Hello, i have a beginners question regarding the conditioning of an input voltage to sample on the ADC. Since i am going to use a ESP32 the target Voltage is 0-3.3v. The input voltage is coming in form of an audio signal, unfortunately in a very large and unforseeable variety of forms. Basically t…

Input Voltage scaling (reducing & amplyfying!)

groundFungus April 5, 2018, 3:33pm 2

sample on the ADC

target Voltage is 0-3.3v.

The ADC on an ESP8266 is 0 to 1V.