audio This can be used to test audio functionality. Enabled feature Audio Audio, PCM Filesystem MTD, SmartFS Kernel GPIO, I2C, I2S, PWM, SPI, SSS, UART, RTC, Watchdog Debug POSIX APIs Workqueue Network Ethernet, Dhcp, IPv4, Lwip, TLS, TCP, UDP, Wifi, Wpa_supplicant TASH