125KHZ 读卡器模块
电源：５V
输出：RS232, WG26
读卡距离：8-10cm (厚卡，薄卡)
尺寸：32×32×８mm

PIN脚定义：
1 VCC 5V
2 GND GND
3 BEEP BEEP AND LED
4 ANT NO USE
5 ANT NO USE
6 SEL HIGH IS RS232,LOW IS WEIGAND
7 RS232 RS232
8 D1 WEIGAND DATA 1
9 D0 WEIGAND DATA 0