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Changelog

All major changes to Shelly BLU Devices API Docs will be reflected here.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

For BLU devices, based on Silabs MG27 chipset (BLU TRV), refer to Changelog MG27

[1.0.22] 2025-03-14​

Changed​

  • Button press event is not sent automatically after device reboot. The reconnection after software reboot is fixed with latest mobile applications
  • Remove completely PIN bonding. Pin code during encryption and decryption is only used to authenticate decryption
  • Change button hold event to 0x80 as is in BTHome official documentation

Fixed​

  • Button Fix beacon mode stop after button press
  • Manually set encryption key was not applied, nor stored in flash memory.
  • Avoid double pairing request from debug mobile applications

[1.0.21] 2025-02-13​

Changed​

  • Increase delay after setting encryption key for DW, HT and button
  • Deprecate PIN bonding
  • Remove rebonding attempt before closing connection
  • Prevent deleting missing bonding information if not in pairing mode
  • Prevent connection from not bonded devices if not in pairing mode
  • Motion: Recalibrate LUX values based on devices from mass production

Added​

  • Add second pairing attempt if bonding is deleted in pairing mode only
  • Set reset cause before restart

Fixed​

  • Delay device reboot if button is pressed (avoid accidentaly entering bootloader)
  • Fix fw_id reported on boot
  • DW: Increase battery measurement period and fix FW send counter initialisation
  • Motion: Reset blue led flash counter on connection open
  • Various fixes to work with shelly app flawlesly
  • Fix encryption freeze by changing reboot function to use BURTC timer in EM4 mode

[1.0.20-rc8] 2024-09-27​

Changed​

  • Send LUX data with button event
  • Wall EU Change public device name. Short device name from advertising includes 4 digits of mac address.
  • Wall US Change public device name. Short device name from advertising includes 4 digits of mac address.
  • HT Increase number of packets in every advertising
  • Remove redundand dependency to LF quartz.
  • Align beacon timings for DW and Motion to HT
  • Restart connection timeout on gatt write

Added​

  • DW Add report angle threshold setting
  • Allow encrypting without PIN setting

Fixed​

  • Add temperature compensation for correct battery measurement
  • DW Fix beacon mode in open window state
  • Motion Restore sensor settings after WatchDog reset
  • HT Fix clearing pairing flag in scan response

[1.0.19] 2024-06-19​

Changed​

  • Wall EU Change public device name. Short device name from advertising includes 4 digits of mac address.
  • Wall US Change public device name. Short device name from advertising includes 4 digits of mac address.

[1.0.18] 2024-05-15​

Added​

[1.0.16] 2024-04-08​

Fixed​

  • Add temperature compensation for correct battery measurement
  • DW Fix beacon mode in open window state
  • Motion Restore sensor settings after WatchDog reset

[1.0.15] 2024-03-21​

Fixed​

  • DW Fix battery measurement
  • Motion Fix battery measurement

Changed​

  • Button Limit buzzer sound level to extend battery life. Use max power only for Find Device if battery > 70%
  • Motion Motion maximum sensitivity changed to balance between range and stability

Added​

  • Send firmware version on device boot/reboot and 4 times a day
  • Activate Hardware Watch Dog and Radio Watch Dog
  • HT Official support for Shelly BLU H&T

[1.0.13] 2024-02-27​

Changed​

  • Extend lux meter calibration table with more points for smoother readings
  • Motion Motion maximum sensitivity reduced to avoid oscillations

[1.0.12] 2024-02-17​

Fixed​

  • Fix automatic connection to devices after encrypt/decrypt procedure
  • Motion Fix missing bonding after Encrypt/Decrypt
  • DW Fix buffer overflow with encrypted devices

Added​

  • Motion Motion test mode - add advertising for every motion

[1.0.11] 2024-02-09​

Added​

  • Button Add setting for multiclick delay in 6 steps

[1.0.9] 2024-01-15​

Added​

  • Motion Measure light at end of motion
  • Motion Use motion sensitivity look up table
  • Advertise firmware version 4 times a day and on boot

Changed​

  • DW Increase debouncing
  • Change beacon packets timing: 4 pulses, 150mSec delay
  • Decrease button hold power consumtion for all devices
  • Change advertising timing to 20mS/1Sec

[1.0.8] 2023-07-24​

Added​

  • Beacon mode for all devices. Send a single packet and start immediately after power on
  • Motion Measure light at end of motion
  • Motion Use motion sensitivity look up table

Fixed​

  • Fix measure battery calls
  • Disconnect gracefully before reboot

[1.0.7] 2023-06-12​

Changed​

  • Change advertising period and duration to 50mS/2Sec
  • Require encryption for reading Encryption key characteristic

Added​

  • Motion Full support completed
  • Send button press event for all devices

Fixed​

  • Fixed device going to OTA after encryption
  • Improved reset function

[1.0.6] 2023-05-22​

Added​

  • Require encrypted connection even from bonded devices

[1.0.5] 2023-05-03​

Added​

  • Enable setting of Unixtime for all devices
  • Keep bonding to the connected device when changing encryption key

[1.0.4] 2023-04-04​

Added​

  • Add button hold event

[1.0.2] 2023-02-23​

Added​

  • Add BTHome sample data as GATTT characteristic
  • Enable bonding without password if default password is set
  • DW Fix window opened state

Fixed​

  • Button Fix long push advertising
  • DW Fix window opened state

[1.0.1] 2022-12-20​

Fixed​

  • Button Fix long push advertising
  • DW Fix window opened state

[1.0.1] 2022-12-16​

  • First version released