ESP8266 Community Forum

- Fri Aug 21, 2015 7:35 am #26684 Hi,
i am new in nodemcu ,can anyone help how to use nodemcu 12E in Explorer IDE. i try many

time Flasher bin file as attached, i also try other bin file from GitHub nodemcu firmware.

but every time i open Explorer i get this message Can't autodetect firmware, because proper answer not received.

- Sat Nov 14, 2015 4:40 pm #33986 I'm in the same boat. I followed the instructions from:

https://www.youtube.com/watch?v=cOnPWltYtQs

Pushed the prog button then reset. I am using the nodemcu/nodemcu-flasher (https://github.com/nodemcu/nodemcu-flasher).

Code: Select allNote:Detect serial port changed.
Note:Auto MAP serial port.Port-->COM3

Note:Serial port connected.
Note:Begin find ESP8266.
Note:Serial port disconnected.
Warning:Serial port closed by user.
Note:Serial port connected.
Note:Begin find ESP8266.
Note:Serial port disconnected.
Warning:Serial port closed by user.
Note:Serial port connected.
Note:Begin find ESP8266.
Note:Serial port disconnected.
Warning:Serial port closed by user.
Note:Detect serial port changed.
Note:Auto MAP serial port.Port-->COM5

Note:Serial port connected.
Note:Begin find ESP8266.
Note:ESP8266 ACK success.
Note:ESP8266 ACK success.
Note:ESP8266 ACK success.
Note:Set base address success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Serial port disconnected.

I used putty and dove into the system before pushing the reset. Upon reset I got the following in the putty screen:

Code: Select all0▒~?▒4▒R▒▒▒OI:▒COCE▒!▒▒OCA▒▒▒▒

NodeMCU 0.9.5 build 20150318  powered by Lua 5.1.4
lua: cannot open init.lua


I am running the baud rate at 9600 when connecting to the device but getting the same message from ESPlorer v0.2.0-rc2.

Code: Select all>
>
PORT CLOSED

PORT OPEN 9600

Communication with MCU...
Got answer! AutoDetect firmware...

Can't autodetect firmware, because proper answer not received.

> 0‚~?–4“R¶£ÿOI:¶COCE’!†üOCA

Did you end up getting an answer or resolving your problem?

Edit: Added more details.

Last edited by JeremiahLandi on Sat Nov 14, 2015 5:10 pm, edited 2 times in total.

- Sat Nov 14, 2015 5:07 pm #33990 There are 2 buttons up top labeled DTR and RTS

put both of them on

then click DTR once more to turn it OFF

then click DTR once more to turn it back on.

If you loop your esp with code flash back and forth from intager to float this will solve the loop init.lua will not be loaded so just format and wait for it to complete after reflashing.

So if you are on integer flash to float and open esplorer and click the format button

If you are on float flash to integer and open esplorer and click the format button

I normally use frightitanic builds cause you can select only the modules you need for the esp AKA custom.

Anyhow enjoy and welcome aboard.

Helpful? Donate To help support Mike http://www.esp8266basic.com click the donate button lets keep this project going and hope we can get the ESP32 in the mix. BEGINNERS GUIDE HERE http://www.esp8266.com/viewtopic.php?f=40&t=6732

Where I buy my ESP8266 boards from... (Banggood)

- Sat Nov 14, 2015 5:15 pm #33993 So i followed the steps and got the following feedback in the system window.

Code: Select allPORT OPEN 9600

Communication with MCU...
Got answer! AutoDetect firmware...

Can't autodetect firmware, because proper answer not received.

stdin:1: unexpected symbol near 'char(3)'
> 0‚~?–4“R¶£ÿOI:¶COCE’!†üOCA

Here are my settings from the top.

http://imgur.com/u0gcjET