Step 1) Open Hyperterminal (or your preferred terminal emulator)
Step 2) Select new connection
Step 3) Name your port
Step 4) Choose the correct COM port
Step 5) Configure the port with the following settings:
- Bits per second: 115200
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow control: Hardware
Step 6) Send AT commands to the unit