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[Qrenz]

Hi,
I have only very little knowledge about audio circuit (amplifier, filter, etc), so please forgive me.

What should be the recommended circuit to connect to the audio output pin (AUDIO_L) on BT815/6 ? So that it can working to play a sound/tone/voice.
and also at the end of the circuit should be connected to a speaker right?
What is the specification of speaker for use with EVE BT815/6 chip?

Thank you.

[BRT Community]

Hi,

We have an example circuit in this development module below (see page 11)

https://brtchip.com/wp-content/uploads/Support/Documentation/Datasheets/ICs/EVE/DS_VM816C.pdf

This circuit can be used with the CleO Speaker below, you can find the spec of the speaker used in this datasheet

https://brtchip.com/wp-content/uploads/Support/Documentation/Datasheets/Modules/Cle0/DS_CleO-Speaker.pdf

Best Regards, BRT Community

[Qrenz]

I see, so it will work with 0.5W 8Ohm type of speaker, I will try with SMD speaker soldered onboard.

Thank you

[TFTLCDCyg]

It is possible to connect the audio output line to the auxiliary of any speaker, just share GND between the MCU and the speaker. You can even use a bluethoth audio transmitter

Video: audio test