Data Sheet

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Wireless-Tag Technology Co., Limited http://www.wireless-tag.com
Hardware Resource
The hardware resources of the development board are as follows:
Figure 2 shows the physical front view of the development board. It consists of a 3.5-inch
LCD screen with a resolution of 320x480 and a capacitive touch pad, and it Supports two
touch.
Figure 3 is the physical figure on the back of the development board, which contains
the following hardware resources:
1、ESP32-WROVER-B Module
Esp32-wrever-b is a Wi Fi + Bt + ble MCU module for all kinds of applications. It has
powerful functions and wide applications. It can be used in low-power sensor networks
and demanding applications, For example, voice coding, audio streaming and MP3
decoding. The parameters of this esp32-wrapper-b are:8Mbyte PSRAM+4Mbyte Flash.
2、TP Interface
Capacitive touchpad interface, I2C interface, 0.5mm spacing, 6pin, flip down type.
3、LCM Display interface
3.5-inch LCM display interface, SPI interface, 0.5mm spacing, 24pin. This SPI interface
is connected to the hardware HSPI interface of esp32, the operating clock frequency can
reach 80MHz. The screen parameters used are: Size-3.5Inch; Pixel density-165PPI;
Resolution:320*RGB*480; Screen model: WT-352215-A2.
4、Power management
Two LDOS of 3.3V output, One supplies power to the board itself, The other supplies
power to the external expansion board, The power supply is separated to prevent the
expansion board from interfering with the power supply of esp32, it ensures the stability
of the esp32.
5、External power interface
Reserved external power interface (positive and negative as shown in + - sign on the
figure), input voltage range 5v-9v, maximum load current I > 2A.