Smart LTE Module Series
Smart EVB User Guide
Smart_ EVB_User_Guide
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Table 11: Details of Test Points
3.13. Flashlight
Th
e Smart EVB provides a flashlight LED D202, for testing the module’s flashlight interface which
supports flash mode and torch mode. The following figures show a reference circuit design for flashlight
and its location on Smart EVB.
Flashlight
ANODE
D202
SW
ENF
VIN
A
G
N
D
A
G
N
D
Module
U201
10
5
4
FLASH_ EN
ENM
GND
TORCH _ MODE
11
13
SW
GND
P
G
N
D
G
N
D
VOUT
D2
VOUT
RSETF
D1
RSETM
GND
6
3
7
15
C2
75K
R2
20K
R1
10K
R3
10K
R4
1.0uH
R5
VBAT
L1
C
A
T
H
O
D
E
0R
C1
97
90
Figure 29: Reference Circuit Design for Flashlight Interface
Pin No.
Pin Name
Description
1
GPIO_T2
GPIO_68 test point
2
VDD_3V3
3.3V power supply of EVB
3
GPIO_ T2
GPIO_69 test point
4
CTS_3V3
3.3V CTS signal
5
VREG_L5
LDO5_1V8 power supply of the module
6
RXD_3V3
3.3V RXD signal
7
GND
Ground
8
RTS_3V3
3.3V RTS signal
9
GPIO_T1
GPIO_14 test point
10
TXD_3V3
3.3V TXD signal
