TCP Server 통신연습
1. TCP Server 설정과정
2. TCP Server 명령시퀀스
| NO | Command | Response | 설명 |
| 1 | PDP Context 설정 | See & Refer to corresponding page | |
| 2 | AT+CNACT? | Are there enabled PDPs? | |
| – | AT+CNACT=0,1 | Activate 0th PDP Context. | |
| 3 | AT+CASERVER=0,0,”TCP”,6000 |
Create TCP server with 0th PDP on port 6000 of 0th TCP connection |
|
| – | AT+CASERVER=0,0,”TCP”,6000,1 | RX data push to UART autiomatiicaly | |
| 4 | AT+CARECV=1,100 | Read 100 byte data | |
| 5 | AT+CASEND=1,5 | ||
| 6 | AT+CAACK=1 | ||
| 7 | AT+CACLOSE=1 | Close the connection with 1th TCP connection. | |
| AT+CACLOSE=0 | Close the connection with 0th TCP connection. | ||
| 8 | AT+CNACT=0,0 | Disconnect 0th PDP |
WiFi IoT Module
Bluetooth Module
5G/LTE/CAT-M1/NB-IoT
