We are excited to announce the release of BleuIO Firmware v2.7.9.29, a significant update focused on improving connection stability, enhancing user control, and expanding the range of readable system states. This release introduces new functionality requested by developers, further strengthens internal reliability, and resolves rare—but important—edge cases in JSON output handling.

With this update, BleuIO becomes more transparent, responsive, and configurable than ever.

What’s New in v2.7.9.29

In previous versions, the auto reconnect function was always active. It automatically attempted to reconnect whenever the dongle received a disconnect event with reason 3E – “Connection failed to be established”.

With v2.7.9.29, developers now have direct control over this behavior through a new command:

• ATAR0 – Disable auto reconnect
• ATAR1 – Enable auto reconnect (default)

This allows applications to fine-tune how the dongle responds to failed or dropped connections, offering more flexibility across a variety of use cases.

Expanded Readback Functionality

Transparency and configurability are essential for development and debugging. This update introduces read functions for a number of commands that previously could not report their current state.

The following commands now support readback functionality:

• ATA
• ATAR
• ATASPS
• ATASSN
• ATASSM
• ATDS
• ATE
• ATEW
• ATSIV
• ATSRA
• ATSAT
• AT+FRSSI
• AT+SHOWRSSI

This enhancement makes it easier to query and verify configuration states during development, which is especially valuable for dynamic or complex applications.

Stability Improvements

This release includes improved handling of internal connection states, resulting in a more robust and reliable operation—particularly in environments where devices frequently connect and disconnect.

Users can expect smoother behavior, fewer edge-case issues, and more predictable Bluetooth communication.

Bug Fixes

Resolved a rare malformed JSON response occurring in verbose mode after executing the AT+GAPCONNECT command.
This fix ensures that developers relying on JSON-based parsing and debugging experience consistent and valid output.

Firmware v2.7.9.29 is designed to give developers more control, better insight, and improved reliability. Whether you’re building sophisticated BLE applications or fine-tuning device behavior, this update enhances the overall performance and experience of the BleuIO dongle.

We encourage all users to upgrade to the latest firmware to take advantage of these improvements.