Is raspi generally used in commercial product/end product.if not can u guys suggest raspi alternatives for end products.

can i draw power to drive 4 bo motor with xiao rp1040 ?

Is raspi generally used in commercial product/end product.if not can u guys suggest raspi alternatives for end products.

Data-over-Audio/Sound
The process of using sound waves to transmit digital data; sound waves are locally encoded and broadcasted from a device and locally decoded via another device or series of devices using speakers and microphones

https://www.theverge.com/2017/9/18/16325004/tez-google-india-audio-qr-cash-payments

Tez,initial version of google pay user audioqr for communication.i am just interested in whether this tech is dead or not.i am curious in stuffs like whether we ca use it for positioning ,localisation, swarm communication etc

(https://github.com/ggerganov/wave-share)