BLE Voice

When developing Bluetooth smart speakers based on Jieli's AC696N series of SoCs, paying attention to certain hardware and software details can significantly improve development efficiency and system stability. This article summarizes several key points, including RTC power supply, register debugging, AAC format support, and DAC fade-in settings. 1. Developing with RTC Functionality Note: The RTCVDD pin must be powered by an external power source , such as a button cell battery or IOVDD. Do not leave it floating or connect it to an inappropriate voltage rail. 2. Chip-Related Register Printing ADDA Register Value Printing The following functions can be used to dump the current state of the Audio DAC/ADC registers, which is invaluable for debugging audio issues. · Print all DAC and ADC registers: void audio_adda_dump(void) { printf("DAC_VL0:%x", JL_AUDIO->DAC_VL0); printf("DAC_TM0:%x", JL_AUDIO->DAC_TM0); printf("DAC_DTB:%x", JL_AUDIO-...

🏠 [Smart Home, Smarter Control: JL701N Chip Demo] 🎛️ Elegant Control at Your Fingertips One sleek knob screen, powered by JL701N chip, controls it all: ✅ Power On/Off ✅ Switch Modes: Heat, Cool, Fan ✅ Adjust Airflow & Direction ✅ Rotate to Set Temperature ⚡ Powered by Advanced Tech: • Bluetooth 5.3 for stable, wireless connection • 32-bit Dual-Core DSP for smooth graphics & response • High-performance MCU for reliable operation 💡 Perfect for Modern Living: Smart AC controllers | Home automation panels | Appliance interfaces #JLChip #SmartHome #KnobDisplay #WirelessControl #Innovation

🎤 [Tech Magic: A Toy That Sings, Dances & Transforms Voices!] ✨ Meet the Heart of Interactive Play Powered by the AC6965E Bluetooth audio chip, this toy is a bundle of joy: 🎵  Record & Playback : Capture laughs, sing along! 🎭  Real-time Voice Changer : Create funny, magical sounds. 💃  Dance Party Mode : Syncs music with motorized dance moves. 🔬 Powered by Advanced Tech: • 32-bit DSP for crisp, real-time audio effects • Ultra-low power consumption for longer playtime • Compact QSOP24 package for sleek toy designs 🌟 More Than a Chip, It's a Solution: We provide the core technology that brings creative toy ideas to life, ensuring reliability, great sound, and magical user experiences.

I. Application Background With the development of urban intelligent transportation, accessibility facilities are receiving increasing attention. For visually impaired individuals, relying solely on visual traffic signals is insufficient for safe street crossing. To address this, we have developed a crosswalk auditory guidance system for traffic light intersections based on the KT142C voice chip , which uses audible cues to guide visually impaired pedestrians safely across streets. II. Solution Overview The system is installed on traffic light poles and operates in sync with pedestrian signals: 🔹  During green light : Plays rhythmic prompts to guide crossing. 🔹  During red light : Plays a different rhythmic pattern to indicate waiting. 🔹  Light-sensitive smart adjustment : Automatically switches between "daytime" and "nighttime" modes based on ambient brightness to avoid noise disturbance at night. 🔹 Volume and modes can be flexibly configured via serial command...