This release includes a new module for the core pinduino library for controlling relays for high-voltage circuits. This module is called DataPort, and is accessible through the core pinduino library by calling the pinduino object (e.g., pd):
pd.port1()->high();
delay(75);
pd.port1()->low();
This would send a high signal down the first port of the pinduino, which would hold a relay or tranistor on for 75 milliseconds before being turned to low.