USB head is male, can be directly connected to the computer USB portĬhip components for SMT process production, quality and stability The RS232 level:-12V to-3V, which is equivalent to logic "0", +3 V to +12 V, the logic level is equivalent to logic "1" is negative logic,ġ, the main chip CP2102, install the driver generates virtual serial portĢ, USB to take power, and interface 3.3V (<40mA) 5V, GND, TX, RX, the signal pin level is 3.3V, positive logicīoard status indicators, transceiver LED status indicator lit, install the correct drivers, transceiver indicator flashes when communication baud rate the higher the lower the brightnessĤ, support the baud rate from 300bps to 1MbpsĬommunication format support: 1) 5, 6, 7, 8 data bits 2) support for 1, 1.5, 2 stop bits 3) odd, even, mark, space, none parityĦ, support for the operating system: Windows Vista / xp / Server 2003/200 Mac OS-X/OS-9, Linux TTL level: usually binary, requiring +5 V equivalent to the logic "1", 0 V is equivalent to a logic "0", referred to as TTL signal system is the positive logic suggests, is receiving the data sent, that own directly connected to the RXD TXD is used to send and receive test itself is normal, is the quickestand simplest test method, first do the test to determine whether the failure of the product when problems arise.Collected spontaneously: normal communication, the TXD RXD take other equipment, so if you want to receive their data sent the name.Normal communication itself TXD is always connected to the RXD!.RXD: the receiving end, generally expressed as the receiving end, the normal communication for must be connected to another device TXD.TXD: the sender, the general said the sending end, the normal communication must be connected to another device RXD.
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