PIANO is a application base related to music or sound performing. Comes with two touch sensors(TS20) which communicate with M5 core via I2C protocol (address is 0x6A and 0x7A).
Documents and useful links
M5PIANO.ino
By Boris Landoni
Boris Landoni is the technical manager of Open-Electronics.org. Skilled in the GSM field, embraces the Open Source philosophy and its projects are available to the community.