AS3935 Standard Board
ams Demo Kit Manual, Confidential
Page 5
[v1-03] 2014-Jul-08
2.4 Buzzer
Label
Modulation
Info
D
1x500ms ON
Lightning detected
2x150ms ON
Lightning detected: Distance to the previous lightning has
changed
4x50ms ON
Disturber detected
Note:
The buzzer alarm can be modified or turned off via the GUI
2.5 LCD
Label
Description
Sign
Booting
After power on of the demo board, the
austriamicrosystems logo and the
firmware version will be displayed.
Antenna Tuning
After start-up the antenna of the
AS3935 is automatically tuned. The
tuning uses the internal array of
capacitors to achieve 500kHz as
resonance frequency. The resonance
frequency and the internal capacitance
are shown on the LCD.
RCOs Calibration
After the antenna tuning the internal
RC-Oscillators are calibrated. The
SRCO is calibrated to 32kHz and the
TRCO is calibrated to 1.1MHz. Both
frequencies are displayed.
USB connected
The demo board can be connected via
USB. As soon as the USB bus is
connected the sensor is turned off and
all settings of the AS3935 can be saved
in the GUI. If the demo board is power
cycled when the USB plug is already
connected, the LCO and RCO
calibration is not executed, in order to
allow the user to do those calibrations
via the GUI.
Listening Mode
After the calibration, the Lightning
sensor is set in listening mode. No
storm is within detection range.
