Please note that you do not *need* another serial software (putty or equivalent) to receive serial debug information while flashing via OTA. The way I do is start a new instance of the Arduino IDE (by clicking on its icon a second time - not by using the "File > Open" which just opens a new sketch in the same instance) and set the port of this second instance to the traditional serial port.
+norm1124 Nein, bis jetzt noch nicht. Den Code publiziere ich jeweils auf Github. Und wenn es Platinen oder so was gibt, ebenfalls. Da habe ich "Room for Improvement". Allerdings steigt dann der Aufwand und es gibt noch mehr Nachtschichten ;-)
Hello Kind peoples i'm trying OTA programming on CC2538 SOC. initially i referred Z-stack in "IAR EMBEDDED WORKBENCH IDE " getting so much of errors couldn't able to solve those errors. now i'm trying in linux platform , can any one suggest me any web pages or any tutorials to implement this task. any help will be greatly appreciated! Thanks Ramesh
Hello, I am using Arduino IDE 1.6.8 and esp8266 board version 2.3.0, but under File->Example->ESP8266mDNS I do not find your OTA example? Do you know why? Thanks!
This is a quite old video and I did not play with this functionality. I changed completely to webupdate (see my newest video). I think, you find examples under "Arduino OTA", but I am not sure
Thanks for your reply. I have seen your videos about IoTAppStory and an update is definitely better. I would prefer to wait for some time prior to try it. I am not very good as an early adopter...
Sorry for my bad english. Scheduled tasks in the module, for example, I set up the day and time, when this time is reached, some action takes place. As it is implemented for example in sonoff, the scheduled task is configured at a certain time, in the application, and then written to the module. The task is executed regardless of whether the module is connected to the Internet or not. Independent scheduler in the module.
Do you mean #71? In this video is just what I need, but there's one task is configured at a specific time. How to do multiple tasks with the ability to set the time and day, e.g. for MQTT. So for example dl.itead.cc/IM160712005/sonoff_TH10_TH16-4.jpg in the application, you configure the timer task, but the task is recorded in the device itself and does not work in your application and sends a command to the device. Sorry if I was not clear explain.
why does mine get Arduino: 1.8.5 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200" Sketch uses 306540 bytes (29%) of program storage space. Maximum is 1044464 bytes. Global variables use 27728 bytes (33%) of dynamic memory, leaving 54192 bytes for local variables. Maximum is 81920 bytes. Uploading...... 23:12:32 [ERROR]: Error Uploading 23:12:32 [ERROR]: Error Uploading This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
Hi Andrea, #1 Just for my understanding : where is stored the OTA info in the ESP memory and how does it work (roughly) ? I am asking you so because I can understand that OTA still works quite well as long as the ESP is within reach of the router it has ***INITIALLY*** signed and connected to (by ways of 'ESP_BasicOTA.ino') ... but what happens if I switch to another router and still want to OTA my ESP ? Do I have to run once again the 'ESP_BasicOTA.ino' with the new credentials to force the ESP to memorize these in its memory ? #2 Just a (kinda) cosmetic question : how comes that, after a ***successful*** OTA upload, the IDE bottom window displays 2 error lines like below : Uploading ............................................................... 19:17:29 [ERROR]: No Result! 19:17:29 [ERROR]: No Result! Have you seen these error messages on your side and if so, do I really have to worry about it (I confirm again that the uploading ended successfully) ? Thanks again for your work.
+Yann M I only use webupdate, not the normal Arduino OTA. So, I cannot answer your questions. I just guess, that your ESP has to have a connection to the WiFi to do OTA. This is independent from OTA. To connect to any WiFI, it needs the credentials. Otherwise, the access point will not connect.
I had problem with the Wifi port not showing even if I restart my Arduino IDE. Solution: 1. make sure your PC is on same wifi network as on which you configured your boot loader program. 2. if still doesn't works, go to preference > Network and turn off proxy , restart IDE. 3. if still doesn't works, make sure your Wifi network is not blocking some contents from Firewall (usually happens in Universities or restricted Wifi networks)
Thank you for these episodes about the ESP8266 and IoT, didn't know the OTA was possible, very cool! Received my NodeMCU today BTW, so can finally start playing with it.
