... . 4, work with any manchinery. 5,rs232 interface. Specifications:1), TFT-LCD: A+ class Industry Screen2), Interface: RS-232/3.3V TTL3 ... : 95.0*53.9 mm16), Power Consumption: 1.5 W 17), Interface: RS-232/3.3V TTL18), Processing Speed: Switch 14 ... "Instruction Set". Working principle for Touch-Control function: When touching the button on the screen, the TFT-LCD Module will output a feedback value ...