-->> UART to RS232 <<--

With the PC-the continuous upgrading of the future, to provide RS232 serial port of the PC less and less equipment, especially high-end notebook now difficult to find a RS232 serial port, USB interface to replace. But some other serial devices to receive up this new PC? For example, many categories of products to control the use of RS232/RS485, developers can accurately control issued from the serial port of each byte to receive from the serial port of each byte, and does not require complex drive, very convenient, and a number of embedded devices and ultimately, RS232 interface is serial. In addition, the USB device driver to prepare a very complex, and the RS232 serial port is much easier programming, VC / VB / DEPHI and others have relatively simple method of serial programming, for many officers, all of a sudden all transplanted to USB devices also need a very long process, especially the cost of some restrictions on the equipment itself is of low-end USB interface can not be achieved, a simple serial port is the best option.

USB to RS232 is a good way, through the converter, only need to occupy a USB interface, you can provide an even number of serial, virtual serial port can be set to COM1 to COM4, especially in an environment Windows2k/XP Under the original users of ordinary serial programming can be directly moved to a new home up the virtual serial port without the need to make any changes.

we can offer:
1, an external USB to RS232 converter, one end is a USB interface, one end is a standard DB9 serial port;
2, to provide conversion chips, one end of the USB interface (VCC \ DATA-\ DATA-\ GND), one end of the RS232 interface (TXD \ TXD \ GND), an additional driver;
3, to provide conversion chips, one end of the USB interface (VCC \ DATA-\ DATA-\ GND), one end of the RS232 interface (TXD \ TXD \ GND), to provide application programming interface (API).