Hi Andreas I have been working on the OTA project and run into a few issues. 1. I am unable to find DNS_SD_Arduino_OTA.ino, I have searched ,I can loacte ESP8266mDNS holding 2 files: mDNS_Web_Server & OTA_mDNS_SPIFFS. Searching the internet, I am only able to find information on OTATest.ino. 2. Also where do I find out a reference for what the functions do? 3. When are you anticipating releasing your "looking further into the programming of OTA" Thank you kind sir
+Dean Greenhough For the moment I have to work for money and do not have a lot of time for my hobby ;-). So, I cannot help you right now. I think also, that there are two different OTA projects running, but I am not sure. In the meawhile I can only point you to the following page: github.com/esp8266/Arduino/issues You will find lots of info and helpful people there. They helped me too, when I had problems with OTA.
Hi Andreas, Great video, you gave me a good understanding about OTA. I was looking forward to update my ESP8266 over the internet remotely from a location far away from where my ESP8266 module is installed. Can you share some ideas about it? I'm kind of stuck. Thank You!
Very nice explained indeed. I use the python script that arduino uses to upload via OTA and now I can update my esp via R-Pi. There is a bit problem I have more then 100 ESPs connected to about 10 R-Pi and I am restricted to use DHCP, so every time when I update ESPs I need their IP address to do this. One solution that I came up with is to write an script to do that. Is there any way to make it possible at the ESP end? Instead of uploading the firmware by script can we just download the bin file directly to the flash in ESP, whenever I put the new bin file in particular directory? that would make ESPs self up-gradable whenever new firmware change is made in binary file.
Thank you for your videos, they are really interresting! You open so many "doors" for our schools projects! If I may ask you an advise, my students and I are working on a school project with an ESP8266. We need a sub program (only activate on boot of the program by a special input during the first 3 sec) to start the Wifi to get update OTA like the one you show in that video. We try so many things, it seems to work but the wifi is always on and we don't want that (wifi on only when this sub program is activate). May we ask you to take a look of our small program to help us find how to get only wifi activate when the sub program is chose? www.cjoint.com/doc/16_10/FJAnVSqI1Mv_UPdate-on-demand.ino My students and I thank you in advance.
Did you try WiFi.disconnect() or WiFi.mode(WIFI_OFF)? I do not know if it works. Another possibility could be to use ESP.deepsleep for 1 microsecond and wake-up with WiFi disabled (after you did the OTA update). "ESP.deepSleep(microseconds, mode) will put the chip into deep sleep. mode is one of WAKE_RF_DEFAULT, WAKE_RFCAL, WAKE_NO_RFCAL, WAKE_RF_DISABLED. (GPIO16 needs to be tied to RST to wake from deepSleep.)" You can also have a look at my videos concerning IOTappstore, which give you another possibility for OTA.
I've been working through the night and as you say there are 2 different versions. I do believe I'm getting closer to resolving this and appreciate your early morning message. I will post up what I find, with your permission. Once again many thanks for replying. Have a good day at work
Hi Andreas! Good video, congratulations! I would like to ask you if there is a way to do the same but over the internet. I will appreciate your response. Thanks for sharing all your knowledge with us!
When I upload the bootloader code to the esp12e, I dont find my device in the port section. I restart the IDE and I added arduino to the softwares allowed in the firewall but I still get nothing. Any help please?
Andreas, although I subscribe to your channel, I have missed this episode somehow. Great content as usual! I'll have to try OTA. How reliable is it now?
+Hari Wiguna Thank you for your comment. I also see your videos and liked the last with the stop motion intros. After the first tries with OTA a few weeks ago I did recently quite some uploads and had no problems. So, for the moment (or for the configuration I currently use?) it is stable.
hello, i am new to use node mcu. i am trying to write interrupt handler to receive data through uart. when node mcu receives any data on uart it shud go in the interrupt handler. please help me out with this. thanks in advance.
I do not know. Usually, the time to transfer our small data is very short compared to all other things like establishing the connection or connect to Wi-Fi
Hi Andreas, Thanks for your contribution clarifying how OTA works on the ESP8266 board. I have successfully implemented OTA to my ESP12E/ESP8266 board and my OTA uploads work quite right ! I still have an issue, though. I understand that the serial monitor can NOT work over the air on the same port that the one that has been used for OTA (well, ESP8266 is not supported this way within the Arduino/IDE). However, monitoring my program is mandatory for me and I would like to be able to monitor it via Wifi when it runs. I saw in your video that you're using Putty to monitor it on COM13 ! How did you manage to establish a link between COMxx and the WiFi connection to the ESP (192.168.100.xx in my case) I have tried many other options to no avail (Telnet, SSH ...) Thanks
There are a few more videos out since this one. Maybe you watch them (one about telnet and two about the IOTappstore). Maybe they help. Currently, I use remotedebug (github.com/JoaoLopesF/RemoteDebug) to monitor my devices.
