v2.35

2.35 (2026-05-03)

Fixed

• Try to connect to other WiFi access points besides the strongest one (including hidden SSIDs if the corresponding option is enabled). #326
• Do not abort the EiBi download process immediately https://github.com/esp32-si4732/ats-mini/discussions/325.

v2.34

2.34 (2026-05-01)

Added

• "PSRAM not detected" fatal error screen (shown if a wrong f/w variant was flashed).
• Add E serial command that emulates encoder short press.
• Add F serial command to tune directly to a frequency in Hz within the current band. In SSB modes, sub-kHz digits set the BFO as well.
• Experimental Bluetooth LE control is available under Settings->Bluetooth: use Ad hoc for the BLE remote-control protocol, or HID to connect supported Bluetooth remotes/keyboards for tuning and menu actions. It may be unstable.
• Experimental support for LILYGO T-Embed SI4732, see https://esp32-si4732.github.io/ats-mini/hardware.html#lilygo-t-embed-si4732 for more details.

Changed

• Abort the long running operations (Seek, Scan, EiBi) via any remote command
• Change the set theme serial command from ! to ^.
• Drop workaround for espressif/arduino-esp32#11742. Use faster method (WiFiMulti) to connect to 2-nd or 3-rd configured access point.
• Remote control over USB serial port is disabled by default. To enable it, go to Settings->USB Port and set it to Ad hoc mode.

Fixed

• Add an exhaustive (hopefully) list of UTC offsets. WARNING: please adjust your UTC offset again (the stored index is no longer valid). #287
• Fix out of range menu controls due to fast encoder rotation.

v2.33

2.33 (2025-09-22)

Changed

• Adjust gamma for display ID 0x04858552 so the themes look closer to how they were designed (at least Orange now doesn't look like a lemon).

v2.32

2.32 (2025-09-16)

Removed

• Remove the dynamic CPU frequecy feature introduced in v2.31 (it caused sound artifacts when rotating the encoder). #244
• Do not show the "Add" hint on an empty memory slot to prevent confusion with click vs short press.

Changed

• Avoid drawing background color when drawing text. This dramatically helps UI customization modding efforts (like setting a background image instead of a plain color, for example). #239
• Move the Web UI credentials form fields below the Wi-Fi settings. #241

Fixed

• Fix Wi-Fi connection issue to 2nd or 3rd access point configured on the settings web page. #244

v2.31

2.31 (2025-09-13)

Removed

• Remove faster tuning in Seek mode on SSB and in Scan mode via press & rotate in favor of the new accelerated encoder control.
• Remove the ENABLE_HOLDOFF compile-time option.

Added

• Encoder acceleration.
• Encoder click now cancels the EiBi schedule download process.

Changed

• Reduce the upper CB band limit to 28MHz. #205
• Independent USB/LSB calibration values. WARNING: this change will reset the bands settings. #220
• Render partial frequency numbers on the tuning scale around screen edges. #235
• Disable the Memory menu timeout (it is a surfing mode like Seek or Scan). Short press (0.5 sec) saves/clears a slot, click closes the menu.
• EXPERIMENTAL: overclock the I2C bus to 800kHz (affects Si4732).
• Set CPU freq to 240 MHz on encoder rotation, drop back to 80 MHz after 10 seconds of no activity. This results in snappier UI.

Fixed

• Fix AVC wrapping to avoid selecting odd AVC values. #207
• Add 100ms delay after Si4732 POWER_ON to fix the "Si4732 not detected" issue #213
• Fix misbehaving squelch when changing bands.

v2.30

2.30 (2025-08-07)

Added

• Add Scan mode. Press the encoder for 0.5 seconds to rescan, press & rotate to tune using a larger step. The scan process can be aborted by clicking or rotating the encoder.

Changed

• Switch from EEPROM to Preferences library to store the receiver settings. This change removes some old limitations and enables more flexible settings management. WARNING: upgrading to this firmware version from an older one will reset the settings. Also a forced reset might be required (hold the encoder and power on the receiver). #94
• Mute audio amp during seek action to prevent audible artifacts. #190
• Display "Loading SSB" message in the zoomed menu area.
• Extend the 16m broadcast band a bit to include CRI on 17490.
• Increase the number of memory slots to 99.

Fixed

• Do not lose SSB sub kHz digits when storing Memory slots. #109
• Restore saved bandwidth.
• Use default step when switching modes or memories.

v2.28

2.28 (2025-07-01)

Added

• Add UTC+5:30 offset for India (Asia/Kolkata). Users with offsets greater than 5:30 might need to readjust their timezone settings (menu indexes have been shifted).
• Enable PSRAM using different build artifacts for OSPI and QSPI ESP32-S3 modules. For more info see https://esp32-si4732.github.io/ats-mini/flash.html#firmware-files.

Changed

• Much better seek sensitivity (SI4735 library patch by @zhang-chong). #129
• 200kHz FM step now uses odd frequencies (99.1, 99.3, etc). #161

Fixed

• Fix loud clicks when changing bands/modes on the PCB version without the mute circuit. #103
• Do not shadow station names by zoomed menu in the seek mode. #157

v2.27

2.27 (2025-06-07)

Added

• Allow connecting to the receiver's web UI using the atsmini.local mDNS name in addition to an IP address. #145

Changed

• Disable Seek mode (menu) timeout.

Fixed

• Clear RSSI, SNR, and station name when doing normal Seek. #146
• Fix backwards EiBi seek from 30000kHz.

v2.26

2.26 (2025-06-02)

Added

• Show DHCP-assigned IP address on the About system screen.

Fixed

• Fix crash when trying download the EiBi schedule in offline mode. #132
• Fix timeout when connecting to Wi-Fi access points.

v2.25

2.25 (2025-05-31)

Removed

• Disable EEPROM backup/restore option on the settings web page. If you used this feature to restore the EEPROM and now see strange bugs when switching bands, please reset the receiver settings.

Fixed

• Fix blinking RDS and static frequency name.