HC-05 HC-06 RF Wireless Bluetooth Transceiver Slave Module HC-08 Serial Port Module Wireless 4.0 HC-42 BLE 5.0 Bluetooth module

HC-05 HC-06 RF Wireless Bluetooth Transceiver Slave Module HC-08 Serial Port Module Wireless 4.0 HC-42 BLE 5.0 Bluetooth module

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