Hallo Andreas, es macht gut (ich meine 'Lopes_RemoteDebug') ! However, a few remarks (maybe I am doing something wrong) : #1 Telnet has to be closed then reopened again everytime the ESP is RESET, otherwise a Telnet network error window pops up #2 RemoteDebug's Telnet session is VERY slow to startup, meaning that any debug.print statement in the void setup() section is definitely lost (I use to monitor scrupulously the initialization of the WiFi connection, and now, without the serial monitor, this info is lost ... not enough time to debug.print it !) #3 Is there any way to speedup somewhat the Telnet baud rate, it looks like a 300bauds TTY back in the 70's ! Thanks again for your precious hints.
1. Yes, it resets 2. If I need this info, i put a delay(5000) at the beginning of the setup. This gives me time to start the telnet. But somethings I still debug with Serial. remotedebug is more for production environments and monitoring 3. I do not know about the speed. Sometimes it is quite fast, sometimes not. I have no clue about telnet, I just use it ;-)
Another question : You mentioned in your very exhaustive video #31 that you got inspired from the work of a certain John Lassen at www.john-lassen.de/index.php/projects/esp-8266-arduino-ide-webconfig This link does not work anymore, do you know of any Github or mirror where I could also check his work ?
Hello sir, I am following your videos and so far, i have re-achieved most of them. You are really good mentor for the humanity of course!. I do my master thesis, this year. Last semester i have graduated and my thesis about " Smart Home Automation on Esp8266 Wireless Sensors ". This year i am developing that project and i stuck at OTA problem, which causes " wdt reset " and requeries manuel reset. Sadly, as result i couldn't find any solution. Can you show me a way, please?
Remote diagnostics for hard problems is not easy/possible. And I assume, your problem is hard. Maybe you are aware of my videos about IOTappstory.com, which takes a different approach to OTA. I suggest to try them out if not done yet.
Are you using deep sleep? If so, you might not be generating the interrupt correctly or you might be using your boot configuration pins ( 0, 2, 15 ) for something else and the chip is resetting.
Hi - for #32 OTA - you didn't explain very well how you got serial commands from Arduino code to be displayed in Arduino IDE using PuTTY. Can you explain in more detail step by step.
Hi Andreas, thanks for prompt response. I just viewed #73 and even though it was not directly related to my question it still a fantastic informative video. My question to be more specific is how you go Serial comms from a device you were re-flashing OTA - i.e. did you have a separate serial cable to your PC from the ESP or were you somehow connecting to Serial OTA ?
Hi Mars, Could you finally get it working ...? I have been facing the same issue and haven't been able to solve it so far. I've tried to Telnet, SSH my OTA/ESP, but to no avail ...
Hallo Andreas, ich habe vor kurzem angefangen mich mit den ESP8266 Teilen zu beschäftigen und bin dadurch auch auf Deinen Kanal gestoßen. Hat mir sehr geholfen. Bei OTA hänge ich jetzt aber und ich hoffe Du kannst mir helfen. Ich habe 2 unterschiedliche ESP8266 Module gekauft, um mal zu testen, was mir am meisten zu sagt. Eines ist ESP8266-F mitz 4M flash ohne USB Anschluss und eines ist das NodeMcu Lua ESP-12E WIFI Development Board. Bei letzterem funktioniert alles wunderbar. Beim ersten kann ich zwar per FTDI Adapter die Software flashen, aber per OTA klappt nichts. Irgendwie kann keine Verbindung aufgebaut werden, obwohl das ESP8266 im WIFI angemeldet ist. Ich kann sogar per MQTT die interne LED ein und aus schalten. Nur OTA funktioniert halt nicht, obwohl ich das gleiche script drauf habe, wie beim Development Board. Woran könnte das liegen? Vielleicht hast Du eine Idee. Würde mich freuen. 73 de OE4HDS
Hallo Andreas, nachdem ich heute Nachmittag Stunden damit verbracht habe, das Problem zu lösen, konnte ich es gleich, nachdem ich Dich hier um Hilfe gebeten hatte selber lösen. Ich musste einfach die Verbindung von GPIO0 zu GND kappen. Ich bilde mir ein, dass ich das heute Nachmittag aber schon ohne Erfolg gemacht hatte, aber nach alledem weiß ich jetzt nicht mehr sicher, ob das stimmt. Jedenfalls funktioniert es jetzt wunderbar. Ich habe aber in meiner loop() den kompletten code ohne Bedingung drinnen, also ArduinoOTA.handle(); und den normalen Programmcode. Da wird immer alles ausgeführt. Funktioniert und man muss beim OTA keine Buttons drücken oder sonstwas machen. Keine Ahnung, ob das einen unerwünschten Sideeffect hat. Mal sehen.
