How to send AT command to external audio codec chip and configure it? use BG77 module

IoT Modules LPWA Module
1

Now i am learning BG77 module, i want to send some AT commands to our audio codec chip and configure its registers, please tell me how to do , thanks.

2

Hi Mr.Tan,

You could use AT+QIIC commadn to configure codec chip registers.

image
image1019×744 39.9 KB

Best Regards,