Firmware Version 1.0 (August 7, 2024)
Initial release.
SonoAlti_4V_Firmware_1_0.uf2

Flash Revealer: SonoAlti_4V_16MB_Flash_Revealer.uf2
Flash Eraser: SonoAlti_4V_Flash_Eraser.uf2
SonoAlti 4V Sounds: SonoAlti_4V_Sounds.zip