This Grove - BLE 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 neat and concise code to run the function.

Parameters

Specifications	Name
BT Version	Bluetooth Specification V4.0 BLE
Working frequency	2.4GHz ISM band
Modulation method	GFSK(Gaussian Frequency Shift Keying)
RF Power	-23dbm, -6dbm, 0dbm, 6dbm, can modify through AT Command AT+POWE
Speed	Asynchronous: 6K Bytes, Synchronous: 6K Bytes
Sensibility	≤-84dBm at 0.1% BER
Security	Authentication and encryption
Service	Central & Peripheral UUID FFE0,FFE1
Supply Power	3.3v - 5v
Working temperature	–5 ~ +65 Centigrade
Size	20cm x 10cm
Working Current	< 10 mA
Sourcing Current	< 20 mA
Sleeping Current	< 1 mA

Attention: The supply power of HM-11 is 3.3v, but the one of Grove - BLE is 3.3v to 5v