RevK :verified_r: on Nostr: Anyone had any experience with MEMS microphones. I seem then as low as $0.03 I have ...
Anyone had any experience with MEMS microphones. I seem then as low as $0.03
I have seen some places say they have a simple output with a voltage bias already, e.g. around 0.8V.
But most things consider circuits to replace analogue microphones with capacitive coupling and a separate bias.
My thought is if the output is already DC biased, it could go directly to an ADC input on an ESP32, and need no other components to allow reading an audio input.
But data sheets seem unclear,
#ESP32 #MEMS
I have seen some places say they have a simple output with a voltage bias already, e.g. around 0.8V.
But most things consider circuits to replace analogue microphones with capacitive coupling and a separate bias.
My thought is if the output is already DC biased, it could go directly to an ADC input on an ESP32, and need no other components to allow reading an audio input.
But data sheets seem unclear,
#ESP32 #MEMS