Overview

New functionality for DMA-driven, asynchronous Wire and SPI operations. Update SPI displays or I2C peripherals without busy-waiting on them.

New functionality for Bluetooth audio (A2DP). A2DP Source (output) and A2DP Sink (input) supported with examples.

LWIP crash-on-ping-response fixed, and checksum operations sped up.

Bluetooth

• Add A2DP sink (speaker) support (#2177)
• Add Bluetooth audio out (A2DP) on the PicoW (#2174)

Asynchronous I/O (DMA-driven)

• Add asynchronous I2C read and write operations (#2167)
• Add asynchronous SPI transactions (#2168)

Networking (LWIP)

• Use custom LWIP checksum for ~13% faster checksums (#2172)
• Fix LWIP crash on unexpected ping packets (#2159)
• Protect againt calling LWIP_Ethernet::begin twice (#2158)

SDFS speedup

• Update SDFat to use array transfers (#2164)

New boards and minor changes

• Add Newsan Archi board (#2169)
• Add SPI::setMOSI/setMISO, better match pin names (#2166)
• Fix StaticMulticore-FreeRTOS.ino (#2161)