Arduino Cereal Monitor

Drop-in replacement for Arduino's serial monitor with variable watches.

How it works

Use Serial.print, Serial.println, etc. to print data to [Monitor] window. To track variables in [Variables] window, use Cereal library (documentation & demo).

Install

$ npm install --global arduino-cereal

OR run it with npx

$ npx arduino-cereal

Requires Node v14.0.0 or later

CLI options

$ arduino-cereal --help

  Usage
    $ arduino-cereal

  Options
    --port   Serial port
    --baud   Baud rate (default: 9600)
    --theme  Theme name (light, dark, black, white)
    --fps    Screen render rate (default: 15)

• port: – Serial port to which Arduino board is connected.
• baud: – Baud rate. Default value 9600
• theme: – Change the color theme. Available options are light, dark, black, black. The default theme is dark. Read more about theme customization.
• fps – Control the rate at which the CLI screen is updated. Helps to deal with flickering on some terminal apps (iTerm). Default: 15

Example:

$ arduino-cereal --port=/dev/tty.usbserial-1410 --baud=19200 --theme=light --fps=10

Configuration file

Alternatively, CLI options can be read from a file – cereal.config.json. This file is expected to be located in the current working directory.

{
  "port": "/dev/tty.usbserial-1410",
  "baud": 9600,
  "fps": 15,
  
  "theme": { /** Theme customization options */ }
}

Contributing

Contributions are welcome. 🎉

License

Licensed under the MIT license. See the LICENSE.md for more information.