BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 12
2.2
BLE-USB Front View
Figure 2-1. Front View of BLE-USB
2.2.1 LED Indicator
LED Indicator
LED Color
Description
RF Link
Green
The connection status of Bluetooth LE
Status
Red
The module status of BLE-USB
The LED had different pattern in the connection and broadcast mode.
Connection mode
The RF link LED will blink for 3 second after BLE-USB power on, and the status LED
also will turn on for 3 second. The connection had two roles – master and slave. Each role
had different LED pattern. The LED pattern was shown in following table:
Master
LED Indicator
Status
Description
RF Link
Steady Lit
Connect to all salves
Blink (1 s)
Connect to slave, but not connect to
all slaves
Blink (200 ms)
Not connect to slave
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)
RF Link LED(Green)
Status LED(Red)
USB Type-A
