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Amazon.com: DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode for Arduino + 4PIN Dupont Cable : Electronics
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Hc-06 Hc06 Wireless Bluetooth Transceiver Module 4 Pin Ttl To Uart Converter Adapter - Integrated Circuits - AliExpress
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HC 06 HC 06 RF 4 Pin for Wireless Bluetooth Transceiver Slave Module RS232 / TTL to UART converter and adapter|Integrated Circuits| - AliExpress
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HC 06 Wireless Serial 4 Pin Bluetooth compatible RF Transceiver Module RS232 Slave Module 3.6 6V| | - AliExpress
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AEDIKO 2pcs HC-06 Bluetooth Module RS232 4 Pin Wireless Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode Module
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HC-06 Wireless Serial 4 Pin Bluetooth Transeiver RF Master Module Replacement for Arduino - Walmart.com
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