ANNOUNCE: Squeezelite-ESP32 (dedicated thread)

[mark wollschlager]

Ooo

https://www-hackster-io.cdn.ampproject.org/c/s/www.hackster.io/news/espressif-s-first-wi-fi-6-capable-soc-esp32-c6-now-shipping-samples-and-devkit-boards-a6380591decb.amp

[sle118]

Ooo
https://www-hackster-io.cdn.ampproje...380591decb.amp

The ESP32-C6 features two 32-bit RISC-V cores. It has a high-performance (HP) core that runs up to 160 MHz

Pushing the WROVER modules to 240MHz and that's barely sufficient for some tasks. It's unlikely that this new module would suffice.

[philippe_44]

Pushing the WROVER modules to 240MHz and that's barely sufficient for some tasks. It's unlikely that this new module would suffice.

Yew and unless they have octal spi and psram, it will be a no-go at 160MHz

[mark wollschlager]

☹ , darn. The wifi improvements caught my eye. My squeezeamps periodically get confused by the ever changing wifi environment. They always come back to their senses, but sometimes require a power off to reconnect.

[Wiredcharlie]

I bought an ESP32-WROVER-DEV Camera board...

...and then wished I hadn't. But I got it working!



1. https://sle118.github.io/squeezelite-esp32-installer/

You then get the - flash read err, 1000 - boot loop:



2. Repair bootloader:

https://docs.espressif.com/projects/esp-at/en/latest/esp32/AT_Binary_Lists/ESP32_AT_binaries.html

Download a WROVER zip and find bootloader.bin

Use online installer:

https://espressif.github.io/esptool-js/

Unplug, replug.

Hold down RESET and BOOT, release RESET, release BOOT.



Flash bootloader.bin to 0x1000 DO NOT ERASE FLASH

https://github.com/espressif/arduino-esp32/issues/1274


...should work now! Let me know if it works for you.

Tony

PS

Would not work reliably when moved to external USB PSU.
Placed 4.7uF between EN and GND:

https://github.com/espressif/arduino-esp32/issues/1274

Still had problems and suspected Rx line was floating when not connected to PC so connected 8.2k between Rx and 3.3v. Exact values not important.

[Wiredcharlie]

Switch GPIO by http?

I currently have an ESP8266 switching an amplifier on using the SBNetIO plugin - and also switching audio source and amplifier power - when a projector is powered. (I know that Squeezelite-ESP32 has the amp switching feature, but this does not help with my other switching tasks.)

I wondered if Squeezelite-ESP32 could eliminate my ESP8266 switch.

Is it possible to switch a GPIO on the ESP32 using http? (Something like, http://192..../switch_gpio,4,1)

Thanks for Squeezelite-ESP32 - I really appreciate your work.

Tony

[sle118]

Switch GPIO by http?

I currently have an ESP8266 switching an amplifier on using the SBNetIO plugin - and also switching audio source and amplifier power - when a projector is powered. (I know that Squeezelite-ESP32 has the amp switching feature, but this does not help with my other switching tasks.)

I wondered if Squeezelite-ESP32 could eliminate my ESP8266 switch.

Is it possible to switch a GPIO on the ESP32 using http? (Something like, http://192..../switch_gpio,4,1)

Thanks for Squeezelite-ESP32 - I really appreciate your work.

Tony

Are you able to do an http post of a json payload from that plugin? if so, I could probably add a small console command. It would register under the "advanced" tab that shows up when you enable it from the credits tab.

[Wiredcharlie]

Are you able to do an http post of a json payload from that plugin? if so, I could probably add a small console command. It would register under the "advanced" tab that shows up when you enable it from the credits tab.

I don't think SBNetIO can post json nor can I think of a way to integrate with the projector switching with json. However, if json is the only practical way to implement gpio control, I may yet figure something out!

Thanks for your help,
Tony

[RPlanto]

Hi all,
Amazing project you have, congrats!
I want to build a esp32 squeezeplayer but for my use the size must be kept to the minimum. I plan to use a wrover e, set it up with a esp32-devkits-r downloader board and then have it to work on its own feeding 3.3V (from a raspberry pi if possible (?)) and extract spdif.

The problem is that i need a toslink output, and i dont have space enough to use one of those i2s to toslink boards. I am wondering if it is possible to somehow connect a toslink emitter (from what i see they work with 3-5V).
Is there a way to plug the toslink emitter to the ESP32 similartly to what can be done for a spdif coax output? i have been reading this thread and other sources but i could not find anything at all....

thanks a lot for any insight!

