look at https://github.com/Hack-a-Day/2022-Supercon6-Badge-Tools
Is matrix led ideal for show 'memory', and 'screen and keys (similar, ready alphanumeric keyboard, and )
meybe add a normal keyboard for input data.
And repository for open source programs ;D or barcode reader for programs from paper or screen phone
look at https://github.com/Hack-a-Day/2022-Supercon6-Badge-Tools
Is matrix led ideal for show 'memory', and 'screen and keys (similar, ready alphanumeric keyboard, and )
meybe add a normal keyboard for input data.
And repository for open source programs ;D or barcode reader for programs from paper or screen phone