Connecting microphone to Plasma Stick 2040 w

Hi, I’ve a Electret microphone with a internal amp, I’d like to to connect to my Plasma stick so I can get it to respond to music. I was wondering if there’s a list of pins it’s safe to connect to,without affecting the LED functionality?


The pins used are shown in the schematic. i2c and one data pin for the addressable LED’s

Brilliant, thanks for that. I presume I can use the ground on the bottom left as a common ground, and either of the ADC’s for the signal, but which is a good pin to take the voltage from. I don’t want to overload the one pin for 3.3V?


That depends on how you are powering the Pico, and what voltage the connected device needs / can use?