User's Manual

XW71-WiFi
XW71N-WIFI module minimum system diagram
Explain:
1. The module does not need additional components, only need to supply the
module to work normally, the supply voltage is recommended 3.3V, the supply
current is greater than 500mA;GPIOMaximum drive current is 8mA；
2. 1-pin RST, low active, there is a 10K pull-up resistor inside the module, which
requires external MCU IO control；
3. The module's UART1 is connected to the external MCU's TXD, and the
module's TXD is connected to the RXD of the external MCU；
4. Module online upgrade, just connect the UART2 port, and then pull the RST
down more than 15ms and then release it, or it can be reset by software；
4. Serial 5V-3V level translation reference circuit
5V-3V level translation reference circuit
5. Antenna clearance area
XW71N needs to be soldered on the PCB board, in order to obtain the best
RF performance, as shown in the following figure, the PCB on-board antenna
below, there can be no copper, devices, traces, PCB design needs to be the
corresponding area for headroom treatment.