The Atomic Port ABC Base is a dedicated expansion dock for the ATOM series Grove ports, allowing users to simultaneously connect I2C, UART, and GPIO type Unit expansion units. The product offers multiple mounting methods, such as hanging, for LEGO-connection, and screw fixing, suitable for building multifunctional mini node controllers and other scenarios. Compatible with PORT A/B/C (I2C/GPIO/UART) Compatible with ATOM series mainframes Applications: Multi-functional control nodes Specifications: Applicable sensor interface types: I2C, UART, GPIO Operating temperature: 0~40°C Supported ATOMs: Atom-Matrix, Atom-Lite, ATOMS3, AtomS3-Lite Color: Gray Material: plastic Package Contents: 1 * Atomic Port ABC Base 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.