BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 13
Slave
LED Indicator
Status
Description
RF Link
Steady Lit
RF signal is good (RSSI is greater than -
60 dBm)
Blink (1 s)
RF signal is normal (RSSI is between -61
and -80 dBm)
Blink (2 s)
RF signal is bad (RSSI is between t-81
and -100 dBm)
Blink (200 ms)
Not connect to master
Status
Steady Lit
Module initializes success(only turn on
for 3 second after power on)
Blink (50 ms)
Module initializes fail(keep turn on)
Blink (200 ms)
Temporary Buffer was full
Blink (50 ms)
RF receive data (flash once)
Broadcast mode
The RF link LED and status LED will turn on for 3 second after BLE-USB power on. The
connection had two roles – broadcaster and observer (scanner). Each role had different LED
pattern. The LED pattern was show in following table:
Broadcaster
LED Indicator
Status
Description
RF Link
Steady Lit
The RF Link LED will keep on in the
broadcast mode
Status
Steady Lit
Module initializes success(only turn on
for 3 second after power on)
Blink (50 ms)
Module initializes fail(keep turn on)
Blink (1 s)
Broadcast is start
Blink (2 s)
Broadcast is stop
Observer (scanner)
LED Indicator
Status
Description
RF Link
Steady Lit
The RF Link LED will keep on in the
broadcast mode
Status
Radiate (ON)
Module initializes success(only turn on
for 3 second after power on)
Blink (50 ms)
Module initializes fail(keep turn on)
Blink (50 ms)
RF receive data (flash once)
