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Technologies
STAD156WT-15 Equipment Manual
Release 01/2019
7
10
GND
0V
485 Interface (J16):
Interface
Pin
Definition
Device Node
Level
UART3
1
3A
TtyS3
RS485
2
3B
UART4
3
4A
TtyS4
RS485
4
4B
2.2 USB-HOST Interface
The STAD156WT-15 has integrated 4 USB-HOST. These 4 USB
interfaces can be connected to a variety of USB peripherals, such as USB
keyboard and mouse, U disk, USB interface camera (support UVC
protocol) and other commonly used peripherals. One of them is
multiplexed with the capacitive touch interface.
USB / C is a native USB interface. It is recommended to connect a USB
camera to this interface.
2.3 USB-DEVICE Interface
DEV interface is USB-DEVICE interface. This interface can only be used
for system programming and ADB debugging.
2.4 GPIO Interface
GPIO interface, only support 3V3 signal pin.
Note: The triangle head is identified as pin 1 of the interface. The interface is built-in.
PIN
Definition
1
GND
2
GPIO3_D3-U
3
GPIO3_D1_U
4
GPIO4_B1_U
