-3
1. Hardware
(1) Pin Description
Pin No. Pin Name Pin Function
1,2,5,11~25,
27~29,31~38
GND Ground
3 LED LED Display
4,6,7,8,26,30 NC No Connect
9 TXD Transmitter Output For The Serial Port
10 RXD Receiver Input For The Serial Port
39 PEN Power Supply Enable
40~42 VCC Power Supply
