Serial Sniffer

Sniffer serial traffics between two devices.

Cable and Connection

RX/TX lines of the serial bus are connected perspectively to the two RX pins of different serial devices on a PC.

A sample connection and cable:

Installation

$ npm install

Usage

Linux:

./bin/serisnif -l /dev/ttyUSB0 -L foo -r /dev/ttyUSB1 -R bar -b 9600 -f foo-bar.log

Windows:

node ./src/serisnif.js -l -L foo COM1 -r COM2 -R bar -b 9600 -f foo-bar.log

Options:

• -l --left dev: left side device
• -L --lefttName name: left side device name
• -r --right dev: right side device
• -R --rightName name: right side device name
• -b --baud: baud rate
• -f --file filename: save logs into a file
• -i --inter-frame-timeout n: inter-fame timeout time in ms
• -h --help: help

Log File Max Size

By default, the log file will automatically split once it reaached size of 10M. The size limit can be configured by '-s N', where N is in Kilo-byte.

Screenshot