+Flo wey I am not a specialist in this matter. I was glad that other people solved the OTA problem ;-). The right place to ask this question is: github.com/esp8266/Arduino/issues/ There are the guys with the "big heads"
Not easy. Your module has to know if it has to start the normal operation or if you want to do an update. Any signal (noise, light, temperature etc.) can be used instead of a button. I read also that you can do a OTA from a web service. This would then first check, if a new version is available and update. This web service could be called every time you start the module. But I never tried it so far.
Andres - I appreciate the quick reply, thanks! I make eng videos as well. My esp8266 will be deployed where physical access to it is not possible. My idea is that though a HTTP request my device will look if there is an update, if there is one it would somehow download the firmware, flash itself then auto restart. With the code you described above I should be able to initialize the otaInit() method from a web request instead of a button press correct? My issue is my device will never be powered down, so it cannot do any checking on startup.
I managed to do this i.e. no special buttons to press. Here is tutorial : elementztechblog.wordpress.com/2016/06/28/over-the-air-update-for-esp8266-using-arduino-ide/
+XerotoLabs Thanks! I just saw, that you were also quite productive in the last few days! I had no time to watch youtube because i anyway was behind schedule...
+Andreas Spiess work and arranging my work room is still ongoing , but i had some time to get a few done. I have many projects on the go . One is repairing a MOSFET in my 'new to me' W10 laptop so it can run of AC plug. LOL It's a very busy season too . you make great videos , always well done .
I really enjoy your videos. Very clear and straight forward. You have helped me with my IoT experiments a lot.
+Ian Buchanan Thanks, that is what I intended...
Please note that you do not *need* another serial software (putty or equivalent) to receive serial debug information while flashing via OTA. The way I do is start a new instance of the Arduino IDE (by clicking on its icon a second time - not by using the "File > Open" which just opens a new sketch in the same instance) and set the port of this second instance to the traditional serial port.
Good idea!
Thanks! That's a great tip!
Danke für all die Tipps und Links. Hast Du dazu eine "gesammelte Werke" (= Blog / Google Doc / o.ä.) mit allen Perlen?
+norm1124 Nein, bis jetzt noch nicht. Den Code publiziere ich jeweils auf Github. Und wenn es Platinen oder so was gibt, ebenfalls. Da habe ich "Room for Improvement". Allerdings steigt dann der Aufwand und es gibt noch mehr Nachtschichten ;-)
+Andreas Spiess kommt mir so bekannt vor...
Hello Kind peoples i'm trying OTA programming on CC2538 SOC.
initially i referred Z-stack in "IAR EMBEDDED WORKBENCH IDE " getting so much of errors couldn't able to solve those errors.
now i'm trying in linux platform , can any one suggest me any web pages or any tutorials to implement this task.
any help will be greatly appreciated!
Thanks
Ramesh
Maybe you watch my newer videos about IOTappstory.com?
Hello,
I am using Arduino IDE 1.6.8 and esp8266 board version 2.3.0,
but under File->Example->ESP8266mDNS I do not find your OTA example?
Do you know why?
Thanks!
This is a quite old video and I did not play with this functionality. I changed completely to webupdate (see my newest video). I think, you find examples under "Arduino OTA", but I am not sure
Thanks for your reply.
I have seen your videos about IoTAppStory and an update is definitely better.
I would prefer to wait for some time prior to try it.
I am not very good as an early adopter...
Please create video about esp8266 sheduler, how this can be done
What do you mean with a scheduler?
