Description:

This Seeed BLE Shield utilizes an HM-11 module to provide your Arduino/Seeeduino with serial BLE function. It only takes two pins of the micro controller to communicate your device with this shield. With support for a BLE ComAssistant APK, this BLE Shield can talk to your mobile phone more easily without pairing. 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 shield so that you can use neat and concise code to run the function.

It is based on TI’s CC2541 BLE module, which is ideal for ultra-low power systems with built-in powerful network nodes. The module is small and easy to use, with the manufacturer’s pre-programmed firmware, you can quickly build BLE communication via its AT command. Supports communication with iPhone, iPad and Android 4.3 BLE.

Features:

   –  Bluetooth protocol: Bluetooth specification V4.0 BLE
   –  Operating frequency: 2.4 GHz ISM band
   –  Interface mode: serial port
   –  Open environment within 30 meters, communication between modules can be realized . There is no byte limit between sending and receiving modules.
   –  Modulation method: GFSK
   –  Transmit power: – DBM, 23-6 DBM, 0 dBm, 6 dBm, can be modified by AT command
   –  Using TI CC2541 chip, 256KB configuration space, support AT command, users can change the role of the equipment (master, slave mode) and serial port baud rate, name, matching parameters, such as password, flexible use.
   –  Power supply: +3.3 VDC 50 mAh
   –  Working temperature: – 5 ~ +65