Description Unit Proto is a versatile prototyping board unit for M5Stack projects. The Unit Proto lets you freely design small circuits on the board and connect them to an M5Core through the HY2.0-4P port. If your project needs simple circuit expansion with a reliable protective casing, the Unit Proto provides a compact 2.54mm prototyping area, 77 drilled holes, and LEGO-compatible mounting holes for quick hardware experiments. Features Unit Proto board for free circuit design and M5Stack hardware prototyping. HY2.0-4P port connection for use with M5Core. 0.039 inch / 1mm CNC-drilled hole size. 0.1 inch / 2.54mm hole spacing for standard prototyping layouts. 77 holes for compact custom circuit expansion. 2 x LEGO-compatible holes for mechanical mounting. Specifications Specification Parameter Interface HY2.0-4P port Hole Size 0.039 inch / 1mm, CNC drilled Hole Spacing 0.1 inch / 2.54mm Number of Holes 77 holes Mounting 2 x LEGO-compatible holes Product Size 48.0 x 24.0 x 8.0mm Product Weight 5.0g Package Size 139.0 x 93.0 x 10.0mm Gross Weight 17.0g Applications Prototype small custom circuits for M5Stack projects. Add simple expansion circuits to an M5Core system. Create protected experimental hardware modules with the Unit Proto form factor. Build compact test fixtures, signal routing boards, or custom interface circuits. Product List 1 x Unit Proto 1 x HY2.0-4P Grove Cable (20cm) Other Content Prototyping Layout The Unit Proto uses 2.54mm hole spacing, making it suitable for common through-hole parts and simple wiring experiments. The 77-hole area gives enough room for compact signal conditioning, adapter, or connector circuits. Mechanical Integration With the HY2.0-4P port and LEGO-compatible holes, the Unit Proto can be connected and mounted in M5Stack builds while keeping the custom circuit inside a compact, protected unit-style format. Resources Unit Proto product document Unit Proto schematic PDF Proto board schematic image Unit Proto model size PDF Proto board model size image Unit Proto PDF document FAQ What is Unit Proto used for? The Unit Proto is used to build small custom circuits and connect them to an M5Core through the HY2.0-4P port. How many holes does the board provide? The board provides 77 holes with 0.1 inch / 2.54mm spacing. Can Unit Proto be mounted mechanically? Yes. The Unit Proto includes two LEGO-compatible holes for mechanical mounting in M5Stack projects. What cable is included? The package includes one HY2.0-4P Grove Cable (20cm). Is this suitable for standard through-hole prototyping? Yes. The 2.54mm hole spacing makes the Unit Proto suitable for many common through-hole components and wiring layouts.
