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JDY-40 2.4G wireless serial port transmission transceiver and remote c – Sunhokey Electronics Co., Ltd
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TUTORIAL: How to get Started Bluetooth Module JDY-31 JDY31 BK3231 Arduino - Quick Simple! HC05 HC06 - YouTube
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Jdy-33 Dual Mode Slave Serial Port Spp-c Jdy 33 Bluetooth-compatible Module Compatible With Hc-05/06 Slave - Integrated Circuits - AliExpress
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