Untitled

wifi.sta.config({ssid = "SSID", pwd = "PASS"})
wifi.setmode(wifi.STATION)
wifi.sta.connect()
i2c.setup(0, 1, 2, i2c.SLOW)
oled = u8g2.ssd1306_i2c_128x64_noname(0, 0x3c)

tmr.alarm(1, 1000, tmr.ALARM_AUTO, function()
    if wifi.sta.getip() then
        tmr.stop(1)
    end
end)

function work_time(seconds)
    days = math.floor(seconds / 86400)
    hours = math.floor(seconds / 3600 - days * 24)
    mins = math.floor(seconds / 60 - days * 1440 - hours * 60)
    secs = math.floor(seconds - days * 86400 - hours * 3600 - mins * 60)
    return days .. "д, " .. hours .. "ч, " .. mins .. "мин, " .. secs .. "с"
end

function receiver(socket, data)
    print(data)
    info = data:match("GET /(%a+)")
    socket:on("sent", function(socket) socket:close() end)
    socket:send("HTTP/1.1 200 OK\r\n")
    if info then
        if info == "display" then
            oled:drawCircle(60, 35, 28, U8G2_DRAW_ALL)
            oled:sendBuffer()
            oled:clearBuffer()
            oled:sendBuffer()
        end
    else
        socket:send("Content-Type: text/html; charset=utf-8\r\n\r\n" ..
        "<html>" ..
        "<head>" ..
        "<title>NodeMCU</title>" ..
        "</head>" ..
        "<body>" ..
        "<button onclick='fetch(\"/display\")'>Нарисовать круг</button>" ..
        "</body>" ..
        "</html>")
    end
end

tmr.alarm(2, 1000, 1, function()
    if not wifi.sta.getip() and not tmr.state(1) then
        wifi.sta.connect()
        tmr.start(1)
    end
end)

web_server = net.createServer(net.TCP)

if web_server then
    web_server:listen(80, function(conn)
        conn:on("receive", receiver)
    end)
end