Smart Sensors and Monitoring Systems Development

Bluetooth Audio Solution Development: From Chip to Finished Product: 1. Chip Selection: - Mono: Simple calls, voice broadcast - Stereo: Stereo music playback - Noise Reduction Chip: With ANC active noise cancellation - Cost Consideration: Select according to product positioning 2. Hardware Design: - RF Part: Antenna matching, RF routing - Audio Part: Codec, power amplifier, microphone - Power Part: LDO, charging management - Interface Part: USB, buttons, LED 3. Firmware Development: - Protocol Stack: Bluetooth protocol stack porting - Audio Processing: EQ, noise reduction, sound effects - Function Development: Playback control, call function - OTA Upgrade: Firmware online upgrade 4. APP Development: - Basic Control: Play, pause, volume - Function Settings: EQ adjustment, noise reduction switch - Firmware Upgrade: OTA upgrade function - Device Management: Pairing, connection management 5. Certification Testing: - Bluetooth Certification: BQB certification - SRRC Certification: Domestic radio type approval - CE/FCC Certification: European and American market certification - RoHS Certification: Environmental certification 6. Mass Production Introduction: - Trial Production Verification: Small batch trial production verification - Production Line Testing: Develop production line test plan - Quality Control: Develop quality inspection standards - Packaging Design: Product packaging design

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