Manual of the ATS-Mini, alterative firmware v. 2.30 - translation into _rus.

The main screen

• RSSI meter - indicator of the received signal strength (upper left angle), also serves to indicate mono/stereo in FM mode (one/two rows) ..
• Save settings icon (immediately after the RSSI indicator). The settings are preserved in energy -dependent memory after 10 seconds of inaction.
• Wi-Fi icon (in the upper right corner (next to the battery). Different colors display the connection condition.
• Battery condition (in the upper right corner). The voltage is not displayed during charging, see paragraph 36. The only battery indicator is the LED on the lower part of the receiver, which burns during charging.
• The name of the band and modulation (VHF and World Cup, at the top in the center). For more details, see the range of ranges.
• Information panel (field on the left), also menu. The parameters are described in the "menu" section.
• Frequency (center of the screen).
• The name of the FM radio station (RDS PS) or Frequency name (immediately under the frequency). The frequency name is displayed for some popular frequencies such as FT8, SSTV, CB channels or short wave schedule. It can also display the current menu item in a larger font if the “Menu scale” settings is enabled.
• Tuning scale (lower part of the screen). It can be replaced by additional fields of RDS (RT, PTY) when turning on the expanded RDS.

Alternative graphic interface

Differences:

• Stereo indicator is located to the right of the range and type of radiation (VHF and FM).
• Tuning scale with band boundaries (below station name). The numbers on the left and right indicate the boundaries of the band.
• Signal/noise indicator (in dB). The range is 0 ... 127, and the visual indicator displays this range linearly.
• RSSI and S-meter (number in dBmkV, indicator in S-ranking). Please note that the RSSI range is also 0 ... 127 (without negative values), and, according to these tables, any values below S4 on HF (RSSI <4) and below S7 on VHF (RSSI <2) are incorrect. Thus, these values are very far from accurate and depend on the resistance of the antenna.

Both indicators can be replaced with additional RDS (RT, PTY) fields when turning on the expanded RDS.

Control

Management is carried out by means of an encoder handle:

Direct frequency input mode

• Click and rotate the encoder to choose a step (digit or half -cypher).

• Rotate the encoder to configure the frequency.

• With a short press, synchronize the frequency with the current step.

• To get out of the regime, click on the encoder or wait a couple of seconds.

Menu

The menu can be called by pressing the encoder button, it automatically closes in a couple of seconds.

• Mode - Mode - FM (available only in the VHF range); LSB, USB, AM (available on other ranges). The receiver does not support the NFM mode (in all ranges, including CB) due to the limitations of the SI4732 chip.
• Band - Range - see list of ranges
• Volume - volume - 0 (silence) ... 63 (maximum). The volume of the headphones can be low (compared to the built-in speaker) due to restrictions on the initial design of the device. To turn off/turn on the sound, use a short press.
• Step - Step - Settings Step (not all steps are available on each range and in each modulation).
• Seek - Search - Search for a radio station up or down the frequency on AM/FM, a faster setup on LSB/USB (the hardware search function is not supported by SI4732 on SSB). Turn or click the encoder to stop the scan. A short press switches scanning and schedule modes. For manual accurate tuning, use pressing and turning.
• Scan - Scanning - scanning of the frequency range with the construction of the RSSI (S - signal) and SNR (N - signal/noise ratio) (unfortunately, these indicators are almost useless in the SSB modes due to the restrictions of the Patch SI4732). Both graphs are normalized to the range from 0.0 to 1.0. In scan mode, click the encoder for 0.5 seconds to repeatedly scan; Click and rotate the encoder to tune in with a big step. To interrupt the neglected scan, press or turn the encoder.
• Memory - Memory - 99 memory cells to preserve the chosen frequencies. Click the "Add" button on an empty slot to maintain the current frequency, a short press is erasing the cell. Switch between the saved cells, rotating the encoder. You can also edit memory cells through a sequential port or through the Google Chrome web interface (in Wi-Fi mode AP access points-approx. Transl.).
• Squelch - Noise suppressor - disconnects the speaker if the RSSI level is below the specified threshold. SSB work is unlikely. For a quick shutdown: short -term click the encoder button in the noise reduction menu mode.
• Bandwidth - Passing - Select the canal filter bandwidth.
• • AGC/Attn - AGC/ATTN - Automatic reinforcement adjustment (On/Off) or weakening level. The attenuator is not applicable in SSB mode.
• AVC - AVC - sets the maximum reinforcement factor for automatic volume control (not applicable to FM mode).
• SoftMute - Muffling - sets the maximum attenuation of soft aspiration (applicable only for AM/SSB).
• Settings - Settings - Entrance to the "Settings" menu

