Description The M5Stack M5StickC Proto Hat is a universal prototyping board compatible with M5StickC. It gives developers a compact board area for building simple custom circuits directly in the M5StickC HAT form factor. The official product page describes Hat Proto as a good choice when a project needs added simple circuitry together with a reliable protective case. It provides 40 plated board holes with 0.1 inch spacing for flexible circuit prototyping. This HAT is intended for quick circuit experiments, custom signal routing, and small add-on hardware designs around the M5StickC ecosystem. Features M5StickC compatible: designed as a HAT module for M5StickC. Universal prototyping area: provides a board area for simple custom circuit design. 40 board holes: official board hole count is 40 holes. Standard spacing: hole spacing is 0.1 inch, equal to 2.54mm. 1mm hole size: official hole size is 0.039 inch / 1mm using CNC processing. Protective case design: suitable for prototypes that need a compact board with a protective enclosure. Specifications Compatibility M5StickC Board Type Universal prototyping board Hole Size 0.039 inch / 1mm Hole Spacing 0.1 inch / 2.54mm Number of Board Holes 40 holes Product Size 35.0 x 24.0 x 13.7mm Product Weight 5.5g Package Size 138.0 x 93.0 x 14.7mm Gross Weight 13.0g Applications Circuit prototyping M5StickC add-on hardware experiments Simple custom circuit expansion Compact proof-of-concept builds with a protective case Product List 1 Hat Proto 1 Double-sided tape Other Content Prototyping Notes Use Case Adding simple custom circuits to a M5StickC project Form Factor M5StickC HAT Board Construction CNC-processed 1mm holes with 2.54mm spacing Included Controller Not listed in the official product list The official product list includes Hat Proto and double-sided tape. It does not list an M5StickC controller or extra electronic components as included. Resources M5Stack Proto Hat documentation FAQ What is the M5StickC Proto Hat used for? It is used as a compact universal prototyping board for adding simple custom circuits to M5StickC projects. How many board holes does it provide? The official product page lists 40 board holes. What is the hole spacing? The official hole spacing is 0.1 inch, equal to 2.54mm. What is included in the package? The official product list includes Hat Proto and double-sided tape. Does it include an M5StickC controller? No. The official product list does not include an M5StickC controller.