HexadecipadV2

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README

HexadecipadV2

A fully customizable macro pad with 24 mechanical switches and 4 rotary encoders, designed with KiCAD and featuring an little baby RP2040 microcontroller.

Overview

HexadecipadV2 is hackpad designed for the blueprint/hackpad ysws. I spent about 6 hours pulling my hair out over case design before I knew what I was doing... ps. I still have no idea what I'm doing.

Key Features:

24 hot-swap MX-compatible mechanical switches (oops)
4 rotary encoders for volume control, scrolling, or custom functions (more oops)
Seeed Studio XIAO RP2040 microcontroller
MCP23017 I/O expander because XIAO RP2040 is little baby.
Open-source KiCAD design because i broke.
3D-printed case 👍
Too many inputs. checked with Blueprint Support, they said its fine as long as I pay.
Too big pcb (100mmx130mm) also checked with Blueprint staff.
Fully custom vibe coded garbage script that send serial to a python script on my pc so we can modify keys without having to use stupid kmk.

Project Structure (just the READMEs for when you access on github.io)

HexadecipadV2/
├── CAD/                     # Case and mechanical design files
│   └── README.md            # CAD file documentation
├── Firmware/                # Source firmware code
│   └── README.md            # Firmware documentation
├── PCB/                     # KiCad PCB design files
│   └── HexadecipadV2/       # Main PCB project
│       └── README.md        # PCB documentation
├── Production/              # Manufacturing-ready files
│   ├── CAD/                 # STL files for 3D printing
│   │   └── README.md        # 3D printing guide
│   ├── Firmware/            # Production firmware
│   │   └── README.md        # Firmware installation guide
│   ├── PCB/                 # Gerber files for PCB fab
│   │   └── README.md        # PCB ordering guide
│   └── README.md            # Production overview
└── Other files/             # Supporting files
    ├── 3d models/           # Component STEP models
    │   └── README.md        # 3D models documentation
    ├── images/              # Documentation images
    │   └── README.md        # Images documentation
    └── README.md            # Other files overview

Links and stuff

CAD Files - Case design and mechanical files
Firmware - Source code and development files

Comments

HexadecipadV2

A fully customizable macro pad with 24 mechanical switches and 4 rotary encoders, designed with KiCAD and featuring an little baby RP2040 microcontroller.

Overview

HexadecipadV2 is hackpad designed for the blueprint/hackpad ysws. I spent about 6 hours pulling my hair out over case design before I knew what I was doing... ps. I still have no idea what I'm doing.

Key Features:

24 hot-swap MX-compatible mechanical switches (oops)

4 rotary encoders for volume control, scrolling, or custom functions (more oops)

Seeed Studio XIAO RP2040 microcontroller

MCP23017 I/O expander because XIAO RP2040 is little baby.

Open-source KiCAD design because i broke.

3D-printed case 👍

Too many inputs. checked with Blueprint Support, they said its fine as long as I pay.

Too big pcb (100mmx130mm) also checked with Blueprint staff.

Fully custom vibe coded garbage script that send serial to a python script on my pc so we can modify keys without having to use stupid kmk.

Project Structure (just the READMEs for when you access on github.io)

HexadecipadV2/ ├── CAD/ # Case and mechanical design files │ └── README.md # CAD file documentation ├── Firmware/ # Source firmware code │ └── README.md # Firmware documentation ├── PCB/ # KiCad PCB design files │ └── HexadecipadV2/ # Main PCB project │ └── README.md # PCB documentation ├── Production/ # Manufacturing-ready files │ ├── CAD/ # STL files for 3D printing │ │ └── README.md # 3D printing guide │ ├── Firmware/ # Production firmware │ │ └── README.md # Firmware installation guide │ ├── PCB/ # Gerber files for PCB fab │ │ └── README.md # PCB ordering guide │ └── README.md # Production overview └── Other files/ # Supporting files ├── 3d models/ # Component STEP models │ └── README.md # 3D models documentation ├── images/ # Documentation images │ └── README.md # Images documentation └── README.md # Other files overview

Links and stuff

CAD Files - Case design and mechanical files

Firmware - Source code and development files

#	References	Value	Footprint	Quantity
1	R1, R2	R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	2
2	D1–D28	D	D_DO-35_SOD27_P7.62mm_Horizontal	28
3	U1	XIAO-RP2040-DIP	XIAO-RP2040-DIP	1
4	U2	MCP23017_SP	DIP-28_W7.62mm	1
5	SW5–SW28	SW_Push_45deg	MX-Hotswap-1U	24
6	SW1–SW4	Encoder	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	4
7	N/A	M3x16mm screws	N/A	4

HexadecipadV2

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HexadecipadV2

Overview

Project Structure (just the READMEs for when you access on github.io)

Links and stuff

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HexadecipadV2

Overview

Project Structure (just the READMEs for when you access on github.io)

Links and stuff

Screenshots

Hackpad

Schematic

PCB

Case Assembly

Bill of Materials (BOM)

Design Files

Firmware

License

Contributing