Settings (settings menu)

• Brightness - brightness - the level of brightness of the display (10 ... 255). The minimum level consumes about 80 mA of the battery energy, the standard - about 100 mA, the maximum - about 120 mA.
• Calibration - calibration - displacement of SSB calibration (-2000 ... 2000, to the range).
• RDS - The parameters of the radio data system RDS: PS - the name of the radio station, ct - time, rt - text, pty - genre, all (EU/US) - that's it. Please note that time can be transmitted both in the UTC format and in the local time zone, and also be completely fictitious. Synchronization of the clock is carried out only once, so you can choose the correct time source (for repeated synchronization, turn off and turn on the receiver).
• UTC Offset - Offset to UTC - The displacement of the time relative to the clock belt UTC+0. It affects the displayed time, regardless of whether it is obtained through RDS or NTP.
• FM Region - The FM Region - FM pre-emphasis correction time (in de-emphasis) constant by region (50 µs for EU/Japan/Australia and 70 µs for US).
• Theme - Theme - color theme
• UI Layout - The user interface layout - an alternative layout of the user interface. At the moment, only one alternative interface with a large S-meter and S/N-meter is available.
• Zoom menu - enlarged menu - display a coarsely current selected menu item (accessibility parameter for visually impaired).
• Scroll dir. - Scroll direction - direction of scrolling the menu for turning the encoder clockwise.
• Sleep - Sleep - an interval for an automatic transition to a sleep mode of the display in seconds (0 - the display is constantly turned on).
• Sleep Mode - Sleep mode - with "Lock": Blocked - blocking the rotation of the encoder during sleep; with "unlocked" - -out -blocked - frequency setting is allowed in sleep mode; With "CPU Sleep" - It sleep CPU - the maximum energy saving mode. When the display is turned on, the default brightness and Wi-Fi consumption is about 170 mA, without Wi-Fi-100 mA. In blocked/unlocked modes, consumption is about 70 mA, in the mode of sleep CPU - about 40 mA.
• Load EiBi - download EiBi - download the database of broadcasting radio stations EIBI (it is required to connect to the Internet via Wi -Fi).
• Wi -Fi - Wi -Fi mode - "Off" - Wi-Fi off (by default), "AP" - Access Point - built-in access point, "AP+connect" - access point and connection, "Connect" - only connection to the external Wi-Fi network. "Sync only" - only time synchronization. Read more about this below.
• About - About - information screens (certificate, authors, system).

Wi-Fi

Wi-Fi mode (only 2.4 GHz) at the moment can be used for the following purposes:

• Time synchronization according to NTP (Network Time Protocol).
• View the condition of the receiver (frequency, RSSI/SNR, volume, voltage of the battery, etc.).
• View memory cells with saved frequencies.
• The settings control of the receiver.

There are several modes:

• OFF (Off - by default)
• AP Only - Access point. The receiver creates its own access point of ATS-Mini and launches a web server at http://10.1.1.1.
• AP+Connect - Access point and an attempt to connect to one of the three tuned access points. In the case of a successful connection, the receiver will synchronize the time every 5 minutes and run the web server at http://10.1.1.1 and a dynamic IP address received from a configured access point.
• Connect-an attempt to connect to one of the three tuned access points, launch a web server on dynamic IP address and synchronization of time every 5 minutes.
• Sync only - the same as Connect, but Wi-Fi will be disconnected after successful time synchronization.