Sorry for my bad english. Scheduled tasks in the module, for example, I set up the day and time, when this time is reached, some action takes place. As it is implemented for example in sonoff, the scheduled task is configured at a certain time, in the application, and then written to the module. The task is executed regardless of whether the module is connected to the Internet or not. Independent scheduler in the module.
You find a similar thing in video #7. But it does not work properly without internet connection, because the ESP8266 has no internal RTC.
Do you mean #71? In this video is just what I need, but there's one task is configured at a specific time. How to do multiple tasks with the ability to set the time and day, e.g. for MQTT. So for example dl.itead.cc/IM160712005/sonoff_TH10_TH16-4.jpg in the application, you configure the timer task, but the task is recorded in the device itself and does not work in your application and sends a command to the device. Sorry if I was not clear explain.
GeneriK This is all I have.
Why cant the OTA part be implamented into the boot loader of the arduino again? is it already fixed?
why does mine get
Arduino: 1.8.5 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200"
Sketch uses 306540 bytes (29%) of program storage space. Maximum is 1044464 bytes.
Global variables use 27728 bytes (33%) of dynamic memory, leaving 54192 bytes for local variables. Maximum is 81920 bytes.
Uploading......
23:12:32 [ERROR]: Error Uploading
23:12:32 [ERROR]: Error Uploading
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Maybe you try the blink sketch first. It seems to be a communication problem.
Hi Andrea,
#1 Just for my understanding : where is stored the OTA info in the ESP memory and how does it work (roughly) ?
I am asking you so because I can understand that OTA still works quite well as long as the ESP is within reach of the router it has ***INITIALLY*** signed and connected to (by ways of 'ESP_BasicOTA.ino') ... but what happens if I switch to another router and still want to OTA my ESP ?
Do I have to run once again the 'ESP_BasicOTA.ino' with the new credentials to force the ESP to memorize these in its memory ?
#2 Just a (kinda) cosmetic question : how comes that, after a ***successful*** OTA upload, the IDE bottom window displays 2 error lines like below :
Uploading ...............................................................
19:17:29 [ERROR]: No Result!
19:17:29 [ERROR]: No Result!
Have you seen these error messages on your side and if so, do I really have to worry about it (I confirm again that the uploading ended successfully) ?
Thanks again for your work.
+Yann M I only use webupdate, not the normal Arduino OTA. So, I cannot answer your questions. I just guess, that your ESP has to have a connection to the WiFi to do OTA. This is independent from OTA. To connect to any WiFI, it needs the credentials. Otherwise, the access point will not connect.
I had problem with the Wifi port not showing even if I restart my Arduino IDE. Solution:
1. make sure your PC is on same wifi network as on which you configured your boot loader program.
2. if still doesn't works, go to preference > Network and turn off proxy , restart IDE.
3. if still doesn't works, make sure your Wifi network is not blocking some contents from Firewall (usually happens in Universities or restricted Wifi networks)
Thank you for your valuable feedback!
Thank you for these episodes about the ESP8266 and IoT, didn't know the OTA was possible, very cool! Received my NodeMCU today BTW, so can finally start playing with it.
So, have fun with your new gadget!
Hi Andreas
I have been working on the OTA project and run into a few issues.
1. I am unable to find DNS_SD_Arduino_OTA.ino, I have searched ,I can loacte ESP8266mDNS holding 2 files: mDNS_Web_Server & OTA_mDNS_SPIFFS. Searching the internet, I am only able to find information on OTATest.ino.
2. Also where do I find out a reference for what the functions do?
3. When are you anticipating releasing your "looking further into the programming of OTA"
Thank you kind sir
+Dean Greenhough For the moment I have to work for money and do not have a lot of time for my hobby ;-). So, I cannot help you right now. I think also, that there are two different OTA projects running, but I am not sure. In the meawhile I can only point you to the following page: github.com/esp8266/Arduino/issues
You will find lots of info and helpful people there. They helped me too, when I had problems with OTA.
Hi! I have an ESP32. I'm using the library httpUpdate for OTA Updates. What is the difference between httpUpdate and ArduinoOTA? Thanks
I do not know.
Hi Andreas,
Great video, you gave me a good understanding about OTA.
I was looking forward to update my ESP8266 over the internet remotely from a location far away from where my ESP8266 module is installed. Can you share some ideas about it? I'm kind of stuck.
