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8.3
Running Demos
Assuming you wish to run your first demo on 5 volt/line power and with the Demo Mode jumper in its desired
position, slide the “Power Mode Switch” to the “LINE” mode.
1.
Open the ARM BT4 Browser Application on the phone or tablet.
This App is required to be used for the Sensor demonstration. It can also be used for the Beacon
Demonstration but you may find that use of the Google UriBeacon App is more useful.
2.
Press the Red RESET button on the Eval board for ~ 1 second and release.
3.
The BT4 board should be shown in the device list.
In Sensor mode, the board should be shown as “BT4Eval”
In Beacon m
ode, The board should be shown as “BT4Uri”
4.
If a BT4 device is not seen, toggle the STOP/SCAN on the top right corner of the App to initiate another
scan. If the device is still not seen, press the Red RESET button again for 1 second and reinitiate an
additional scan on the application.
5.
Wirelessly connect to the board by selecting “Browse” or “Sensors”.
In sensor mode you can tilt or move the board to show the X, Y, Z axis values change. You can
blow warm breath on the temperature sensor to change its value. (The temperature sensor and
gyroscope are located on the back of the PCB (U16 and U18).
In Beacon mode you will see the advertising data or URL string that is being broadcasted.
Depending on which version of Android app you have, you may have the ability to wirelessly
connect to the beacon and change the URL in which it is broadcasting.
NOTE: Please see Section 3.5.2 for a description of the use of t
he Blue “WKUP” push
button to place the unit into connectable mode
.
If jumpers are installed on J22 (Section 3.4.4), the D4 LED will show the connection status in
either of the two demo modes. If you do not wirelessly connect with the Eval board within 30
seconds after power-up or reset, the LED will stop blinking fast (indicating that the board is no
longer connectable),
and will begin to flash slowly. Press the Blue “WHUP” push button again to
allow a wireless connection between the Eval board and a host device. (Pressing the blue button
twice in a row, about 1 second apart) may need to be done for some FW versions).
If sensor or beacon data is not enumerated on the screen, or if the wireless connection is dropped, you can re-
establish the connection by toggling on and off the Connect/Disconnect button on the top right corner of the
screen.
If things work well on 5V/USB, try it in battery mode by removing the USB/5 volt cable, moving the Power mode
switch
to the “BATTERY” position and turning on one of the 3 battery switches. The center switch for 1.5v AAA
battery is preferred. (Remember that only one Battery switch may be “ON” at any one given time). If the board
does not appear in the app while it is scanning, press the Reset button for one second and re-scan.