User Manual

15. WPS description
The WPS pairing input pin is assigned to pin 41 on the connector and it is active low input. The WPS
input pin can be connected to on board push button or host processor. The current timing requirement
to trigger WPS function is in low state for no less than 6s but the timing can be adjusted.
16. LED description
There are 3 LEDs provided by the modules and it is active high output signal with pulse width
modulation feature.
1. WLAN_LED (AGPIO_B_1) – Wifi 5GHz LED
Turn on when wifi connection is available
Turn off when wifi connection is not available
Blinking when negotiation or traffic is on line
2. WPS_LED1(AGPIO_B_3) and WPS_LED2 (Red – AGPIO_B_13)
Green on when WPS pairing is active
Blinking 2Hz Green when WPS negotiation is in progress
Solid Red when WPS registration failed
Both off when WPS functionality is disabled
17. Spare GPIO description
There are 3 spare GPIO reserved for future use. They are AGPIO_B_10, AGPIO_B_11, and
AGPIO_B_16. Those spare GPIOs can be connected to host processor for general use. The
default state of all GPIOs is in input state.
AGPIO_B_10 and AGPIO_B_11 are pulled up on the module.
AGPIO_B_16 are floating on the module and please pulled down if not needed on the main
board.