Hello there!sorry if i m posting in a wrong session..i just bought two esp8266 modules and this https://www.sparkfun.com/products/9873 ftdi module.i did the wiring like this 5$ Arduino WiFi Module!? ESP8266 mini Tutorial/Review - YouTube the problem is that when i try to upload some code,it says error epcomm_open failed error..tried a lot of things with no luck..any ideas?
Sparkfun has a support forum and may be more considerate of your plight since you purchased from them.
I have multiple ESP8266-ArduinoIDE projects and no issues with a 3.3V Sparkfun Serial-USB.
Ray
I m not sure if its a problem of the ftdi or something with my wiring,or drivers...usb to serial is recognized by the computer..not sure about esp though...
mrburnette:
Sparkfun has a support forum and may be more considerate of your plight since you purchased from them.I have multiple ESP8266-ArduinoIDE projects and no issues with a 3.3V Sparkfun Serial-USB.
Ray
Just looked your projects..awesome work..really amazing..i ll surely try a lot of them!!
ok,i ve tried this tutorial http://rancidbacon.com/files/kiwicon8/ESP8266_WiFi_Module_Quick_Start_Guide_v_1.0.4.pdf
and surprisingly,when i hook up the esp (open serial monitor) i get this: ready.
but when i try to send AT or AT+RST nothing happens.it just writes the command i ve send in the serial monitor.
what could it be??
tried this: arduinesp.com - This website is for sale! - arduinesp Resources and Information.
that happenned..
Sketch uses 197.452 bytes (37%) of program storage space. Maximum is 524.288 bytes.
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_send_command: wrong direction/command: 0x00 0x08, expected 0x01 0x08
warning: espcomm_sync failed
error: espcomm_open failed
any ideas???
also the led turns on when i wire everything...is that a problem??
thrylosthyra7:
ok,i ve tried this tutorial http://rancidbacon.com/files/kiwicon8/ESP8266_WiFi_Module_Quick_Start_Guide_v_1.0.4.pdf
and surprisingly,when i hook up the esp (open serial monitor) i get this: ready.
but when i try to send AT or AT+RST nothing happens.it just writes the command i ve send in the serial monitor.
what could it be??
There are many modules shipping with a bunch of different firmware. Some default to 9600 BAUD and some default to 115200 BAUD. Some are LUA based, some are AT command and I guess some may be shipped 'blank'. It is a mess out in ESP8266 land. As much as I hate to recommend a product that is more pricey than necessary, you may want to buy just 1 of the Adafruit or Sparkfun products as you know they will come configured properly (or be replaced.)
OR, you can do like I do, just utilize the Arduino add-in from IGRR here. This will overwrite all of the firmware.
Ray
since you are so kind,i may ask!if i update the firmware,will i be able to program it through arduino ide,with the default language?(i think its wiring and many commands like pinmode etc are working).i m not familiar with lua language...
Yes, there is an Arduino core (with some limitations) for the ESP8266.
Information here: GitHub - esp8266/Arduino: ESP8266 core for Arduino
i know this arduino core!i m thinking!if i update my esp,will it continue working with this ide?
When you upload programs from the Arduino IDE using that core, it overwrites any firmware already on the ESP8266.
Hackscribble:
When you upload programs from the Arduino IDE using that core, it overwrites any firmware already on the ESP8266.
oh!i see!i thought that somehow it could change and i should use lua language...
do you know of any tutorial i should use?
does my problem seem like a firmware problem,or something else??i tried this: arduinesp.com and the thing is that my led turned on when i wired everything..but still cannt communicate with the board...
Did you select the right programmer ?
In Tools->programmer select esptool
1.6.5 doesnt have esptool...is this a problem?should i try something else??
First you have to install the Arduino plugin as explained in the link that Hackscribble provided:
already did!it does show the generic esp8266 and other options on board type,but no esptool on programmer...