Orange pi zero2W supports built in microphone input or not

[QwertyOrange]

does orange pi zero2W support the headsets with built in microphone or not? I do not see any MICINN in the 24 pin connector?

[laibsch]

The OrangePi Zero 2w is maintained by the community and chraac in particular.  Maybe try to contact him by e-mail if you don't get a response here.  Or talk to other owners of the device here in the forum to see if they can answer your question.

[ag123]

accordingly H618 do not have mic in hardware

https://www.cnx-software.com/2023/07/03/orange-pi-zero-3-allwinner-h618-sbc-ships-with-up-to-4gb-ram/

 

hence, an option is to use a usb soundcard / dongle

https://www.aliexpress.com/w/wholesale-usb-sound-card.html

 

there are also those 'arduinoish' approaches

e.g. to use a ADC module board e.g. 

https://www.ti.com/lit/ds/symlink/ads1110.pdf

https://www.aliexpress.com/w/wholesale-ads1110.html

https://www.instructables.com/Arduino-and-the-TI-ADS1110-16-bit-ADC/

 

but that you would need to hack the pin interfaces to use i2c etc.

note it seemed ads1110 is a bit too slow for sound.

alternatives are like stm32, which has built-in adc that can go to like 1-2.5 Msps, but you would need to hack the spi interface etc.

the 'easiest / cheapest' way seemed to be generic 'usb sound cards'