Simple Serial

simple_serial.rb

# Simple Serial Listener I have used to listen to Arduino from Ubuntu. 
# That is all.

require "serialport"

#params for serial port
port_str  = "/dev/ttyACM0"  #may be different for on different machines
baud_rate = 9600
data_bits = 8
stop_bits = 1
parity    = SerialPort::NONE

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

#just read forever
while true do
  getc = sp.getc
  getc != nil ? printf("%c", getc) : getc = 0
end

sp.close