Features: Full-duplex UART interface design, support for RS - 232 / RS - 485 (maximum 115 baud rate 115 basis points), UART (maximum baud rate is 921,600 bps). Internal software is designed for ease of operation and complete computer editing. Is easy to save an engineer or developer time and money to edit images and user interface, and so on. * Does not require complex operating systems; * CPU does not require expensive hardware structure; * Simple replace monochrome screen, physical buttons; * no need to build a complex GUI program; * simply by UART communication (115,200 bps); to provide free development tools; Panel size: 4.3 to 10.4. * 32 CPU 400 MHZ frequency; * 64 MB DDR2, Flash 512 MB; * Support TFT 16 bpp RGB standard connection; * Supports 8 × 8 keyboard; * Support RTC real time clock; * Support USB and TF card upgrade and data download; * Support for four-wire resistive touch; * Support keypad buzzer; * Support for the establishment of several fonts and their vocabulary; * support OEM & ODM services. Accessories: 1. RS232 DB9 + DC Cable (7-pin 15 cm) 2. RS485 men (7-pin) 3. TTL flat cable (10 pin 10 cm, lead pitch: 0.5 cm) 4. Mini USB cable 5.12 v DC adapter 6. Touch pen 7. cd drive 8. Manual 9. I / O control cable (16-pin) (optional) 10. Micro SD (TF) card (optional)