User's Manual

Information in this document is subject to change without prior notice. Page 7 of 11
4.3.3. Pin Definition:
Pin Name Description
1 TX
RF ON/OFF control; low level activated to
OFF(does not support)
2 VCC
5.0VDC or 3.3VDC, +/-5%
3 UD-
USB data-
4 UD+
USB data+
5 GND Ground
6 LED
Indicate module working status
7 WPS
External to activate WPS function. Low level
activated
Notes:
1. Does not support the TX function
2. LED terminal output 3.3V LED blink signal. To limit LED current, a series 330 ohm or
other value resistor should be connected.
3. WPS terminal is internally pulled up with an onboard 4.7K ohm resistor to 3.3VDC.