Description The M5Stack Din Base is a compact 5 x 5cm base designed for DIN rail mounting with M5Core hosts. It combines a secure industrial mounting format, a built-in 500mAh battery, and external DC 9 to 24V input for Core-based control and automation projects. The M5Stack Din Base keeps Port.B and Port.C available, adds a physical power switch that can cut off external power and the internal battery, and provides multiple mounting choices including standard 35mm DinRail, detachable hanging ears, bottom copper nuts, and side LEGO fixing holes. Features Compact DIN rail base for M5Core hosts and 5 x 5cm series installations. Integrated 500mAh battery plus DC 9 to 24V external power input. Physical power switch for complete external power and battery cutoff. Reserved Port.B and Port.C interfaces for expansion and serial communication. 1 x 12P 2.54mm interface and multiple internal proto pads for DIY customization. Multiple mounting methods: DinRail, hanging ears, bottom copper nuts, and LEGO fixing holes. Specifications Item Parameter DC-DC buck chip SY8303AIC Lithium charge chip TP4057 External power input DC 9 to 24V Battery capacity 500mAh DIN rail support Standard 35mm DinRail Interfaces Port.B, Port.C, 1 x 12P 2.54mm interface Size 54.0 x 54.0 x 22.5mm Weight 32.4g Package size 95.0 x 66.0 x 26.0mm Gross weight 64.5g Applications DIN rail base mounting for M5Core control nodes. DIY automation projects that need a compact M5Stack Din Base. Standalone power supply scenarios for Core hosts. Industrial cabinets, prototype fixtures, and service-panel controller builds. Product List 1 x Base DIN 4 x Hanging Ear 1 x Buckle 1 x Hex Wrench 2 x M3 x 25mm screws for Core2/CoreS3 2 x M3 x 22mm screws for Core1 2 x M3 x 20mm screws for Core2/CoreS3 Other Content Use the DC 9 to 24V input range when planning external power, and keep the physical power switch accessible if the installation needs complete shutdown from both external power and the 500mAh battery. For mechanical work, the bottom supports standard 35mm DinRail mounting, while the hanging ears, copper nuts, and LEGO fixing holes make the base easier to adapt to different enclosures and prototypes. Resources Product documentation Schematic PDF TP4057 datasheet SY8303AIC datasheet FAQ What is the M5Stack Din Base used for? It mounts an M5Core host on a DIN rail base while adding flexible power input, a 500mAh battery, and convenient expansion interfaces. What power input does it support? It supports DC 9 to 24V external input and includes a built-in lithium battery for standalone or backup power scenarios. Can it be mounted without a DIN rail? Yes. Besides the standard DinRail mount, the package includes hanging ears, and the base also provides bottom copper nuts plus LEGO fixing holes. Which Core devices is it intended for? It is designed for M5Core hosts, with screw sets listed for Core1, Core2, and CoreS3 installations.
