WIFI-2 pinout

Pin # Signal Description
1 TX RF ON/OFF control. Low=OFF. Pull-up to 3V3 with an external 4.7K resistor
2 3V3 Power supply 3.3 VDC
3 D- USB data -
4 D+ USB data +
5 GND Ground
6 LED Module working status led output
7 WPS WPS function. Low level activated