Hi, I have built a full duplex wireless audio communication system where the wireless part is taken care by esp12 and using an Arduino as the ADC and DAC (Pin 9 fast PWM based DAC) for audio receiving (using ADC) and production (using PWM DAC). So far I was doing POC and using Arduino UNO, now I wa…

Noisy audio samples while using ADC on Arduino pro mini

Koepel May 7, 2018, 9:38am 4

The 39k R1 resistor injects the noise from the VCC into the audio signal.

Topic		Replies	Views
arduino pro mini ho fatto una cavolata Generale	15	1667	May 7, 2021
Audio Arduino Pro Mini Software	7	2633	May 7, 2021
Arduino - How do I reduce the noise from the speaker General Electronics	9	9498	May 6, 2021
Noise Issues with ADC. Using Control Voltage for Analog Input Audio	27	12722	May 6, 2021
Arduino Micro DC noise General Electronics	4	830	May 6, 2021