User's Manual
7. Immediate Alert
To sound the buzzer located on the CC2541
Keyfob, write the following value to handle
0x0028:
01:00 for low Alert
02:00 for high Alert
00:00 to turn off.
The buzzer will sound for 10 seconds.
8. Terminate Connection
To terminate the connection you will have three
options:
Remove the battery from the CC2541
Keyfob, which will trigger a supervision
timeout.
Move the CC2541 Keyfob out of range
(typically >10m), which will trigger a
supervision timeout.
Press the “Terminate” button in BTool as
indicated in the image below.
9. Source Code
The project and source code files for the pre
programmed application (as well as many others)
are included with the Bluetooth low energy (BLE)
stack from Texas Instruments, which can be
downloaded at www.ti.com/ble-stack.
The project implementing this demo is called
Keyfobdemo (CC2541 Slave configuration). The
project can be modified as desired, and should
provide a good framework for developing your
own custom BLE applications.
More details on these projects can be found
within the BLE Software Developer’s Guide,
which is included with the stack.
For troubleshooting please refer to the
CC254XDK-MINI User Guide, found at...
Evaluate Using iPhone 4S/5
1. Download the Application
The iPhone 4S/5 app can be downloaded via
iTunes (found at www.apple.com/itunes) or App
Store which are pre installed on the iPhone 4S/5.
!! This image will be updated when App released
2. Connect to CC2541 Keyfob
!! This image will be updated when App released
3. Evaluate the Application
TBD
Additional Tools and Links
BLE Packet Sniffer
The CC2540 USB Dongle can be used as a BLE
sniffer and monitor packets while the iPhone 4S
Demo is running.
The SmartRF Protocol Packet Sniffer software
can be downloaded at www.ti.com/packetsniffer
SmartRF Flash Programmer
Texas Instruments has a simple tool which can
be used to program and flash the CC2541.
SmartRF Flash Programmer can be downloaded
at www.ti.com/tool/flash-programmer
IAR Embedded Workbench
To develop software, program, and debug the
CC2541, you should use IAR Embedded
Workbench for 8051.
More information on IAR EW8051, including a
free evaluation version download, can be found
at www.iar.com/ew8051.
BLE E2E Forum
For additional help, visit the TI Bluetooth low
energy E2E forum, www.ti.com/ble-forum, for
instant support during your development.
BLE Wiki
Our BLE Wiki contains application examples,
guides and documentation covering those extra
steps you might need help with. The Wiki is not
only managed by Texas Instruments employees
but also E2E community members. Anyone can
share, edit and make use of the information
posted here. The Wiki is found at www.ti.com/ble-
wiki.
Useful Links
TI BLE Stack and Software:
www.ti.com/ble-stack
CC2540/41 Development Kit User Guide:
www.ti.com/lit/pdf/swru ####
CC2540/41 BLE Software Developer’s Guide:
www.ti.com/lit/pdf/swru271
CC2540/41 User’s Guide:
http://www.ti.com/lit/pdf/swru191
CC2541 Product Page:
www.ti.com/cc2541
Beep