StampS3A Control Module (ESP32-S3FN8). EZData Cloud Monitoring 8 Opto-isolated Digital Inputs. 4 Relay Outputs (AC/DC) WR-CAN & PWR-485 Interfaces StamPLC is an IoT programmable logic controller designed for industrial automation and remote monitoring. The product is based on the StampS3A control module, which not only delivers powerful processing capabilities but also provides efficient wireless connectivity. In terms of control, StamPLC offers 8 opto-isolated digital inputs and 4 relay outputs (supporting both AC and DC loads), along with a GPIO.EXT port and 2 Grove interfaces, making the integration of various sensors and actuators both simple and reliable. Meanwhile, through the onboard PWR-CAN and PWR-485 interfaces, the device can be seamlessly integrated into industrial fieldbus networks, enabling remote data transmission and centralized control. For human-machine interaction, the product features a 1.14-inch color display, a RESET/BOOT button, 3 user buttons, and a buzzer, which facilitate real-time parameter configuration and status monitoring, and can alert users in the event of anomalies. To withstand harsh industrial environments, StamPLC supports a wide voltage input (DC 6-36V) and is designed for DIN rail mounting to ensure secure installation; the built-in Micro-SD card slot further facilitates data storage and firmware updates. Note: Power supply precautions Precautions:The power supply output pins for StamPLC's PWR-CAN and PWR-485 are directly connected to the main input power. Therefore, during operation, please ensure that the input voltage matches the power requirements of any connected external devices. The product appearance and printed words may vary depending on the batch, but this does not affect use. Colour:As Shown Material:PCB Package Contents: 1 * IOT Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.