We are happy to announce a new firmware update for BleuIO Pro, version v1.0.5.6. This release introduces improved control over connection behavior, expanded command functionality, and important stability enhancements to ensure a more reliable development experience.

Below is an overview of what’s new and improved in this firmware update.

New Auto Reconnect Control

One of the key improvements in this release is the ability to enable or disable the auto reconnect feature.

Previously, auto reconnect was always enabled. This meant the dongle would automatically attempt to reconnect to a target device if a disconnect event occurred immediately after connection, specifically with disconnect reason 0x3E (Connection failed to be established).

With firmware v1.0.5.6, users now have full control over this behavior.

New Commands:

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

By default, auto reconnect remains enabled to preserve existing behavior, but developers can now turn it off when more precise connection handling is required.

Read-Back Support Added to Multiple Commands

This update adds read functionality to several AT commands that previously allowed configuration changes but did not provide a way to read back their current state.

This enhancement improves transparency and makes it easier to verify configuration during runtime or debugging.

Commands with New Read Support:

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

With these additions, developers can now query the current settings directly from the dongle, resulting in better control and easier diagnostics.

Stability Improvements

Firmware v1.0.5.6 also includes several internal improvements aimed at making BleuIO Pro more robust and reliable.

Key Enhancements:

• Fixed multiple issues that could cause unexpected dongle reboots
• Improved internal connection state handling
• Enhanced overall firmware stability during connection and disconnection events

These changes help ensure smoother operation, especially in applications with frequent BLE connections.

Firmware v1.0.5.6 for BleuIO Pro introduces several important improvements that enhance both usability and reliability. This release gives developers direct control over the auto reconnect functionality, allowing it to be enabled or disabled based on application needs. It also adds read-back support to many commonly used AT commands, making it easier to verify current settings and improve debugging workflows. In addition, overall stability has been improved through better internal connection state handling and fixes for issues that could previously cause unexpected dongle reboots.

We recommend updating to this latest version to take advantage of the new features and reliability improvements.

For download instructions and update guides, please visit the BleuIO Pro firmware update section on our support page.