async_call: ashet.io.serial.break

Documentation

Sends a break signal.

LEARN: A break signal means that the TX line is held *low* for a given duration larger than a single word. This way, the receiver can recognize an event that will be transferred "out of band" and allows to send an event to the receiver.

In DMX, this is used to signal the start of a new frame.

Inputs

port: io.serial.SerialPort
duration: Duration

Errors

InvalidHandle
Unsupported: The serial port does not support sending breaks.