Thank You!
I am just working on this topic. The video will come out this or next Thursday.
Very nice explained indeed. I use the python script that arduino uses to upload via OTA and now I can update my esp via R-Pi. There is a bit problem I have more then 100 ESPs connected to about 10 R-Pi and I am restricted to use DHCP, so every time when I update ESPs I need their IP address to do this. One solution that I came up with is to write an script to do that. Is there any way to make it possible at the ESP end? Instead of uploading the firmware by script can we just download the bin file directly to the flash in ESP, whenever I put the new bin file in particular directory? that would make ESPs self up-gradable whenever new firmware change is made in binary file.
Look at my videos about the IOTappstore. I think, this would be an excellent solution to your problem.
Thank you for your videos, they are really interresting! You open so many "doors" for our schools projects!
If I may ask you an advise, my students and I are working on a school project with an ESP8266. We need a sub program (only activate on boot of the program by a special input during the first 3 sec) to start the Wifi to get update OTA like the one you show in that video. We try so many things, it seems to work but the wifi is always on and we don't want that (wifi on only when this sub program is activate).
May we ask you to take a look of our small program to help us find how to get only wifi activate when the sub program is chose?
www.cjoint.com/doc/16_10/FJAnVSqI1Mv_UPdate-on-demand.ino
My students and I thank you in advance.
Did you try WiFi.disconnect() or WiFi.mode(WIFI_OFF)? I do not know if it works.
Another possibility could be to use ESP.deepsleep for 1 microsecond and wake-up with WiFi disabled (after you did the OTA update).
"ESP.deepSleep(microseconds, mode) will put the chip into deep sleep. mode is one of WAKE_RF_DEFAULT, WAKE_RFCAL, WAKE_NO_RFCAL, WAKE_RF_DISABLED. (GPIO16 needs to be tied to RST to wake from deepSleep.)"
You can also have a look at my videos concerning IOTappstore, which give you another possibility for OTA.
Can i do the OTA from anywhere in the world?
For Ex :Programmer in US and ESP8266 or node MCU in INDIA.IS it possible with the above
With this concept: No. If you watch my newest videos you get a possibility to do that with IOTappstory.com
I've been working through the night and as you say there are 2 different versions.
I do believe I'm getting closer to resolving this and appreciate your early morning message.
I will post up what I find, with your permission. Once again many thanks for replying.
Have a good day at work
+Dean Greenhough Yes, please post it!
Hi Andreas! Good video, congratulations! I would like to ask you if there is a way to do the same but over the internet. I will appreciate your response. Thanks for sharing all your knowledge with us!
Maybe you watch my newest video about iotappstory.com ?
When I upload the bootloader code to the esp12e, I dont find my device in the port section. I restart the IDE and I added arduino to the softwares allowed in the firewall but I still get nothing. Any help please?
Remote diagnostics is not easy. So I cannot help.
Andreas, although I subscribe to your channel, I have missed this episode somehow.
Great content as usual! I'll have to try OTA. How reliable is it now?
+Hari Wiguna Thank you for your comment. I also see your videos and liked the last with the stop motion intros.
After the first tries with OTA a few weeks ago I did recently quite some uploads and had no problems. So, for the moment (or for the configuration I currently use?) it is stable.
Excellent. I'll try it this weekend. Thanks Andreas!
This is the clearest set of instructions for OTA, Sunday morning project, here we go. Many thanks Andreas
+Dean Greenhough Thanks. Unfortunately, I had to work today and had no time to deal with my hobby...
Ah, I was wondering how to do it. You served solution with the best possible way. Thank you again for preparing all videos.
+Robert Kesek You are welcome!
Are there new information for the esp8266-01 module? I often use them and it would be much easier to flash them ota.
They usually only have small flash chips.
hello,
i am new to use node mcu. i am trying to write interrupt handler to receive data through uart.
when node mcu receives any data on uart it shud go in the interrupt handler.
please help me out with this.
thanks in advance.
I never used interrupts on the ESP8266. So, I cannot help you.
Andreas can you make a video how to give arduino wifi access (esp8266) ?
