asciilifeform: BingoBoingo: you'll be happy to learn that the box has rs232 now. (ttl level voltage)

asciilifeform: https://www.zaber.com/w/images/thumb/1/13/Rs232_waveform_instruction_byte.jpg/400px-Rs232_waveform_instruction_byte.jpg

asciilifeform: http://www.ermicro.com/blog/wp-content/uploads/2008/12/rs232_01.jpg