ESP32 Access Point and Router connection explained

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ESP32 Access Point and Router connection explained

Рет қаралды 47,169

MoThunderz

Күн бұрын

Пікірлер: 46

@lenreinhart2020 2 жыл бұрын

I have been working through your videos using an ESP32-C3 using an on-chip 4Meg flash. Even though the C3 is Risk-V, I suspected that company would use the same code, just a different compiler. So far all is working fine. Thank you for this, it has saved me much head scratching. Your explanations are very clear and your code is very well organized. When I tried the Bluetooth videos, no joy, the compiler threw a fit with the ESP32C3 selected, many functions not found. I had hoped they would do like the WiFi, looking in google I see a post saying it only supports BLE, but the API docs show Classic and others. I tried to compile the BLEclient and BLEserver examples and they compiled, so I guess my best bet is to convert over to BLE (I wonder if my phone supports that). Thanks for the WiFi though, it was great.

@mothunderz 2 жыл бұрын

Thank you very much for the feedback! As for Bluetooth: BLE is actually more energy efficient and by far the better choice if you do not need a large data throughput. The one problem is that it is a bit more difficult to setup. I tried BLE in MIT App inventor, but it did not operate very stable. Might I find a good solution I will post it.

@johnvine5731 5 ай бұрын

That was great. You explain things extremely well. Thanks very much.

@davidkempton2894 2 жыл бұрын

Thanks very much for these videos. I have always wondered what all the code did in these applications. It is quite complicated but you have explained it well and although I couldnt write it from scratch I think that I could probably hack your code now to make something that I want. Cheers!

@mothunderz 2 жыл бұрын

You are welcome! Great to hear it is useful for you :-)

@0124akash Ай бұрын

Sir, how to make LAN to WiFi convert using ESP32 and enc28j60?

@engodhjertetdtu-studerende 5 ай бұрын

Great video man! Where did you learn all of this stuff? Do you have a book?

@patonaranjo9394 3 ай бұрын

hello Is it possible to connect a cell phone with an App Inventor application and send simultaneous data to two ESP32 modules to control different LEDs on each card? without occupying a router

@mayoortechinnovations Жыл бұрын

Thank you so much for this excellent explanation.. it's very helpful.. I was able to use your explanation to convert the default ESP32 Cam Arduino example code onto Access point mode... And it works well on my PC, but once I try connecting with my android phone it keeps connection and disconnecting.. please have you experienced such behaviour.. and what could be the solution.. thanks

@mothunderz Жыл бұрын

I am not familiar with the ESP32 Cam, but actually I have experienced the same problem with Android Phones disconnecting when I configure the ESP32 as a webserver. The solution for that was to change the order the services were started. In particular I needed to first start the websockets before starting the server with server.begin(); So in other words: I dont think it directly has to do with how the WiFi is configured, but rather the services themselves. Hope this helps...

@rameshganesan1930 2 ай бұрын

Thank you very much

@chirurdp3454 9 ай бұрын

Thanks. Helped me a lot. ❤

@mothunderz 6 ай бұрын

Thank you very much for your feedback!

@rleogNano33 5 ай бұрын

When does a new season of Scooby Doo come out?

@noweare1 Жыл бұрын

Thanks for this. I had it in my head that to be a server it had to be an access point and as client had to be in sta mode. So it can be a server no matter what mode it is in. But to access the esp32 from outside your lan it would have to be in sta mode. Also, as an access point, the esp32 has to create it own radio signal (wifi) ? I would think that that signal does not go too far so other devices connecting to it would have to be close by ?

@mothunderz Жыл бұрын

Yes, I think your understanding is correct: If you want to connect the ESP32 to your local network then you need to go for the "router connection". If you want to get a 1-to-1 connection directly on the ESP32 then you need to use it as an access point. As for the strength of the WiFi signal: it is strong enough for communication in the same room, but definitely you wont be able to access the WiFi signal off the ESP32 throughout the whole house. For that connection to your router is the better option.

@SPeeDKiLL45 Жыл бұрын

Great Great Video man. Thanks!

@mothunderz Жыл бұрын

You are welcome, thank you for your feedback!

@irshadirshu0722 2 жыл бұрын

can you make a video for a solution of esp32 cam wifi connecting issue .please help me . in serial monitor the dought printing continues but not connecting .and some times triggered please make video

@mothunderz 2 жыл бұрын

My apologies, but I dont really understand the issue you have with your ESP32. If your ESP32 is suffering from a weak WiFi signal, please see the link below. Hope this solves your problem. randomnerdtutorials.com/esp32-cam-troubleshooting-guide/#:~:text=If%20your%20ESP32%2DCAM%20AI,position%20for%20the%20desired%20antenna.

@user-pu1ki7vk9v Жыл бұрын

I wanted to thank you for the video but I was wondering if it is possible to communicate with only 1 cliënt instead of a webSocket.broadcastTXT? I want to thank you in advance :)

@mothunderz Жыл бұрын

Sorry for my late reply, I overlooked your comment. Yes, it is possible to send to a specific client. Instead of broadcastTXT just use: webSocket.sendTXT(clientId, jsonString); Here clientId is a uint8_t that refers to the id of the client you want to communicate with.

