This Grove - Blueseeed LE (HM11) utilizes an HM-11 module to provide your Arduino/Seeeduino with serial BLE function, and it can be used with Arduino/Seeeduino very conveniently if using with Base Shield together. With support for a BLE ComAssistant APK, this Grove - BLE can talk to your mobile phone more easily without pairing, and of course, it can be set via AT commands directly. You can use it in many conditions, like robot controls or remote control equipment, etc. We prepared an easy and convenient command set for this product so that you can use a neat and concise code to run the function.