WizFi360-EVB-Mini 무선 모듈 + AT command

Wizfi360 와이파이 모듈 기반의 미니 EVB보드

https://wizwiki.net/wiki/doku.php/products:wizfi360:board:wizfi360-evb-mini:start

products:wizfi360:board:wizfi360-evb-mini:start [Document Wiki]

WizFi360-EVB-Mini

Features

• WiFi 2.4G, 802.11 b/g/n
• Support Station / SoftAP / SoftAP+Station operation modes
• Support “Data pass-through” and “AT command data transfer” mode
• Support serial AT command configuration
• Support TCP Server / TCP Client / UDP operating mode
• Support configuration of operating channel 0 ~ 13
• Support auto 20MHz / 40MHz bandwidth
• Support WPA_PSK / WPA2_PSK encryption
• Serial port baud rate up from 600bps to 2Mbps with 16 common values
• Support up to 5 TCP / UDP links
• Obtaining IP address automatically from the DHCP server (Station mode)
• DHCP service for Wireless LAN clients (AP mode)
• Support DNS for communication with servers by domain name
• Support “Keep-Alive” to monitor TCP connection
• Support “Ping” for monitoring network status
• Built-in SNTP client for receiving the network time
• Support built-in unique MAC address and user configurable
• Support firmware upgrade by UART Download / OTA (via WLAN)
• Industrial grade (operating temperature range: -40 ° C ~ 85 ° C)
• KC, CE, FCC certification

 

1. Overview

WizFi360은 1MB flash가 내장된 ARM Cortex-M0기반 Chip과 AT command Firmware 기반의 모듈

WizFi360-EVB-mini Pinout

WizFi360-EVB-Mini Callout

2. Environment Setting

UART를 통해 AT command를 전송하여 WizFi360을 제어하며 Micro USB를 연결하였을 때 UART 1 사용

 

 

2-1. Hercules_3.2.8 SETUP utility Install

https://www.hw-group.com/software/hercules-setup-utility

Hercules SETUP utility | HW-group.com

Hercules_3.2.8 Download

 

2-2. 실행 후 UART 통신을 위한 Serial 프로그램 실행

 

Hercules Serial Program

2-3. Serial Program에서 COMx 와 Boud rate 설정 후 Open

USB Serial config

 

Serial Terminal에 AT 입력 후 Send

 

WizFi360이 OK를 return 하면, AT command 사용 가능

AT command

3. TCP Client Example AT command

3-1. Wifi Station mode 설정

Station mode 로 설정한다. AT+CWMODE_DEF 의 경우 flash 에 저장된다

3-2. Single Connection mode 설정

다중 접속 설정 값=0

3-3. DHCP enable 설정

Station mode 에서 DHCP enable

3-4. WiFi AP 에 연결

AP 접속 명령 AT+CWJAP_CUR="ssid","password"

3-5. WizFi360 device의 IP address 확인

현재 접속 중인 AP 정보 출력

+TCP/IP 기능

AT+CIPSTATUS : 접속정보

AT+CIPSTART : TCP 또는 UDP 포트 설정/연결

AT+CIPSEND : 데이터 전송

AT+CIPCLOSE : TCP 또는 UDP 접속 해제

AT+FSR : 로컬 IP 취득

AT+CIPMUX : 다중접속 설정

AT+CIPSERVER : 서버설정

AT+CIPMODE : 전송모드 설정

AT+CIPSTO : 서버 타임아웃 설정

AT+CIUPDATE : 네트워크를 통한 업데이트

AT+IPR : ESP 모듈의 Baud rate 설정