Looking for annunciator / buzzer hardware recommendations

[wrbrower]

Hello,
My Ford Explorer's side mirrors have a blindspot traffic indicator and a turn-signal indicator.
I am looking for hardware recommendations for an audible device, something more professional than a simple piezo buzzer,
that will sound when the blindspot monitor is lit and the turn signal flashes.

I do not need help with the detection circuitry. I am only looking for a more pleasant tone generator beyond a shrill piezo buzzer.

Thank you

[Ath]

Using ESPEasy, you could use the RTTTL command to play a warning tune via that buzzer you connected?

[wrbrower]

Using ESPEasy, you could use the RTTTL command to play a warning tune via that buzzer you connected?

I'll give that a try. I haven't 100% committed to ESP hardware, but an ESP01 would not be difficult to incorporate.

Thanks!

[Ath]

Hmm, the ESPEasy 1M builds for such ESP01S will probably exclude the RTTTL command for bin size reasons, unless you replace the flash chip by a 4MB flash, then you can install a "normal" 4M1M build that does include the command.

You could get a LilyGO TTGO T-01-C3 that has the same size of an ESP01S but an ESP32-C3 MCU with 4MB Flash (hardware pin-compatible replacement).

[ThomasB]

There's a wide variety of MP3 modules that you could use for custom sound playback. Some have onboard memory, some require a flash card.

For example:
https://www.amazon.com/HiLetgo-Lossless ... B01DK9SL6C

- Thomas

[Ath]

And ESPEasy has support for that type of module, via P065, DFPlayer mini (DFR0299/YX5200) and YX5300. But that's only available in a "Collection" build (A..G). So that's another reason to get that T-01-C3 module (or another small unit like a C3-Zero), as there are no Collection builds for ESP01S available.

[ThomasB]

FWIW, you don't need ESPEasy to run many of these little MP3 boards. Most can be used standalone. Apply power and then trigger the required track via one of its switch inputs.

Unless I misunderstood, the OP wants a pleasant sound for blindspot alerts and another for turn signals. That just two sound tracks, both handled by the MP3 board. Some of them can do several tracks using input activation.

- Thomas

[TD-er]

Yep I agree on Thomas' idea about the MP3 module.
It is way easier to do and probably is easier on the battery life too.
Just as long as you make sure any amp connected to it is also not powered when unused.
So maybe you could even make the MP3 module play continuously and just switch the output as some MP3 modules need some "boot time" when powered on.

[Ath]

FWIW, you don't need ESPEasy to run many of these little MP3 boards. Most can be used standalone. Apply power and then trigger the required track via one of its switch inputs.

Yes, I understand, just trying to promote the use of ESPEasy but in this case that's not per se the best solution.

[ThomasB]

So maybe you could even make the MP3 module play continuously and just switch the output as some MP3 modules need some "boot time" when powered on.

Good idea to dedicate an MP3 player to each alert type. This makes things simpler. Might get away with just applying power, else let it run continuously and switch the speaker on/off.

Yes, I understand, just trying to promote the use of ESPEasy

I was thinking the same thing and wanted to justify an ESPEasy solution. Because if all you have is a hammer, everything looks like a nail.

- Thomas