Build it: Mute ButtonElectrical connections between CPX and pushbutton
Connect the bottom pushbutton terminal to CPX pin A1.Connect the bottom side pushbutton terminal to CPX 3.3V pin.Plug in the microUSB cable between the CPX and your computer. That’s it!
Check the CPX pinout diagram above if…
Link: Microsoft Teams Mute Button
via http://www.hackster.io