라즈베리 파이 피코 Raspberry Pi Pico + WizFi360-EVB-Mini 로 WiFi Network 구축

HARDWARE 구성

 

Wiznet WizFi360-EVB-Mini

WizFi360-EVB-Mini

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

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

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Raspberry Pi Pico RP2040

RASPBERRY PI PICO 

https://www.raspberrypi.org/documentation/rp2040/getting-started/#board-specifications

https://www.raspberrypi.org/documentation/rp2040/getting-started/#board-specifications

 

Raspberry pi Pico + WIZ850io(W5500) 하드웨어 연결

Raspberry Pi Pico Pinout

WizFi360-EVB-Mini Pinout

Raspberry Pi Pico + WizFi360-EVB-Mini

WizFi360의 WiFi동작모드는 총 3 가지

- Station mode - SoftAP mode - Station + SoftAP mode

 

Station mode 

WizFI360 이 AP(공유기)에 접속하는 방식. AP로부터 DHCP 를 통해 IP 를 할당 받거나 Static IP 를 설정하여 사용

 

SoftAP mode

WizFI360 이 AP로써 동작하며, 다른 장치들이 Station 으로써 WizFi360 에 연결. WizFi360 은 연결된 장치들에 IP 를 할당하며, Local 망에서의 통신만 가능.

 

Station + SoftAP mode

WizFi360 이 Station, AP 역할 모두 가능.

 

1. Environment Setting

1-1. Hercules 설치해서 서버 구축하기

https://iotedition.tistory.com/4

WizFi360-EVB-Mini 무선 모듈 + AT command

 

1-2. MicroPython Thonny IDE 설치

https://thonny.org/

Thonny, Python IDE for beginners

Thonny Install

Thonny 설치 후 Raspberry Pi Pico 설정

Thonny Raspberry Pi Pico Install

 

Tools -> Options ->Interpreter

Raspberry Pi Pico config

Raspberry Pi Pico USB COMx

2.  Wizfi360을 통해 WiFi 구성

2-1. Hercules를 실행하여 Server Open

 

Port 번호 5000.

2. MicroPython WizFi360 AT command code

import os, sys import utime from machine import UART,Pin print(os.uname()) led = machine.Pin(25, machine.Pin.OUT) led.value(0) utime.sleep(0.5) led.value(1) #Functions def sendCMD_waitResp(cmd, timeout=3000):     print("CMD: " + cmd)     uart.write(cmd)     waitResp(timeout)     print()           def waitResp(timeout=3000):     prvMills = utime.ticks_ms()     resp = b""     while (utime.ticks_ms()-prvMills) < timeout:         if uart.any():             resp = b"".join([resp, uart.read(1)])     print(resp) #Uart info #uart = machine.UART(0, baudrate=115200, tx=Pin(0), rx=Pin(1)) uart = machine.UART(1, baudrate=115200, tx=Pin(8), rx=Pin(9)) print("UART Setting...") print(uart) #AT command Test sendCMD_waitResp("AT\r\n") #AT sendCMD_waitResp("AT+GMR\r\n") #AT ver utime.sleep(1) #sendCMD_waitResp("AT+RST\r\n") #reset sendCMD_waitResp("AT+CWMODE_CUR=1\r\n") # Station Mode sendCMD_waitResp("AT+CWDHCP_CUR=1,1\r\n") #DHCP on utime.sleep(1) sendCMD_waitResp('AT+CWJAP_CUR="SSID","PASSWORD"\r\n') #AP connecting sendCMD_waitResp("AT+CIPSTA_CUR?\r\n") #network chk #TCP Client sendCMD_waitResp("AT+CIPMUX=1\r\n") sendCMD_waitResp('AT+CIPSTART=0,"TCP","YOUR_IP_ADDRESS",5000\r\n') print("connected...") print("RPi-PICO with WizFi360") Data = bytes() while True:     if uart.any()> 0:         Data += uart.read(10)         print("read...")         utime.sleep(0.5)         led.value(0)         print(Data.decode('utf-8'))         led.value(1)

3. Pico WizFi360 AT command 실행 결과

 

WizFi360 Client_AT command

WizFi360 AT command

PC Server connect

AT command Server