[Prototeype] coron44bt

This product is a beta version. The design and specifications may differ from the retail version.

coron44bt is a wireless row-staggered keyboard with a 25mm trackball at the center. The trackball sensor is PMW3610 and runs on ZMK firmware. It comes with a dedicated 3D printed case.

Features

• The trackball is located at the center, allowing users to access the ball with minimal hand movement.
• The softness of the keystrokes can be adjusted with a simplified O-ring mount.
• Row-staggered compact layout
• ZMK firmware
  

What's included

• PCB
• Sensor PCB
• Switch plate
• Slide Switch
• Reset switch
  
• Mouse Sensor (PMW3610)
• M2 screw 3mm x 18
• M2 screw 8mm x 2
• M2 spacer 3.5mm x 8
• Roller bearings x 3
• Stainless steel rod x 3
• Silicone Tube
• Flat Cable
• Rubber feet x 4
• 3D Printed Case
• 3D Printed Ball Case (Base and Cover)

What you need separately

• XIAO nRF52840 Plus
• Trackball (25mm)
• 44 switch sockets
• 44 key switches
• 44 keycaps
  
• USB Type-C Cable
• Lipo battery (with connector)

Build Guide

Before purchasing, please assemble the product and check the assembly procedure to ensure you have all the tools necessary for the process.

https://github.com/aki27kbd/coron44bt/blob/main/doc/buildguide.md

Firmware

It works with ZMK firmware. A Github account is required to update the firmware. (tentative)

https://github.com/aki27kbd/zmk-config-coron44bt

Precautions

• This kit requires soldering. Please read the build guide carefully before considering purchasing.
• Due to manufacturing errors, 3D printed parts may be difficult to fit or may be loose.
• 3D printed parts may have tiny chips or scratches of about 1mm.
• Lipo batteries pose a risk of fire. Please handle them with care. We are not responsible for any accidents caused by improper handling.
• Specifications are subject to change without notice.
• If there is anything missing or defective in the package, please contact us within one week of arrival .

Please feel free to let us know your opinions and thoughts about this product.

Hashtag #coron44bt