JDY-31 Bluetooth-compatible BLE 3.0 HC-05 HC-06 Module Serial Port 2.4G SPP Transparent Transmission Compatible HC 05 06 JDY-30
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JDY-31 Bluetooth-compatible BLE 3.0 HC-05 HC-06 Module Serial Port 2.4G SPP Transparent Transmission Compatible HC 05 06 JDY-30