I've tried powering the board using both the USB and a 9V battery and using a star topology for ground, but the noise is still present. I haven't tried decoupling each module's power yet, but I'll try that next.
I've tried powering the board using both the USB and a 9V battery and using a star topology for ground, but the noise is still present. I haven't tried decoupling each module's power yet, but I'll try that next.