Description The M5Stack ATOMIC PortABC Extension Base is a Grove port expansion base designed for ATOM series hosts. It makes it easier to connect I2C, UART, and GPIO Unit expansion modules through the familiar Port A, Port B, and Port C interface layout. The base is built for compact multi-function node controllers and supports several mounting methods, including hanging, LEGO-style connection, and screw fixation. It is useful when an ATOM project needs multiple Grove-style expansion interfaces in a small and simple base. Features Port A/B/C expansion: supports I2C, GPIO, and UART Unit module connections. ATOM series support: compatible with ATOM series host controllers. Flexible mounting: supports hanging, LEGO-style connection, and screw fixation. Compact node design: suitable for building multi-function mini-node controllers. Pinout reference included: package includes a pinout diagram for quick wiring reference. Specifications Supported Sensor Interfaces I2C, UART, GPIO Operating Temperature 0 ~ 40 degrees C Supported ATOM Models Atom-Matrix, Atom-Lite, AtomS3, AtomS3-Lite Product Size 64 x 24 x 29mm Package Size 91 x 42 x 24.5mm Product Weight 5g Gross Weight 10g Applications Multifunctional control nodes ATOM series projects that need I2C, UART, or GPIO Unit expansion Compact sensor and actuator controller builds Prototype wiring with a clear Port A/B/C pinout reference Product List 1 Atomic Port ABC Base 1 Pinout Diagram Other Content Interface Notes Port A I2C expansion interface Port B GPIO expansion interface Port C UART expansion interface Mounting Options Hanging, LEGO-style connection, screw fixation The included pinout diagram helps identify the Port A/B/C wiring layout when connecting Unit expansion modules. Resources M5Stack ATOMIC PortABC Extension Base documentation FAQ What is the ATOMIC PortABC Extension Base used for? It expands an ATOM series host with Grove-style Port A, Port B, and Port C interfaces for I2C, GPIO, and UART Unit modules. Which ATOM hosts are supported? The official specifications list Atom-Matrix, Atom-Lite, AtomS3, and AtomS3-Lite. Does the package include an ATOM controller? No. The official product list includes 1 x Atomic Port ABC Base and 1 x Pinout Diagram. Which interface types does it support? It supports I2C, UART, and GPIO sensor or Unit module interfaces. How can it be mounted? The official description lists hanging, LEGO-style connection, and screw fixation mounting options.
