Greetings,
i bought a a adafruit mono amplifier and followed these steps to connect it to my raspberry pi pico. https://embeddedcomputing.com/technolog ... ry-pi-pico
The pi and the chip are both powered by a battery box with 4,5 V output. The amplifier is connected to a 2W, 8 Ohm Small speaker.
So, after playing the first sound a high pitched beep starts to play. It gets louder and higher when I turn up the amplifier. On high pitches also a deep murmuring appears.
I tried changing the ground wire and the place where the ground is connected to the pi because i read about backfeeding currents. Nothing changed.
Im a little lost on how to tackle this problem. Any help would be nice!
Best Regards
Hannes
i bought a a adafruit mono amplifier and followed these steps to connect it to my raspberry pi pico. https://embeddedcomputing.com/technolog ... ry-pi-pico
The pi and the chip are both powered by a battery box with 4,5 V output. The amplifier is connected to a 2W, 8 Ohm Small speaker.
So, after playing the first sound a high pitched beep starts to play. It gets louder and higher when I turn up the amplifier. On high pitches also a deep murmuring appears.
I tried changing the ground wire and the place where the ground is connected to the pi because i read about backfeeding currents. Nothing changed.
Im a little lost on how to tackle this problem. Any help would be nice!
Best Regards
Hannes
Statistics: Posted by DocFriday — Wed Mar 27, 2024 11:19 pm — Replies 0 — Views 9