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Asthma diagnostic device
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Product introduction
Main control chip: STM32F411CEU6
Display: 1.3-inch OLED, 128×64 resolution
Storage: SD card: 8GB
Interface: TYPE-C (USB 2.0 communication + charging)
Communication: Bluetooth 5.0
Peripherals: Professional microphone, vibration sensor
Power supply: Built-in 3.7V 1300mAh lithium battery
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