NB-IoT Module Series
BC66&BC660K-GL Compatible Design
BC66&BC660K-GL_Compatible_Design 20 / 30
It is recommended to reserve a 100 nF capacitor (C1 marked in blue) not mounted by default for
BC660K-GL.
The reset timing of BC66/BC660K-GL is illustrated in the figure below.
VBAT
RESET
BC66 ≥ 50 ms
BC66
RUNNING
OFF
RUNNING
BC660K-GL ≥ 50 ms
BC660K-GL
RUNNING
OFF
RUNNING
RESET_N
VBAT
Figure 9: Timing of Module Reset
1. The red part in the above figure is for BC66.
2. The black part in the above figure is for BC660K-GL.
4.4.2. Reset BC66/BC660K-GL with Software Method
AT+QRST=1 command can be used to reset BC66/BC660K-GL. For more details about the command,
see document [2] and document [4].
4.5. Network Status Indication
The NETLIGHT signal can drive a network status indication LED to indicate the network status of
BC66/BC660K-GL. A reference design is shown below.
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