How can I send just bytes by rubyserial?

[asiniy]

IE:

require 'rubyserial'
serialport = Serial.new '/dev/ttyACM0', 9600
serialport.write(0xff) # => exception...

[zankich]

@asiniy the write method accepts a string so you can pack, http://ruby-doc.org/core-2.2.1/Array.html#method-i-pack, a single byte like this and that should do what you need

[0xff].pack('C')

[asiniy]

@zankich, thx!