[sle118]

Hi all,
Amazing project you have, congrats!
I want to build a esp32 squeezeplayer but for my use the size must be kept to the minimum. I plan to use a wrover e, set it up with a esp32-devkits-r downloader board and then have it to work on its own feeding 3.3V (from a raspberry pi if possible (?)) and extract spdif.

The problem is that i need a toslink output, and i dont have space enough to use one of those i2s to toslink boards. I am wondering if it is possible to somehow connect a toslink emitter (from what i see they work with 3-5V).
Is there a way to plug the toslink emitter to the ESP32 similartly to what can be done for a spdif coax output? i have been reading this thread and other sources but i could not find anything at all....

thanks a lot for any insight!

If you are referring to an optical output, then you don't need a lot of components around them, as they are just photo diodes. Philippe merged some code that abuses the esp32 i2s device's output (for its convenient DMA) to bit bang the spdif codes out of a gpio, no external chip needed. I think some adventurous people have even been using diodes taped to an optical cable.

As for outputting digital RCA, you might need a dedicated 1:1 transformer for the task (this is what I'm using in my SqueezeIO design, which is a board that has Ethernet and simultaneous optical and RCA digital out as well as analog out... In addition to analog in, but that's a different story.

[RPlanto]

thanks Sle118.

Yes, if possible i would add an optical output connected directly to the gpio pin / ground / 3.3V as depicted here:

https://github.com/amedes/esp_a2dp_sink_spdif

using a toslink emitter like this:

https://www.tme.eu/lu/en/details/fcr684205t/optical-connectors/cliff/otj-5-fcr684205t/

wasnt sure if it would work, but if other people made it work i will give it a try

[sle118]

thanks Sle118.

Yes, if possible i would add an optical output connected directly to the gpio pin / ground / 3.3V as depicted here:

https://github.com/amedes/esp_a2dp_sink_spdif

using a toslink emitter like this:

https://www.tme.eu/lu/en/details/fcr684205t/optical-connectors/cliff/otj-5-fcr684205t/

wasnt sure if it would work, but if other people made it work i will give it a try

That will work.

Remember though that you need an esp32 module with at least 4Mb of PSRAM. The appropriate module is a WROVER and definitely not the WROOM that the a2dp sink is using

[RPlanto]

Remember though that you need an esp32 module with at least 4Mb of PSRAM. The appropriate module is a WROVER and definitely not the WROOM that the a2dp sink is using

Yes, sure, i am ordering the WROVER E16R8 and the WROVER IE16R8 in case i need an external antenna + ESP32-DEVKITS-R for the setup. BTW, i am struggling to find what is the size of the antenna connector of the IE, is it 1IPX or 4IPX or anything else? Additionally, any idea if the 3.3V pins of a raspberry pi 4b (the power rail ones, not the GPIO ones) will be enough to power the barebones WROVER? i read that those pins can deliver up to 1A, but i dont have any proof of that, but it would be interesting to know what is the power consumption of the WROVER running squeezelite or if someone has powered one from a raspberry pi successfully...
thanks a lot for your help! much appreciated!!!

[Stumphy]

I apologize if this is a rudimentary question, this is definitely the hard-core corner of the LMS frontier.

I have set up an Mn Cast Raspiaudio box. As warned in this thread repeatedly, the ESP32 gets overwhelmed with high bitrate FLAC - I'm getting stuttering on 24/96k files. So far, no problem, I understand.

But I've been assuming it was possible to force transcoding on my very-capable LMS server somehow. I figured I could set some kind of per-player threshold or limit for the ESP32 that the LMS server would honor, and the LMS server would resample everything on the fly before sending it to the EMS32. If this is possible, I can't figure out how to do it.

I'm not bitrate obsessed - I have no illusions that I can hear the differences between high bitrate and redbook audio. I'm content with some dither error or whatever when streaming to ESP32. But I do purchase high bitrate files when the cost differential isn't crazy, so I have a fair amount of them, and will continue to buy them..

Suggestions?

[Gobuleberbu]

If you are referring to an optical output, then you don't need a lot of components around them, as they are just photo diodes. Philippe merged some code that abuses the esp32 i2s device's output (for its convenient DMA) to bit bang the spdif codes out of a gpio, no external chip needed. I think some adventurous people have even been using diodes taped to an optical cable.

As for outputting digital RCA, you might need a dedicated 1:1 transformer for the task (this is what I'm using in my SqueezeIO design, which is a board that has Ethernet and simultaneous optical and RCA digital out as well as analog out... In addition to analog in, but that's a different story.

SqueezeIO?!? That sounds interesting
Can we follow that project?