2023-09-17 (Su) EWC_Cyberdeck Right-hand keyboard

I struggled with the design of the right-hand side of the keyboard. I decided it should be removable to stretch my arms while typing. I built split keyboards before and enjoyed typing with them. I selected a 4-conductor headphone wire to link the halves, carrying serial data about the right side. I was going to use three PCF8574P IO expanders, but I settled on two of them and an Arduino Micro. With the microcontroller, I can add an addressable light bar and use the built-in USB port to plug this into any computer and act as a keyboard. To maintain functionality, it will simultaneously send UART serial data and keyboard functions to different ports.
Keyboard on right side

The rest of the posts for this project have been arranged by date.
First time here?

Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10

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