "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5A\x5B\x5C\x5D\x5E\x5F"
  codes << "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6A\x6B\x6C\x6D\x6E\x6F"
  codes << "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7A\x7B\x7C\x7D\x7E\x7F"
  codes << "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F"
  codes << "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F"
  codes << "\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF"
  codes << "\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF"
  codes << "\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF"
  codes << "\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF"
  codes << "\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF"
  codes << "\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF"

  angle_index = map(angle, 0, 360, 0, 15).to_i
  power_index = map(power, 0, 100, 0, 15).to_i

  codes[angle_index][power_index]
end

((1..9).to_a + ('A'..'F').to_a).each{|x| puts "x#{x}0x#{x}1x#{x}2x#{x}3x#{x}4x#{x}5x#{x}6x#{x}7x#{x}8x#{x}9x#{x}Ax#{x}Bx#{x}Cx#{x}Dx#{x}Ex#{x}F"}

binding.pry


# while (line = @@sp.gets) do
#   next unless line
#   line.chomp!
#   p line
#   # Thread.new{`afplay bell.aiff`} if line.to_i > 500
#   Thread.new{`afplay harlem.mp3`} if line.to_i > 500
# end