HC-04D Bluetooth module Dual mode SPP2.1+BLE4.0 wireless serial communication module with bottom plate welding pin
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15%
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Ymiko BT Serial Port Module RS232 Data Transmission Module Serial Port Module BC‑04 Wireless 5V Mini USB RS232 Serial Port Communication For /DOS/ Data Transmission
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Esp8266 Nodemcu Lua Cp2102 Esp-12e Internet Wifi Development Board Open Source Serial Wireless Module Internet For Arduino Ide Micropython
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