The HelloWord 75 (Hanwen 75) mechanical keyboard is a Lego-structured mechanical keyboard. The keyboard uses independent module combinations. There is a multi-functional scene interaction module on the left that can replace various custom components. By default, it uses dynamic components with an e-ink screen and FOC force feedback knob. It uses keyboard firmware and module firmware based on the ARM Cortex-M chip. The keyboard body uses shift registers to achieve optimized key scanning circuits. Modules and keyboard bodies can be used independently or communicate and call each other through a serial protocol.

Features:

- Gasket structure- High-fidelity typing sound achieved using porous cotton- Size: 380mm*142mm*51mm- Material and surface treatment: - 6061 aluminum - Lighting element PC material- Connection: USB-C- Layout: 75%- 1.2mm thickness flexible cut PCB

- Keyboard top shell *1- Keyboard bottom shell *1- Wheel top shell *1- Wheel bottom shell *1- Module top shell *1- Module bottom shell *1- Buttons *2- Button caps *1- OLED screen *1- E-ink screen *1- 2204 brushless motor *1- Main PCB *1 and 9 other PCBs- Some screws