ESP8266 Community Forum

- Fri Jun 03, 2016 6:20 pm #48536

It seems that when uploading a python file (in micropython mode), ESPlorer isn't writing a newline at the end of each line, so python can't run the files as it sees them as one very long line!

Same problem here. Any new version coming up ? It´s so bad to go back to esptool.py to upload files to esp when we have this wonderfull ESPlorer tool !

- Fri Jun 03, 2016 6:36 pm #48537

It seems that when uploading a python file (in micropython mode), ESPlorer isn't writing a newline at the end of each line, so python can't run the files as it sees them as one very long line!

Actually, I´m using webrepl_cli.py to upload script files to esp. Esptool only for firmware.

- Sat Jun 18, 2016 4:06 am #49371 Hi 4refr0nt,

according to http://esp8266.ru/esplorer/#changelog the latest release is 0.2.0-rc5, but the download link is still at 0.2.0-rc3 as it seems.

- Sat Jul 30, 2016 10:18 am #51775 Hi, I usually get this error message when I run esp8266-01 for an hour, I always have to reflash nodemcu and then add 3 files again.
Can't autodetect firmware, because proper answer not received (may be unknown firmware).
Please, reset module or continue.

I try connecting RST pin to GND and then remove, but It shows some strange characters.

I have built bin file from http://nodemcu-build.com/, branch master
Here are 3 files I use:
init.lua

Code: Select alltmr.alarm(0, 10000, 0, function() dofile("uartDemo.lua") end)

mainIoTF.lua

Code: Select all
broker = "iot.eclipse.org" -- IP or hostname of IoTF service
mqttPort = 1883 -- MQTT port (default 1883: non-secure)
userID = "" -- blank for quickstart
userPWD = "" -- blank for quickstart
clientID = "xxx" -- Client ID
count = 0 -- Test number of mqtt_do cycles
mqttState = 0 -- State control

topic = "xxx"

t0 = tmr.time()

-- Wifi credentials
SSID = "xxx"
wifiPWD = "xxxxx"


function wifi_connect()
 wifi.setmode(wifi.STATION)
 wifi.sta.config(SSID,wifiPWD)
 wifi.sta.connect()
end


function mqtt_do(dataUART)
 count = count + 1 -- tmr.alarm counter

 if mqttState < 5 then
    mqttState = wifi.sta.status() --State: Waiting for wifi
    wifi_connect()

 elseif mqttState == 5 then
    print("Starting to connect...")
    m = mqtt.Client(clientID, 120, userID, userPWD)

    m:on("offline", function(conn)
        print ("Offline")
        mqttState = 0 -- Starting all over again       
    end)
    -- on receive message
    m:on("message", function(conn, topic, data)
      print(topic.." - " )
      if data ~= nil then
        print("data: "..data)
      end
    end)

    m:connect(broker , mqttPort, 0,
        function(conn)
            print("Connected to " .. broker .. ":" .. mqttPort)
            mqttState = 20 -- Go to publish state
            m:subscribe(topic,0,
                function(conn)
                    print("Subscribe topic: "..topic)
            end)
    end)

 elseif mqttState == 20 then
    mqttState = 25 -- Publishing...
    t1 = tmr.time() - t0
    if t1 > 100 then
        t1 = 0
        t0 = tmr.time()
 end
 -- t1 is used as emulated sensor data, real application will use GPIOx to sense external sensor
       
    m:publish(topic , dataUART, 0, 1,
        function(conn)
        -- Print confirmation of data published
            print("Sent message #"..count.." data:"..dataUART)
            mqttState = 20 -- Finished publishing - go back to publish state.
        end)   

 else print("Waiting..."..mqttState)
    mqttState = mqttState - 1 -- takes us gradually back to publish state to retry
 end

end


uartDemo.lua

Code: Select allrequire("mainIoTF")
function uartDemo()
    uart.on("data", "\r",
        function(data)
            print("receive from uart:", data)
            mqtt_do(data)
            if data=="quit\r" then
                uart.on("data") -- unregister callback function
            end
        end
    , 0)
end