May 2, 2025 - New Sensors

Convert all piano hammer position sensors to the latest hardware design.

November 29, 2024 - First Independent Build

A second open-hybrid-piano, directly from GitHub artifacts. Independent validation I got everything pushed to GitHub correctly. 

April 21, 2024 - Accuracy Improvement Improve note-to-note consistency.

Eliminate trimming resistors (see above: continued to use many of old sensors until May 2, 2025).

November 26, 2023 - Open Source Hybrid Piano, Digital Architecture

Finished pushing all files to the repository.

November 10, 2023 - Finish "Stem Piano G"

First time a full 88 key piano with the simpler architecture is functional. This is the architecture on GitHub on Nov 26, 2023 and documented on GitHub.

March 16, 2023 - First 88 Key Piano

First time my full 88 key piano is functional, including pedals. Built from a mix of two architectures. Neither of these designs is presently in use. But they remain interesting for future development.

March 7, 2023 - Single Board Architecture

First piano subset for the single board architecture.

January 15, 2023 - Pedals First working with three pedals.

July 8, 2022 - High Performance Architecture

First piano subset with the high performance architecture.  Expensive and complex.

January 2, 2022 - Started Open Source

Created repository.

July 24, 2021 - Eight Piano Keys

My first working piano with more than one note.

June 11, 2021 - First Datapath

Full data path is functional, one note.

December 5, 2020 - Start Project