Interface modes£ºSerial USB/CMOS/RS232/RS485 Controller£º MCU Operating Voltage: 3.3V~42V Current: low power USB Interface: USB Cable SD Card: Mini SD Touch screen: optional Keyboard£ºBuilt-in virtual/external keyboard Buzzer: optional Clock: Yes TFT Color: 64K/16M color Storage Language: Multiple Languages Image Storage: Support Refreshing display rate: 0.1~50ms Temperature range: -40¡ã~85¡æ 1. Use high-quality grade A TFT 2. Uniform interface for easy product upgrading 3. Simple and 3 wire serial interface 4. 60 multiple languages for option 5. Full , partly and Iconic display mode 6. Integrated touch screen, keyboard, clock and music playing function 7. Auto switch of touch interface and clock auto overlapping display 8. Integrated Pinyin Input Method and lunar calendar enquiry function Only one MCU to send instructions by serial interface during development process