+Artur Z No, i do not think so. There are Tutorials around and since I work with the ESPi never used a combination of both. So, I have no know-how
How fast esp8266 to transfer packets? In mbps.. upload speed. Thanks
I do not know. Usually, the time to transfer our small data is very short compared to all other things like establishing the connection or connect to Wi-Fi
Hey i just recently found this video too. I must say this is awesome to see i love Ota stuff helps me a lot now i see the Esp has OTA I'm happy :)
+joseph chrzempiec (josephchrzempiec) Great!
+joseph chrzempiec (josephchrzempiec) Did you get it running? I have an exception and cannot get around.
Hi Andreas,
Thanks for your contribution clarifying how OTA works on the ESP8266 board.
I have successfully implemented OTA to my ESP12E/ESP8266 board and my OTA uploads work quite right !
I still have an issue, though.
I understand that the serial monitor can NOT work over the air on the same port that the one that has been used for OTA (well, ESP8266 is not supported this way within the Arduino/IDE).
However, monitoring my program is mandatory for me and I would like to be able to monitor it via Wifi when it runs.
I saw in your video that you're using Putty to monitor it on COM13 !
How did you manage to establish a link between COMxx and the WiFi connection to the ESP (192.168.100.xx in my case)
I have tried many other options to no avail (Telnet, SSH ...)
Thanks
There are a few more videos out since this one. Maybe you watch them (one about telnet and two about the IOTappstore). Maybe they help. Currently, I use remotedebug (github.com/JoaoLopesF/RemoteDebug) to monitor my devices.
Hallo Andreas,
es macht gut (ich meine 'Lopes_RemoteDebug') !
However, a few remarks (maybe I am doing something wrong) :
#1 Telnet has to be closed then reopened again everytime the ESP is RESET, otherwise a Telnet network error window pops up
#2 RemoteDebug's Telnet session is VERY slow to startup, meaning that any debug.print statement in the void setup() section is definitely lost (I use to monitor scrupulously the initialization of the WiFi connection, and now, without the serial monitor, this info is lost ... not enough time to debug.print it !)
#3 Is there any way to speedup somewhat the Telnet baud rate, it looks like a 300bauds TTY back in the 70's !
Thanks again for your precious hints.
1. Yes, it resets
2. If I need this info, i put a delay(5000) at the beginning of the setup. This gives me time to start the telnet. But somethings I still debug with Serial. remotedebug is more for production environments and monitoring
3. I do not know about the speed. Sometimes it is quite fast, sometimes not. I have no clue about telnet, I just use it ;-)
Another question :
You mentioned in your very exhaustive video #31 that you got inspired from the work of a certain John Lassen at www.john-lassen.de/index.php/projects/esp-8266-arduino-ide-webconfig
This link does not work anymore, do you know of any Github or mirror where I could also check his work ?
Hello sir, I am following your videos and so far, i have re-achieved most of them. You are really good mentor for the humanity of course!. I do my master thesis, this year. Last semester i have graduated and my thesis about " Smart Home Automation on Esp8266 Wireless Sensors ". This year i am developing that project and i stuck at OTA problem, which causes " wdt reset " and requeries manuel reset. Sadly, as result i couldn't find any solution. Can you show me a way, please?
Remote diagnostics for hard problems is not easy/possible. And I assume, your problem is hard.
Maybe you are aware of my videos about IOTappstory.com, which takes a different approach to OTA. I suggest to try them out if not done yet.
Thank you,sir! i will look them asap
Are you using deep sleep? If so, you might not be generating the interrupt correctly or you might be using your boot configuration pins ( 0, 2, 15 ) for something else and the chip is resetting.
Hi - for #32 OTA - you didn't explain very well how you got serial commands from Arduino code to be displayed in Arduino IDE using PuTTY. Can you explain in more detail step by step.
Maybe you want to watch my video #73 of today.This might help.
Hi Andreas, thanks for prompt response. I just viewed #73 and even though it was not directly related to my question it still a fantastic informative video. My question to be more specific is how you go Serial comms from a device you were re-flashing OTA - i.e. did you have a separate serial cable to your PC from the ESP or were you somehow connecting to Serial OTA ?
Hi Mars,
Could you finally get it working ...?
I have been facing the same issue and haven't been able to solve it so far.
I've tried to Telnet, SSH my OTA/ESP, but to no avail ...
your voice sound different that now
I am older and have better equipment;-)
@@AndreasSpiess Older and wiser , great videos !!!, good job
Sir can you make HTTP Advanced Update OTA from Raspberrypi server and esp ?
