Esp32 C3 or C6 as Headphone "driver"

eemillll
Posts: 2
Joined: Sun Nov 03, 2024 5:07 pm

Esp32 C3 or C6 as Headphone "driver"

Postby eemillll » Sun Nov 03, 2024 8:47 pm

Hello, i have two headphone speakers that i want to put in a pair of earmuffs and use an esp32 to recieve music from mi phone via bluetooth.
is this possible?
Will the sound quality be good?
Do i need an amplifier?
Is esp32 c3 enough or should i go for esp32 c6

i will use the xiao esp32 c3 or c6 because of the small size and lithium battery charging capabilities.
also can i program this with arduino ide, it is the only programming language i kind of know.
Thank you in advance!

ESP_Sprite
Posts: 9757
Joined: Thu Nov 26, 2015 4:08 am

Re: Esp32 C3 or C6 as Headphone "driver"

Postby ESP_Sprite » Mon Nov 04, 2024 12:18 am

It absolutely is possible (although note that the C3/C6 aren't really optimized for low power in this use case). You probably want to have an external I2S codec, potentially with integrated headphone amplifier. If you have that, the sound quality should be excellent.

eemillll
Posts: 2
Joined: Sun Nov 03, 2024 5:07 pm

Re: Esp32 C3 or C6 as Headphone "driver"

Postby eemillll » Mon Nov 04, 2024 4:09 pm

Can you reccomend an i2s module?
I have been thinking about this one:
https://www.aliexpress.com/item/1005002 ... src=google

ESP_Sprite
Posts: 9757
Joined: Thu Nov 26, 2015 4:08 am

Re: Esp32 C3 or C6 as Headphone "driver"

Postby ESP_Sprite » Tue Nov 05, 2024 3:39 am

Not really; I don't generally use modules as I tend to design my own PCBs and put I2S codec chips on there, rather than modules. The one you linked seems OK, that chip is very common and should have good support. Do note it's only a codec, that is, the jack output is at line level meaning it cannot drive a headphone directly and there is no volume control (aside from scaling your samples in software).

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