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【Wide Compatibility】Compatible with Crowduino/Arduino/Seeeduino, you can use it easily.
【Serial Bluetooth-compatible module】Has a complete 2.4GHz radio transceiver and baseband, and the indoor barrier-free communication distance can reach 10m.
The Bluetooth-compatible Shield integrates a Serial Bluetooth-compatible module. It can be easily used with Arduino /Crowduino for transparent wireless serial communication. You can choose two pins from Arduino D0 to D7 as Software Serial Ports to communicate with Bluetooth-compatible Shield (D0 and D1 is Hardware Serial Port). It also expand five analog IOs that you can use it to connect other devices. The Bluetooth-compatible Shield could be setting to Master or Slave by user.
Serial port Bluetooth-compatible module is fully qualified Bluetooth-compatible V2.0+EDR(Enhanced Data Rate) 3Mbps Modulation with complete 2.4GHz radio transceiver and baseband. It uses CSR Bluecore 04-External single chip Bluetooth-compatible system with CMOS technology and with AFH(Adaptive Frequency Hopping Feature).