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When the motor stops, the redundant electricity can be discharged from the circuit loop formed by diodes,
thus avoiding component damages.
3.17. LCM Interface
SC20-WL module provides an LCM interface meeting MIPI DSI specification. The interface supports high
speed differential data transmission, with up to four lanes and a transmission rate up to 1.5Gbps per lane.
It supports maximally 720P resolution displays.
Table 16: Pin Definition of LCM Interface
Pin Name
LDO6_1V8
LDO17_2V85
PWM
LCD_RST
LCD_TE
SC20-WL_Hardware_Design
1uF
VIB_DRV
Module
Figure 18: Reference Circuit for Motor Connection
Pin No
I/O
Description
1.8V output power supply for
125
PO
LCM logic circuit and DSI
2.85V output power supply for
129
PO
LCM analog circuits
Adjust the backlight brightness.
29
DO
PWM control signal.
49
DO
LCD reset signal
50
DI
LCD tearing effect signal
3V3
1
C1
C2
D1
NM
4
Smart Wi-Fi Module Series
SC20-WL Hardware Design
VIB+
Motor
VIB-
Comment
1.8V normal voltage.
Vnorm=1.8V
I
max=100mA
O
2.85V normal voltage.
Vnorm=2.85V
I
max=300mA
O
Active low
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