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PL2303 is a highly integrated RS232-USB interface converter manufactured by Prolific company,providing a RS232 full-duplex asynchronous serial communication device and the convenient connection solution of USB interface.It includes the built-in USB device controller and can be easily embedded into the handheld device.

General specifications

volume 3.1 cm*1.8 cm
Voltage 3.3V or 5V
Function USB to TTL
Speed Baud rate from 75bps to 2 MbPS
Internal devices USB1.1 receiver,5V to 3V Stabilizer, 12 MHz crystal oscillator
The power supply output 5V-500mA or 3.3V-100mA
Data bits 5,6,7 or 8 data bits
Buffer (1) 256 bytes of output buffer and 256 byte input buffer
(2) 128 bytes of output buffer and 384 byte of input buffer
Support system Full support for Win8, Win7, WinXp, Win2K, WinCE, Linux, Mac, systems, 32bit and 64bit system.
Support current protection Yes
Support USB Suspend state Yes
CPIO pin extension 5V pin,3.3V pin,TXD,RXD,GND,VCC

Install and test

These operations run in the Lemuntu system
Step 1: Insert the USB to Serial adapter into LeMaker Guitar.
Step 2: Check up wether recognize the usb serial port or not through the following command.

ls /dev/ttyUSB*

When find ttyUSB0 nodes,we can explain it has correctly identified the usb serial port module.
Step 3: Run the command below to set up USB to Serial.

sudo apt-get install minicom
sudo minicom -s

LeMaker Guitar & Base Board Rev.B
Step 4:Select a serial port settings, refer to the below.
LeMaker Guitar & Base Board Rev.B
You can use USB to serial module after setting up the usb serial port module.