udp-to-serial

A Node.js server that listens to a specified UDP port and writes whatever data it receives to a local serial port.

Written so we could send VISCA via UDP to a local RS-485 serial adapter to control multiple Marshall CV503 cameras.

Known to work with this adapter: https://www.amazon.com/gp/product/B078X5H8H7/ DSD TECH SH-U10 USB to RS485 Converter with CP2102 Chip Compatible with Windows 7,8,10,Linux,Mac OS

Installing this software:

• Copy the code to a working directly on your computer. Make sure Node is installed.
• Run npm install to make sure all required modules are downloaded and installed.
• Run node index.js to start the server.

Running via pm2

• Install pm2: sudo npm install pm2 -g
• Within the udp-to-serial folder, type: pm2 start index.js --name udp-to-serial
• pm2 startup
• pm2 save

By default, the server will attempt to open:

• UDP Port 52381
• Serial Port /dev/ttyUSB0 with a baud rate of 9600

This is configurable by modifying the config.json file.

If you're not sure what your serial port address is, on Linux, you can run this command:

dmesg | grep tty

It will filter the list to show you the serial ports.