core

• add regmap package to facilitate heapless driver development
• PinInput+PinOutput HAL (#753, reloaded) (#795)
• Add Device8I2C/SPI types and their logic (#801)

new devices

• bno8x
  • Add support for CEVA BNO08x 9DoF sensor (#809)
• hineyhsc
  • Add Honeywell HSC TruStability SPI+I2C pressure sensor driver (#799)
• p25q16h
  • added support for P25Q16H flash chip for xiao-ble target
• si5351
  • add support for si5351 (#810)
• w25q80dv
  • added support for W25Q80DV flash chip for xiao-ble target
• w5500
  • initial version the driver (#788)

enhancements

• ds3231
  • DS3231 Alarm features (#805)
• general
  • add simplest driver ports
• lis3dh
  • add Update and Acceleration calls
  • use correct error handling and make configurable
• lsm9ds1
  • avoid unnecessary heap allocations
• pixel
  • add Grayscale2bit color (#817)
• scd4x
  • add support for SCD41 single-shot measurements
  • remove dead code
  • update package to use standard methods
• si5351
  • add many missing functions needed for convenient use.
• ssd1xxx
  • break dependency from machine package (#812)
• test
  • Add TestImageRGB888 and TestImageRGB555

bugfixes

• quadrature
  • add RP2350 to quadrature_interrupt.go
• pixel
  • correct logic error in image size checks in pixel's tests
  • correct logic error in image size checks in pixel's tests (Monochrome)
  • correct RGB555 to RGBA conversion logic