M5Stack sample code: Download a JPEG image from given URL, then display it on LCD.

M5StackViewImagebyURL.py

from m5stack import lcd
import socket
import os

def split_list(l, s):
    count = 0
    ni = []
    for i in range(0, len(l)-len(s)):
        if l[i] == s[count]:
            count=count+1
            if count == len(s):
                lcd.println("Matched")
                ni.append(i+1)
                count = 0
        else:
            count = 0
    if len(ni) == 0:
        return l
    else:
        r = []
        pi = 0
        for j in range(0, len(ni)):
            r.append(l[pi:(ni[j]-len(s))])
            pi = ni[j]
        r.append(l[pi:len(l)])
        return r
                

def http_getFile(url,file):
    _, _, host, path = url.split('/', 3)
    addr = socket.getaddrinfo(host, 80)[0][-1]
    lcd.println(str(path))
    s = socket.socket()
    s.connect(addr)
    s.send(bytes('GET /%s HTTP/1.0\r\nHost: %s\r\n\r\n' % (path, host), 'utf8'))
    while True:
        data = s.recv(200)
        lcd.println(str(len(data)))
        if data:
            l = split_list(data,[13,10,13,10])
            if len(l) == 2:
                lcd.println(str(len(l[0])))
                lcd.println(str(len(l[1])))
                file.write(l[1])
                break
    while True:
        data = s.recv(100)
        if data:
            file.write(data)
        else:
            break
    lcd.println("File got")
    s.close()
    file.close()
    
    
lcd.clear()
lcd.setCursor(0, 0)
lcd.setColor(lcd.WHITE)
os.remove("logo.jpg")
f = open('logo.jpg','w')
http_getFile("http://www.okadajp.org/RWiki/Rlogo-old.jpg", f)
#lcd.clear()
lcd.image(0, 0, file="logo.jpg", scale=0, type=lcd.JPG)