Let's create an interesting application! You can connect the Rapid Board-SAMD21 with the Rapid Board-MATRIX DISPLAY and Rapid Board-I2S AUDIO SPEAKER. The Rapid Board-I2S AUDIO SPEAKER can be connected to your favorite speaker (remember to match the output specifications of max98357). Then, connect the USB cable and use Arduino IDE or ISP to experience the fun of rapid audio and video development and testing!