Connecting microphone to Plasma Stick 2040 w

Support
1

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?

Thanks!

2

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

3

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?

Thanks
James

4

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