DSD Tech HM-11 Bluetooth 4.0 BLE Module with 6 Pin Board Compatible with iOS ...
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Product Details
Make sure this fits by entering your model number.||The same AT Command with HM-10. Main Chip is CC2541F256, Compatible with iOS 7 or later and Android 4.3 or later.||DSD TECH 6 PIN base Board, leads to VCC, GND, TX, RX,STATE,EN. You can be very convenient to connect to your arduino project or other DIY project.||Working voltage 3.6 V to 6V,Default baud rate is 9600.