Guru
Joined: 16/09/2019
Location: United KingdomPosts: 4048
| Posted: 11:42pm 14 Mar 2023 |
I'm working on the audio for the Mk2 using a PAM8403 and have two questions:
1. Where do I put the variable resistor / volume control?
a. Between the Pico and filter
b. Between the filter and amp
c. Between the amp and speaker
My guess would be (c)
2. This really only needs mono sound, can I just leave the "right" input and output of the PAM8403 flapping in the wind or do they need grounding (or something else).
Thanks,
Tom