Little suggestion for display STEREO symbol on FM #39

Jedrusia · 2025-02-06T19:12:58Z

Would it be possible to show the "Stereo" tag on the display in FM mode, e.g. as a graphic symbol of two letters "o" joined together in half? Something like this:
https://commons.wikimedia.org/wiki/File:Stereo.png

Thanks

diqezit · 2025-04-22T18:08:26Z

It is possible, but it requires more code - and the best way is to use the * symbol over the existing SYNC mode position.
As an option, can draw a graphical primitive ∞.
But I'm not sure that this library supports this font.

Let's stop at *, need to modify - after adding

#if USE_RDS
    showRDS();
#endif

// Check and update stereo status only if we are in FM, S-meter is off, RDS is not displayed and settings are not active.
if (g_currentMode == FM && !g_sMeterOn && !g_displayRDS && !g_settingsActive) 
{
    g_si4735.getCurrentReceivedSignalQuality(); // Get current signal data
    bool newStereoStatus = g_si4735.getCurrentPilot(); // Check the presence of stereo pilot tone

    // If the status has changed, update the flag and redraw the indicator
    if (g_stereoStatus != newStereoStatus)
    {
        g_stereoStatus = newStereoStatus;
        showModulation(); // Update the modulation display (including the indicator *)
    }
}

And replace the function

void showModulation()
{
    // Display mode name (FM, AM, SSB, etc.)
    oledPrint(g_bandModeDesc[g_currentMode], 0, 0, DEFAULT_FONT, g_cmdBand && g_currentMode == FM);

    // Do not display additional indicators (S/*) if the settings mode is active
    if (!g_settingsActive) {
        oled.setCursor(24, 0); // Set cursor for S/* indicator

        if (isSSB() && g_Settings[SettingsIndex::Sync].param == 1)
        {
            // Display 'S' for SSB Sync
            oled.print(“S”);
        }
        else if (g_currentMode == FM && g_stereoStatus)
        {
            // Display '*' for FM Stereo
            oled.print(“*”);
        }
        else
        {
            // In other cases (including AM or FM without stereo) print a space to clear the space
            oled.print(” ”);
        }
    } else {
         // If the settings are active, we should also clear the space, if there was something there.
         oled.setCursor(24, 0);
         oled.print(” ”);
    }

    showBandTag(); // Display Bandpass filter / BFO / etc.
}

Well so.. Only appears incorrect display of characters on the screen in AM mode (ssb etc), apparently somewhere where the text buffer is not cleared or incorrect order of rendering. So for now

Jedrusia · 2025-04-22T18:56:48Z

Good solution, unfortunately I'm very bad at programming, so it would be great if someone could generate a *BIN file for me with the bootloader and pin A1 set to the battery level indicator.

Thank you.

ColinPamplin · 2025-05-09T19:09:47Z

I wonder how you managed to get that code to compile.
I get "text section exceeds available space in board."
Sketch uses 30792 bytes (100%) of program storage space. Maximum is 30720 bytes

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Little suggestion for display STEREO symbol on FM #39

Little suggestion for display STEREO symbol on FM #39

Little suggestion for display STEREO symbol on FM #39

Little suggestion for display STEREO symbol on FM #39

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