Data Sheet

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Wireless-Tag Technology Co., Limited http://www.wireless-tag.com
6、RST Key
Touch the self-reset button to connect to the EN pin of ESP32. This button can be used
to reset ESP32.
7、Type-C Interface
Universal USB-C interface (Type-C interface), this interface is used to power the
development board, UART communication and firmware download. The hardware of the
download circuit implements data flow control, so the firmware download supports one-
click automatic download.
8-9、Expansion Board Interface
The interface of the external expansion board can be used for power supply,
communication, control, etc. So as to achieve functional expansion to meet the various
needs of users. The 8 and 9 interfaces are connected by Pin to Pin, so the circuit connection
of the expansion board inserted into the 8 interface and the 9 interface is the same, but
only to meet the user's experience of installing the expansion board in different directions.
Simultaneously: When the IO of the two expansion boards does not conflict, two expansion
boards can be inserted at the same time to achieve two expansion functions. Expansion
board interface specifications: 2.0mm pitch, 2X20Pin, can be installed on both sides of the
horizontal row. The interface definition is shown in Figure 3-Extended Edition Interface
Definition Diagram.
10、Power Indicator
The power indicator (red light) lights up when you plug in the USB cable.
11、UART Communication Indicator
The TXD indicator and RXD indicator in the UART will flash when there is data flow.