Look at my newest videos about the IOTappstore. This can be done also on a raspberry. It only needs php and a webserver
Thank you
Hallo Andreas, ich habe vor kurzem angefangen mich mit den ESP8266 Teilen zu beschäftigen und bin dadurch auch auf Deinen Kanal gestoßen. Hat mir sehr geholfen. Bei OTA hänge ich jetzt aber und ich hoffe Du kannst mir helfen.
Ich habe 2 unterschiedliche ESP8266 Module gekauft, um mal zu testen, was mir am meisten zu sagt. Eines ist ESP8266-F mitz 4M flash ohne USB Anschluss und eines ist das NodeMcu Lua ESP-12E WIFI Development Board. Bei letzterem funktioniert alles wunderbar. Beim ersten kann ich zwar per FTDI Adapter die Software flashen, aber per OTA klappt nichts. Irgendwie kann keine Verbindung aufgebaut werden, obwohl das ESP8266 im WIFI angemeldet ist. Ich kann sogar per MQTT die interne LED ein und aus schalten. Nur OTA funktioniert halt nicht, obwohl ich das gleiche script drauf habe, wie beim Development Board. Woran könnte das liegen? Vielleicht hast Du eine Idee. Würde mich freuen.
73 de OE4HDS
Hallo Andreas, nachdem ich heute Nachmittag Stunden damit verbracht habe, das Problem zu lösen, konnte ich es gleich, nachdem ich Dich hier um Hilfe gebeten hatte selber lösen. Ich musste einfach die Verbindung von GPIO0 zu GND kappen. Ich bilde mir ein, dass ich das heute Nachmittag aber schon ohne Erfolg gemacht hatte, aber nach alledem weiß ich jetzt nicht mehr sicher, ob das stimmt. Jedenfalls funktioniert es jetzt wunderbar.
Ich habe aber in meiner loop() den kompletten code ohne Bedingung drinnen, also ArduinoOTA.handle(); und den normalen Programmcode. Da wird immer alles ausgeführt. Funktioniert und man muss beim OTA keine Buttons drücken oder sonstwas machen. Keine Ahnung, ob das einen unerwünschten Sideeffect hat. Mal sehen.
Soweit ich weiss ist das so im Konzept. Das sollte keine Nebenwirkungen haben.
Thank you.This info is very useful.
+Bob Q You are welcome!
Could ssh replace serial capabilities?
+Flo wey I am not a specialist in this matter. I was glad that other people solved the OTA problem ;-). The right place to ask this question is:
github.com/esp8266/Arduino/issues/
There are the guys with the "big heads"
Hi Andreas, How could I preform an OTA update without having to press the buttons?
Not easy. Your module has to know if it has to start the normal operation or if you want to do an update. Any signal (noise, light, temperature etc.) can be used instead of a button.
I read also that you can do a OTA from a web service. This would then first check, if a new version is available and update. This web service could be called every time you start the module. But I never tried it so far.
Andres - I appreciate the quick reply, thanks! I make eng videos as well. My esp8266 will be deployed where physical access to it is not possible. My idea is that though a HTTP request my device will look if there is an update, if there is one it would somehow download the firmware, flash itself then auto restart. With the code you described above I should be able to initialize the otaInit() method from a web request instead of a button press correct? My issue is my device will never be powered down, so it cannot do any checking on startup.
+Roman Kozak Then you could watch my video #67 and start the request each day, each week, or each month. Without any human interaction
I managed to do this i.e. no special buttons to press. Here is tutorial : elementztechblog.wordpress.com/2016/06/28/over-the-air-update-for-esp8266-using-arduino-ide/
How does the ESP distinguish between OTA and normal operation during boot?
The yield() call in your loop should not be needed.
Maybe. I always include a yield() in my loop. Does not cost a fortune, but saves surprises...
+Andreas Spiess you only need it inside of loops statements in rare cases, the way it is used here it will never help.
so cool! nice
+XerotoLabs Thanks! I just saw, that you were also quite productive in the last few days! I had no time to watch youtube because i anyway was behind schedule...
+Andreas Spiess work and arranging my work room is still ongoing , but i had some time to get a few done. I have many projects on the go . One is repairing a MOSFET in my 'new to me' W10 laptop so it can run of AC plug. LOL It's a very busy season too .
you make great videos , always well done .