Wireless Hall Effect 36-key split keyboard. Analog sensing, rapid trigger, depth-based home row mods, 1ms LLPM wireless.
Status: Prototyping (All parts necessary for prototyping delivered; learning how to solder)
| Layout | Chocofi 36-key (5x3+3 per half), MX hotswap |
| Switch | Owlab Ti HE 40g |
| Sensor | Allegro A1304, 1 per key |
| MCU | nRF52840 (SuperMini) |
| MUX | 3x CD74HC4051 per half |
| Wireless | BLE LLPM 1ms via XIAO nRF52840 dongle |
| Battery | 703040 LiPo 750mAh per half |
hallmark/
├── docs/
│ ├── architecture.md # System design, components, block diagram
│ ├── phases.md # Development phases post-prototyping
│ ├── firmware.md # Technology choices and planned modules
│ ├── hall-effect.md # Sensor/switch specs, ADC, design considerations
│ ├── components.md # Bill of materials
│ ├── references.md # Datasheets and links
│ └── glossary.md # Acronyms and terms
├── firmware/ # Zephyr application (C)
├── hardware/
│ ├── pcb/ # PCB design (KiCad)
│ └── case/ # Case design files
├── prototyping/ # 6-stage breadboard validation plan
└── images/ # Photos, renders, diagrams
- Architecture -- system design, components, block diagram
- Phases -- development phases post-prototyping
- Firmware -- technology choices and planned modules
- Hall Effect -- sensor/switch specs, ADC, design considerations
- Components -- bill of materials
- Prototyping -- 6-stage validation plan with pass/fail criteria
- References -- datasheets and links
- Glossary -- acronyms and terms
See GitHub Issues for task tracking and progress.