Spresense SDK Release Notes

Feature improvement is available

[Audio] Reduced the boot time of DSP Codec binary in SPI-Flash.

[Build] Support for using a user name with multi-byte code in a Windows environment.

Feature improvement is available.

Fix minor bugs.

Feature improvement is available

This release has a new bootloader which have to be loaded before use.

[Audio] Add a framework for implementing Voice recognition with another CPU core.

[System] Improved transfer speed in Zmodem.

Feature improvement is available.

[GNSS] Improve GNSS sensitivity when SD card is inserted(without accessed).

*In addition to Ubuntu, Windows and macOS are officially supported as development environment. *
For details, refer to the Spresense SDK Getting Started Guide (CLI).

New features and feature enhancements are available.

This release has a new bootloader which have to be loaded before use.

[Audio] Add a framework for implementing signal processing of microphone input with another CPU core.

[Math] Supported the Math library(Newlib).

[GNSS] Fixed the problem that GNSS positioning can not start immediately after system startup.

[SD] Improved the access performance of the SD card.

[Audio] Updated a sample (audio_recorder) to perform DSP filtering in MicFrontend.

New features and feature enhancements are available.

This release has a new bootloader which have to be loaded before use.

[GNSS] Support to output "DC Report" ($QZQSM) from NMEA sentences.

[GNSS] Improve stability when starting positioning by using hot start.

New features and feature enhancements are available.

This release has a new DSP binary and bootloader which have to be loaded before use.

[AI] Support Multicore DNN Runtime.

[Sensor] Add "step-counter" with Activity Recognition.

[Sensor] Add a pressure sensor driver for "BM1383AGLV" on Rohm Add-on board.

[Image] Add "libjpeg" library for JPEG decode.

[Network] Add mbedTLS version 2.6.0.

[Tool] Improve the progress bar when uploading your application.

[Graphics] Add NX Graphics example applications.

New features and feature enhancements are available.

[Camera] Support Gamma correction.

[Audio] Support I2S output with Object Level API.

No new update in this release for this repository.

New features and feature enhancements are available.

[Audio] Support 192kHz/48kHz sampling, 24bit wav recording.

[Audio] Support selectable api for audio analog drive power for AC-out or speaker-out.

[Camera] Support auto exposure and manual exposure time setting.

[Camera] Support still picture with specified number of burst capture.

New features and feature enhancements are available.

This release has a new DSP binary and bootloader which have to be loaded before use.

[Camera] Capturing of uncompressed and JPEG compressed image data by using ISX012 camera module.

[DNNRT] Deep Neural Network runtime library added.

[GNSS] Japanese GNSS satellite QZSS Michibiki: L1C/A complementation signal and L1S augmentation signal are now supported.

[Audio] Supports 88.2/96/176.4kHz, 24bit wav decoding.

[Other] ARM(tm) CMSIS library added.

[Other] PWM pins number 3, 5, 6, 9 are changed to stay high just after startup.

[Other] PWM sample application added.

[Other] uname command in NutShell now shows SDK version.

Some audio advanced features are released.

Support monaural sound playback in WAV format file.