DSPi Firmware v1.1.5-beta3

New features

• Multichannel USB input (2/4/6/8 channels) -RP2350.
• Multichannel I2S input (2/4/6/8 channels) with configurable data pins.
• Bulk Output: Mirrors all output channels via ADAT - RP2350.
• Comprehensive onboard test signal generator with 15 signal types.
• Channel identification via little chirps that enable immediate identification of physical outputs.
• Control Surfaces: Buttons, potentiometers, encoders and LEDs can be connected to GPIO and assigned to any parameter
• Control Interfaces: UART and I2C support, with async notifications via UART.
• Source-specific default names for input channels.

Bugs Squashed

• Fixed full-volume noise when editing External Mute Control settings.
• Fixed global EQ bypass incorrectly gating output on RP2040.
• Major SRAM optimization, freeing 80KB on the RP2040 and 180KB on the RP2350.

Behavior changes

• I2S input data pins now default to GPIO 1/2/3/4.
• UART moved from GPIO 12 to GPIO 16/17 (TX/RX).