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Amazon.com: 2-Pack HC-05 Board,Aideepen HC05 Pass-Through Module Slave and Master 6 Pin Serial Communication : Electronics
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HiLetgo 2pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino
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HC-05 6 Pin Wireless Bluetooth RF Transceiver Module for Arduino BT Serial Pass-Through Module HC05 Wireless Serial - AliExpress
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HC-05 HC05 RS232 Wireless Module For Arduino Serial 6 Pin Bluetooth HC-06 4 Pin RF Receiver Module RS232 TTL to UART Converter - AliExpress
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