Now, let's get back to the microphone array test. First, just for testing purposes, we'll connect the MaixBit and the microphone array using a breadboard and jumper wires.    

I wrote some test code that converts the sound information obtained by the microphone array into a heatmap of the sound source location and displays it on the display.

You can confirm that the location of the heatmap is moving according to the location of the chime.