Stored stations, with seek and store

[tibers]

One thing I really like about my tecsun radio is the "ETS" (easy-tuning-system) button. I actually can't remember the last time I actually walked frequencies to find something to listen to.

To do this, we'd need two features which dovetail:

1. A way to store frequencies we wish to listen to
2. A way to scan frequencies and automatically store them

It's not a heavy lift because we already can scan frequencies (although I'm not good at C so don't quote me...) so we just need to store them.

I would propose that this feature is ephemeral ("stations are stored until you turn off the radio...") and that it only operates with the current settings (band, step, etc). Of course there's "all" if you really want to sit and wait...

This has a derived requirement that there's a "knob mode" for walking the stored frequency list.

[max-arnold]

The stored stations feature is being planned by @luarvique. And the station list is going to be persistent, like favorites/bookmarks.

Unfortunately, auto tuning is not very reliable and also doesn't work on SSB, so we can't rely on it.

[max-arnold]

The Memory function has been released in 2.12: https://github.com/esp32-si4732/ats-mini/releases/tag/v2.12

[stevecrow74]

I like the memory function, one question, when saving a memory, are all settings for that moment saved? As in is the current volume level, band width, AGC status etc etc. like a snapshot of that moment you saved to memory.

[luarvique]

Band, modulation, and frequency are saved. Other settings are not saved.

[max-arnold]

Only the minimal amount of data is saved:

• Band
• Frequency
• Mode

In theory we could store more data, but not into the current "EEPROM" (a flash area) data structure. It needs to be refactored first.

BTW, be careful when you add more bands (I saw your firmware with a different bands table) - the per-band settings area could overflow into the memory settings area and corrupt it. To fix that you need to allocate more space for the settings area and adjust the EEPROM_*_ADDR offsets in the Storage.cpp.

[tibers]

BTW, be careful when you add more bands (I saw your firmware with a different bands table)

Not sure if that was directed at me or not. :) I never got that firmware building. I was intending to add fmrs/gms but the step is 12.5 for some reason and I made a huge mess changing the struct to float. It was going to be experimental anyway since those bands are way above what the radio can tune. I was going to be very surprised if they worked.