Description The M5Stack PLC Proto is a compact industrial control base built around the M5 development system. It uses an industrial-grade enclosure and DC 9 to 24V input, giving automation prototypes a rugged base for essential controller functions without the size and power draw of a traditional PLC. This industrial control base supports TTL-RS485 communication, relay expansion as needed, module stacking, and custom circuit work through the included PLC-Proto board. A LoRa module can be stacked to build a LoRa communication node for industrial-grade applications. Features Industrial control base with compact M5Stack PLC Proto form factor. DC 9 to 24V input range for industrial power environments. TTL-RS485 support for serial communication and field-device integration. Relay expansion and module stacking for flexible control designs. PLC-Proto board included for follow-up circuit expansion and customization. Industrial-grade enclosure with DIN rail accessories and M12 cable gland. Specifications Item Parameter Input voltage DC 9 to 24V Communication TTL-RS485 Expansion Relay switches, functional module stacking, PLC-Proto board circuit expansion Enclosure Industrial-grade enclosure with M12 cable gland DIN rail accessories 35mm silver metal DIN rail and 35mm black DIN rail clip Size 54 x 54 x 28mm Weight 25g Package size 105 x 65 x 40mm Gross weight 133g Applications Industrial control base prototypes for M5Stack projects. Compact automation controllers that need TTL-RS485 communication. Relay switching, LoRa communication nodes, and custom circuit expansion. Cabinet-mounted field prototypes using DIN rail and M12 cable entry. Product List 1 x PLC Proto Board 1 x PLC Base Enclosure 1 x RS485-to-TTL Adapter Board 1 x HT3.96-4P Terminal 2 x HT3.96-3P Terminal 1 x Hex Key L-Shape 1.5mm 1 x Hex Key L-Shape 2.0mm 1 x Hex Key L-Shape 2.5mm 10 x 2mm Crimp Terminal 1 x Magnet (center hole, diameter 15mm, 3mm thick) 1 x 35mm Silver Metal DIN Rail 1 x 35mm Black DIN Rail Clip 2 x M3 x 28mm Cap Head Machine Screw 4 x M2 x 5mm Cap Head Self-Tapping Screw 1 x Cable Gland (M12) 1 x 2.54mm-20P Straight Male Header (overall height 5.32mm) 1 x Product Sticker Other Content The M5Stack PLC Proto can be combined with relay modules for switching tasks, with LoRa modules for wireless node designs, and with the included proto board for user-defined circuit expansion. Use the base with the supplied DIN rail parts when building cabinet prototypes, and keep the M12 cable gland available for cleaner cable routing in enclosed installations. Resources Product documentation RS485 schematic image FAQ Is this a traditional programmable logic controller? No. It is a compact base for M5Stack projects, designed to provide common controller functions through the M5 development system. What voltage input does it support? It supports DC 9 to 24V input for industrial power setups. Does it support RS485 communication? Yes. The module supports TTL-RS485 communication and includes an RS485-to-TTL adapter board in the package. Can it be expanded with other modules? Yes. Relay expansion and functional module stacking are supported, including stacking a LoRa module to create a LoRa communication node.
