C18Home » Hardware » Modules » C18 Universal I/OAbstract: Universal programmable input and output lines. SpecsUniversal I/O module.Features,EDG interface (TTL /w signal reshaping)8x programmable output ports Open Drain (<50V), up to 500mA per channel /w <1000mA total aggregateOutput may drive coils5x input ports up to 50V voltagefirmware update over the bus GitHub