
Spartan Arduino PLC 16DA (Optoisolated Output) is an industrial programmable logic controller built around the Arduino Leonardo architecture, combining the flexibility of open-source development with the reliability expected from industrial automation hardware. This compact industrial control board integrates 8 input channels and 8 output channels supporting digital, analog, and PWM control with electrical isolation for enhanced safety. Designed for automation cabinets, machine control, and distributed control networks, this industrial automation controller enables rapid deployment of custom control logic while maintaining compatibility with widely used microcontroller development tools.
Optoisolated Industrial I/O for Reliable Automation
This industrial control module integrates 8 input channels and 8 isolated output channels supporting analog, digital, and PWM signaling. Electrical isolation protects control circuitry from voltage spikes, electrical noise, and grounding issues commonly present in industrial environments. Such protection improves operational reliability for automation systems controlling motors, relays, valves, and industrial sensors. Digital inputs support wide voltage ranges, while isolated outputs enable secure switching and control across external equipment operating between 5–24V.
Arduino Leonardo Core for Flexible Programming
An onboard Arduino Leonardo microcontroller allows direct programming through the USB interface using standard Arduino development tools. This open-source PLC controller benefits from a large ecosystem of libraries, examples, and development resources, simplifying custom automation logic development. Standardized Spartan controller architecture ensures consistent programming behavior across modules, enabling scalable automation solutions where multiple control nodes share similar firmware structures and configuration methods.
I2C Expansion for Scalable Industrial Control
An integrated I2C communication interface supports master–slave networking capable of linking up to 127 modules within a distributed automation system. This expandable architecture enables coordinated control across multiple industrial nodes, sensor modules, and actuator controllers. Additional interfaces including RS485, SPI, TTL, and USB further enhance connectivity options, supporting integration with industrial networks, monitoring systems, and embedded computing platforms used in modern automation environments.

Figure: Spartan Arduino PLC 16DA (Optoisolated Output)

Figure: Spartan Arduino PLC 16DA (Optoisolated Output)

Figure: Spartan Arduino PLC 16DA (Optoisolated Output)
This programmable industrial controller is suitable for machine automation, process monitoring, equipment control panels, and distributed industrial control systems. Industrial robotics platforms, factory automation nodes, building management systems, and custom control cabinets benefit from the combination of microcontroller flexibility, isolated industrial I/O, and expandable communication architecture.