Model 209 Application Firmware

File Name: M209v2r07.stm

Version History:

Version: 2.07
Release Date: 18-Jun-2026
Description: Adds support for Model 209-U (upside-down version of Model 209). Configurable in STcontroller v4.07.00 and later.

Version: 2.06
Release Date: 28-Aug-2025
Description: Improves communication between MCU and Ultimo.

Version: 2.05
Release Date: 05-Aug-2025
Description: Improves Talkback button orange state coloring.

Version: 2.04
Release Date: 29-Jul-2025
Description: Engineering release. Fixes device specific settings command response with correct variable for main output status.

Version: 2.03
Release Date: 16-Jul-2025
Description: Fixes bug where MCU would not respond to get device specific settings command.

Version: 2.02
Release Date: 13-Feb-2025
Description: Improves communications between MCU and Ultimo integrated circuit. Resolves several bugs that were related to LED status display.

Version: 2.01
Release Date: 07-Mar-2024
Description: Fixes bug where Phones Level would always initialize at minimum. Improves settings recall from EEPROM.

Version: 2.00
Release Date: 20-Oct-2023
Description: Adds VenueView support. Fixes bug where encoder position and mic level meter LEDs would not light. Requires STcontroller v3.11.27 and later.

Version: 1.05
Release Date: 21-Nov-2022
Description: Updates Talkback Button color and flash pattern with Disabled button operation. Corrects initialization of the Latching - Mutes Main Output button operation.

Version: 1.04
Release Date: 19-Jan-2022
Description: Corrects a few nasty bugs. Operation of unit is now more stable in all configurations.

Version: 1.03
Release Date: 29-Jul-2021
Description: Removes "Adjustable" Sidetone Level selection. Adds Local Sidetone Level Adjustment, which can be enabled or disabled from STcontroller v3.04.05 and later. This update may require the unit to be reset to factory defaults.

Version: 1.02
Release Date: 23-Jun-2021
Description: Adds Talkback button LED indication when engaging the Talkback channel in Momentary - Doesn't Mute Main Out and Latching - Doesn't Mute Main Out Operational Modes.

Version: 1.01
Release Date: 18-Jun-2021
Description: Adds automatic configuration status message transmission to support simultaneous operation of multiple STcontroller sessions. Updates the Factory Default settings for Microphone Input Gain and Sidetone Mode. Adds new Talkback Button Modes and Tally Output Operating Mode. Improves the reliability of the rotary encoder. Adds configurable attenuation to Dante Receive channels Headphone Ch1 and Headphone Ch2 via UDP commands. Contact support for more information.

Version: 1.00
Release Date: 05-Apr-2021
Description: Initial Release. Configurable in STcontroller v3.02.00 and later.
