Arduino Pro Opta Ext A0602 expands the real-time control, monitoring and predictive maintenance applications of your Arduino Opta with six programmable inputs, two programmable outputs and four PWM outputs. By simply plugging in the module, you can flexibly and quickly expand your system's capabilities and seamlessly manage the new I/Os from the Opta base unit, taking advantage of the open and well-known Arduino ecosystem or the PLC IDE IEC 61131-3 programming environment.