SWRU301

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4.4 Creating a BLE Connection between Central and Peripheral Devices

At this point the central device (connected to the PC) is ready to discover other BLE devices that are

advertising. If you have left the SimpleBLEPeripheral application running on one SmartRF05EB, you should

be ready to use BTool. As long as the SmartRF05EB running the SimpleBLEPeripheral is powered up and

un-connected, it should be in discoverable (advertising) mode.

4.4.1 Scanning for Devices

Press the “Scan” button under the “Discover / Connect” tab as shown in Figure 9.

Figure 9 BTool, Scan for Devices

The central device will begin search for other BLE devices. As devices are found, the log on the left side of

the screen will display the devices discovered. After 10 seconds, the device discovery process will

complete, and the central device will stop scanning. A summary of all the scanned devices will be

displayed in the log window. In the example in Figure 10, one peripheral device was discovered while

scanning. If you do not want to wait through the full 10 seconds of scanning, the “Cancel” button can be

pressed alternatively, which will stop the device discovery process. The address of any scanned devices

will appear in the “Slave BDA” section of the “Link Control” section in the bottom right corner of the sub-

window.

Figure 10 BTool, Slave Address