Initial setting

• Turn on the AP Only “only access point” (the receiver will be displayed by its IP-address 10.1.1 on the receiver for a short time).
• Connect to the “ATS-Mini” access point from the phone or computer. At this point of access, there is no connection to the Internet. When connecting from the phone, it may be necessary to disable the mobile data transfer and any VPN/firewall software.
• Оpen web browser and go to the following address: http://10.1.1.1. The web page of the condition should open. You can also try to enter the mDNS "atsmini.local" in the browser window.
  AP[/Columns]
• Click on the link "config" (configuration) ". Here you can add a login and password (if desired) to protect the settings page, configure Do three points of Wi-Fi access, which the receiver will be tried when turning on, and also set an hour-long belt and other parameters.
  Config[/Columns]
• After that, switch the Wi-Fi mode to AP+Connect or Connect in the receiver (a new dynamic IP address obtained from the configured access point will be displayed on the screen for a short time).
• Now connect your phone/computer to the same access point and open the new HTTP URL: // Dynamic-IP receiver to check if the receiver has connected to the Internet.
  Config 2[/Columns]

Now you can switch the modes at your discretion and connect to the receiver or through the internal access point of ATS-Mini (if it is turned on, which is especially useful when there are no access points nearby), or through the outer access point and dynamic IP address. The receiver will always listen to the mDNS address "atsmini.local".

Receiver settings available only through Wi-Fi

• Tuning Display Delay - Milliseconds time to delay the screen update when tuning/searching, 0 (disconnected) ... 255. The setting process slightly accelerates, since the screen is less common.

Frequent schedule

The receiver can load the schedule of the EIBI short -wave stations and use it to display broadcasting stations, which allows you to quickly adjust to them. Here's how it works:

• Schedule is enough to download once by Wi-Fi. It will be saved in the receiver flash memory, so it will not need to be loaded every time when the device is turned on.
• For the correct display of planned stations, you need to configure the reception room. The easiest and most economical way is to configure the Internet connection via Wi-Fi and switch it to sync only (“only synchronization”). The displacement (time zone) relative to UTC does not matter, since the receiver is synchronized according to NTP in UTC. A less reliable option is to use RDS CT, but this will need to find a station that broadcasts by UTC (and not in local time).
• After setting up, the receiver will display the names of the stations that are currently broadcast at certain frequencies (only the planned times are taken into account; the days of the week are still ignored).
• You can quickly switch between the stations using the search mode (marked with the watch badge). To switch between the modes, click on the encoder, while in the search mode.

Reset

To reset the receiver settings (the current range, frequency, favorite stations, loaded schedule, etc.):

1. Turn off the receiver
2. Click and hold the encoder.
3. Turn on the receiver
4. Release the encoder after the report of the settings reset.

The table of frequency ranges

Receiver control in the Terminal

A USB interface is available to manage and monitor the receiver. To connect to the sequential port, use Putty or Picocom. You can also open the following web terminal at Google Chrome: https://www.serialterminal.com/. List of teams:

Launch of the terminal for managing ATS-Mini (translator note):

sudo putty -serial /dev/ttyACM0

When the monitoring (journaling) mode is turned on, the following information separated by commas is sent along the sequential interface:

An example of a magazine in Putty:

In SSB mode, the frequency “display” (Hz) = (Currentfrequency X 1000) + Currentbfo

Getting screenshots

The function of creating screen images is designed for interfaces designers and topics, as well as for the authors of documentation. It displays the image of the screen on a terminal console in the form of a BMP image in a hexadecimal format. To convert it into an image file, it is necessary to convert a hexadecimal line into a binary format.

Short single -line code for MacOS and Linux (if necessary, change the name of the sequential port /dev/ttyACM0):

echo -n C | socat stdio /dev/ttyACM0,echo=0,raw | xxd -r -p > /tmp/screenshot.bmp

Photos of the interface

[Columns]
[/Columns]

[Columns] [/Columns]

[Columns] [/Columns]

Source: https://esp32-si4732.github.io/ats-mini/manual.html