clocktest

Used to determine the accuracy of the Rainbowduino's clock. Every 10 seconds, clocktest will tell you how long it took to send a message and get a response, and how much the Rainbowduino's clock has shifted relative to the PC's clock.

This information can be used with the SET_CLOCK_ADJUST command to give more accurate time. The SET_CLOCK_ADJUST command takes the number of milliseconds it takes for the Rainbowduino to lose or gain a millisecond. If your Rainbowduino's clock is running fast, a negative number will slow the clock down; if the clock is running slow, a positive number will speed the clock up.

Option	Description
‑p path	Specifies the path to the serial port device. Can also be specified with the environment variable ARDUINO_PORT.
‑b baud	Specifies the baud or bit rate used to communicate with the serial port. Defaults to 9600. Can also be specified with the environment variable ARDUINO_BITRATE.
‑c msec	Runs the clock test with the specified value for SET_CLOCK_ADJUST.