pHAT BEAT [Discontinued] Brand_ABelectronics Also connect a ground pin

Also connect a ground pin together and power with 5V

and the entire matrix is controlled using just one pin (Digital #6)

A 1200mAh battery also works great

then the other wires are connected to ground to activate the LED light or buzzer

pHAT BEAT [Discontinued] Brand_ABelectronics Also connect a ground pinThe ultimate audio add on for your Pi! pHAT BEAT gives you high quality, digital, amplified, stereo audio and 16 beautiful little RGB LEDs, in two rows of 8, that are ideal as a VU meter, and 6 buttons to control your audio. We've taken the I2S mono DAC and amplifier that we used on Speaker pHAT and Picade HAT and added a second one for stereo goodness. There's a nifty little DIP switch on the bottom of the board that lets you select either mono (left