@user-pu1ki7vk9v Жыл бұрын

@@mothunderz Tanks for the Help🙏

@panxpatel 7 ай бұрын

Hi, I have followed the instructions and the code complied fine and uploaded but I am not able to see the wifi SID on the laptop or the phone. On ESP32, I am able to see red and a blue light constantly on. Am i missing something? thanks in advance.

@mothunderz 7 ай бұрын

What code are you referring to? the Router or the Access Point? What ESP did you upload it on (type number)?

@grahamheath3799 6 ай бұрын

thanks useful.

@aleksandarzivkovic1792 Жыл бұрын

Thaks for the video, very clear but for me it does not work! The esp loads and prints Ready etc. I have been using the router connection while writing my code. I followed the video and am getting ERR_ADDRESS_UNREACHABLE. I tried changing the IP and gateway still no change. Any ideas?

@mothunderz Жыл бұрын

Sorry to hear that you are having problems. Can you try to setup the ESP32 as an access point. Does that work? Do you have a second router to test with perhaps? What might also be a good debug method for you is to check with the code of this video if you can see the network: kzfaq.info/get/bejne/ZqecdLeds5-ZiWQ.html note that the ESP32 does not support 5G or 6G wireless. If the ESP detects the Wifi you can check with the code of this video if you can connect to it: kzfaq.info/get/bejne/Z5uIY7qnrMe6l2w.html Hope that you find a solution.

@ThanhNguyen-ub5ee 10 ай бұрын

This is a connection in an internal network created by esp32 and has nothing to do with the Internet or Wifi. So I wonder if you can make a video instructing how to use esp32 to create a DNS domain name so that people do not need to near the esp32 and connected to its internal network. Instead, anywhere as long as there is internet, can you access the Web interface created by the esp32? Thanks.

@mothunderz 9 ай бұрын

I dont recommend to put the ESP32 directly exposed on internet. Please use a Raspberry or something like that with decent security as firewall between the ESP32 and the internet. The ESP32 has only a very simple IP library and I dont think it is very well protected.

@ahanapal9095 Жыл бұрын

I am working on a project where i want to capture an image in ESP32 cam and send it to the server I am providing my local desktop ip address and when I am running that it is showing that the connection failed Can you tell me what is the issue? I don't have any router in my home i use my mobile hotspot for ssid and password

@mothunderz Жыл бұрын

I dont understand what you mean with that you use your mobile hotspot. The easiest way is to setup the ESP32 as access point and have your local desktop connect to the wifi of the ESP32.

@PyubX 6 ай бұрын

Cna you explain why someone would choose one option instead of the other?

@mothunderz 4 ай бұрын

Sure! If you have a Wifi network at home and you want to add an ESP to that, then you take the router connection. The advantage here is that if your phone or computer is connected to that same Wifi network, then you can directly access the ESP. The disadvantage is that it only works when you have reception from the router. If you use the ESP in environments where for instance no router wifi is available or you want to setup a dedicated system outside of home wifi, then the access point implementation is to be used.

@PyubX 4 ай бұрын

@@mothunderz very nice and concise explanation

@mothunderz 4 ай бұрын

You're welcome :-)

@paridcati3343 2 жыл бұрын

I have a question. Will the fixed ip and ssid and password change after uploading some other code in the esp32?

@mothunderz 2 жыл бұрын

I am not sure what you mean. Do you mean the left configuration (at the start of the video) where the ESP32 is accessed through a router? Typically, the router will assign the same IP address to the ESP32 if you update the code, however, this will depend on the router. The better solution is to log in into the router, find under WiFi-connections the MAC address of the ESP32 and assign a fixed IP address for the ESP32. That way, the ESP32 will always get the same IP address. If your question is directed to the right side: setting up the ESP32 as an access point -> here you define what the IP, SSID and PW should be in the code itself. Therefore, as long as you dont make changes there, this wont change when uploading new code.

@pepedecoatza Жыл бұрын

would be possible to do something like this with a LAN Cable? i mean internet coming from a wall socket, then via LAN adapter to usb and then to the board in order to make a WIFI Access point from an internet cable access. Thanks

@mothunderz Жыл бұрын

I am not aware of a driver for the ESP32 to accept LAN through USB. You would need drivers or code for that to make it work.

@pepedecoatza Жыл бұрын

@@mothunderz the esp32-s3 is usb host (otg) capable. So it should accept the lan connection

@mothunderz Жыл бұрын

I am not familiar with this version of the ESP32. Sounds interesting!

@pepedecoatza Жыл бұрын

@@mothunderz but i think you are right about the LAN adapter drivers. It would be tricky:)

@shahbaztech7064 2 жыл бұрын

I want to make a mobile app which connect to esp32. How I can connect my app to esp32.

@mothunderz 2 жыл бұрын

There are many ways to connect. For a mobile app, the simplest way to create a bi-directional communication channel is Bluetooth. The advantage of Bluetooth is that you dont need to mess around with IP addresses etc. Another relatively simple method is to use the Access Point connection as shown in this video. You will manually have to connect to the WiFi of the ESP32 and can than access the device at a fixed IP address. Finally, you can of course use the router connection solution of the video. In that case make sure you assign a fix IP address in your router so that you know where to find the ESP.