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Jieli Bluetooth Smart Speaker Development: Common Issues with AC696N SoCs

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During the development of Bluetooth smart speakers using Jieli's AC696N series SoCs, developers may encounter several common issues. This article summarizes these problems and provides corresponding solutions to help streamline the development process. 1. AC696N V1.7.0: Unable to Display SDK Version Number via Test Box When TWS is Enabled Problem Description: After enabling TWS (True Wireless Stereo) in AC696N V1.7.0 SDK, the test box cannot display the SDK version number. Solution: Register a new callback function to handle the SDK version information request. // Re-register a callback function bt_testbox_ex_info_get_handle_register(TESTBOX_INFO_SDK_VERSION, user_bt_get_sdk_ver_info); // Callback function example: u8 user_bt_get_sdk_ver_info(u8 len) { y_printf("Getting version number\n"); const char *p = sdk_version_info_get(); if (len) { *len = strlen(p); } log_info("sdk_ver:%s %x\n", p, *len); return (u8 *)p; } After Modification: The SDK version numb...
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KT148A Voice Chip: A Powerful Tool to Enhance the User Experience of Smart Soymilk Makers

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The KT148A voice chip from Qingyue Electronics significantly enhances the user experience of smart soymilk makers with its unique advantages. It has a large - capacity voice storage space, allows users to change voices by themselves, features a low - power design, and can be reprogrammed. Smart soymilk makers emerged from modern people's pursuit of a healthy lifestyle and a convenient home life. In the fast - paced urban life, soy milk is popular among consumers of all ages due to its rich nutrition and easy absorption. With the advancement of technology and the popularity of intelligence, smart soymilk makers not only meet the demand for a healthy diet but also integrate elements of convenient operation and intelligent experience. The KT148A voice chip adds a voice - broadcasting function to it, further improving the user experience. The KT148A is a 32 - bit DSP voice chip with a standard SOP8 package. It has an internal 420KByte voice space, can support a maximum voice length of ...
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Connection and Practical Application of Arduino and KT6368A Bluetooth Chip: Improve Development Efficiency with Development Kits

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In the fields of the Internet of Things and embedded development, Bluetooth chips are crucial components for wireless communication. The KT6368A is a low - cost pure - data chip that supports Bluetooth 5.1 dual - mode (BLE + SPP) and is widely used in various smart devices. This article will detail how to connect the KT6368A to Arduino and configure and communicate with it through AT commands. At the same time, it is recommended to use development kits and FAQs to quickly use and debug code, improving development efficiency. I. Overview of the KT6368A Bluetooth Chip The KT6368A is a pure - data transparent - transmission chip that supports the Bluetooth 5.1 protocol and has the following characteristics: Dual - mode Support : It supports both BLE and SPP dual - modes, but only one mode can be used at a time. Size and Cost : It has an ultra - small SOP8 package and extremely low cost. Communication Interface : It supports UART serial communication with a default baud rate of 115200. Ins...
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