MeiG Smart product technical information
SLM500
Hardware Design Guide
Page 43
Important note: When designing the camera function, you need to pay attention to the
position of the connector. There will be a small person in the specification of the camera to
indicate the imaging direction. You need to ensure that the villain is standing on the long side
of the LCD, otherwise the camera will be flipped. The software cannot be adjusted at 90°. As
shown in the two figures below.
Figure 4.20
：
Camera imaging diagram
4.7.CapacitiveTouch Interface
The module provides a set of I2C interfaces that can be used to connect capacitive touches
while providing the required power and interrupt pins. The default interface pins for capacitive
touch software are defined as follows:
Table 4.7
：
Capacitive Touch Interface Definitions
Name
Pin
Input/Output
Description
GPIO10_TP_I2C3_SDA
48
I/O
The capacitive touch I2C
interface needs to be pulled up
toVREG_L5_1P8
GPIO11_TP_I2C3_SCL
47
I/O
GPIO65_TP_INT_N
30
I
TP
Interrupt
GPIO64_TP_RESET_N
31
O
TP
Reset
VREG_L6_1P8
125
O
1.8V Power supply to
TP I/O
VREG_L10_2P8
156
O
2.8V Power supply to
TP VDD
Note: The interface definition of the capacitive touch can be adjusted by software, and
the user can change the GPIO and I2C according to the design needs.
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