Version 1.17 2011-09
25
3 Operating Status
The module can be in different modes (see the Serial Port Adapter AT command Specifica-
tion for more information about the modes) and the RED, GREEN and BLUE signals can be
used to detect or indicating the status, see Table 14. The LED signals are active LOW.
Table 14: Signal states in different module modes
Serial Port Adapter Mode
Status
RGB LED
Color
GREEN
GPIO
BLUE
GPIO
RED
GPIO
Data mode
IDLE
Green
LOW
HIGH
HIGH
AT mode
IDLE
Orange
LOW
HIGH
LOW
Data mode, AT mode
CONNECTING* Purple
HIGH
LOW
LOW
Data mode, AT mode
CONNECTED* Blue
HIGH
LOW
HIGH
* On data activity the active LEDs flashes and will be HIGH for 50-100ms. For information on how to suppress the
flashes see section A.2.3.1.
DTR signal can be set to indicate an active Bluetooth link. For more information see Serial Port Adapter AT com-
mand Specification.
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