Comments on: ESP32: ESP-NOW Web Server Sensor Dashboard (ESP-NOW + Wi-Fi) https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Wed, 28 May 2025 01:19:14 +0000 hourly 1 https://wordpress.org/?v=6.8.2 By: Dan https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1051624 Wed, 28 May 2025 01:19:14 +0000 https://randomnerdtutorials.com/?p=96436#comment-1051624 I messed around with the esp-idf espnow example for a day and a half and couldn’t figure out how to send the data or read it. I got this example going in about an hour. I didn’t have a DHT sensor so I had the senders pump out some sample values, incrementing them in the loop. This works great.

]]>
By: Tomerbt https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1026188 Sat, 12 Apr 2025 15:20:01 +0000 https://randomnerdtutorials.com/?p=96436#comment-1026188 In reply to Sara Santos.

I get the value from the receiver using ESP-NOW. Regarding what you mentioned, it is not accurate because when I am connected to the AP I do get the RSSI between the two boards, but when I disconnect I get different values ​​and I can’t figure out the problem. I have attached a link to the forum where I posted the problem, the codes appear there, maybe it can help, I am really desperate.

https://esp32.com/viewtopic.php?t=45224

]]>
By: Tomerbt https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1026168 Sat, 12 Apr 2025 14:12:53 +0000 https://randomnerdtutorials.com/?p=96436#comment-1026168 I get the value from the receiver using ESP-NOW. Regarding what you mentioned, it is not accurate because when I am connected to the AP I do get the RSSI between the two boards, but when I disconnect I get different values ​​and I can’t figure out the problem. I have attached a link to the forum where I posted the problem, the codes appear there, maybe it can help, I am really desperate.

https://esp32.com/viewtopic.php?t=45224

]]>
By: Sara Santos https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1026129 Sat, 12 Apr 2025 10:33:07 +0000 https://randomnerdtutorials.com/?p=96436#comment-1026129 In reply to Tomerbt.

Hi.
How are you getting the RSSI?
I think you’re talking about two completely different RSSI values.
When the board is connected to Wi-Fi, it gets the RSSI between the board and the router.
When in ESP-NOW, you’re getting the RSSI between the board?
Regards,
Sara

]]>
By: Tomerbt https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1025848 Fri, 11 Apr 2025 13:26:47 +0000 https://randomnerdtutorials.com/?p=96436#comment-1025848 I have a problem that I would like help with.

I have been stuck on this for over a week and I can’t seem to solve it. I have two ESP32 components, one a transmitter and the other a receiver. Each is connected to a separate breadboard.

The reciver ESP32 is placed on a breadboard along with additional components, including a buzzer, an LED, and a servo motor, and the transmitter ESP32 with buttons and LED. When the RSSI value between the receiver and the transmitter reaches a certain threshold (e.g., -50 dBm), the LED, buzzer, and servo motor on the reciver breadboard will be activated.

The system status will be controlled using physical buttons located on the transmitter’s breadboard and using the app, In addition, the RSSI value will appear in the app and in the serial monitor.

My problem:
I want the default behavior to be ESP-NOW mode when the ESP32 is not connected to a hotspot. Once the ESP32 connects to a hotspot, it should switch to using WIFI for RSSI calculations. When the device disconnects from the hotspot, it should revert back to
ESP-NOW mode for RSSI calculations.

Currently what is happening is that I am able to control the system using the buttons when I am disconnected from WIFI and I am able to control the system using the app when I am connected to WIFI. However, for RSSI the situation is different. When I am connected to the app I get correct RSSI values ​​but when I disconnect from WIFI I get completely incorrect RSSI values. I would really appreciate help.

]]>
By: Daniel https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1025327 Wed, 09 Apr 2025 19:15:36 +0000 https://randomnerdtutorials.com/?p=96436#comment-1025327 hello Sara & Rui
a couple of questions, please:
why asincronous server? why not WebServer.h?
what do you need AP + STA mode on receiver for? doesn’t espnow work in STA mode only?
do both implementations make both protocols, espnow & wifi, work together without interfeering each other?
thanks in advance, greetings from Argentina

]]>
By: terry https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1020069 Thu, 27 Mar 2025 02:26:34 +0000 https://randomnerdtutorials.com/?p=96436#comment-1020069 In reply to Larry Ehnert.

Random nerd dropped the ball on this one. Library had changed causing breaking changes. I did get the local access port working. Instead of setting up as a client to another network, set up as a local access point. I wrote my code for someone else, and it is on their computer. This was way back in 2022

]]>
By: terry https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1020065 Thu, 27 Mar 2025 02:21:52 +0000 https://randomnerdtutorials.com/?p=96436#comment-1020065 In reply to Michail Ch..

The problem is whatever you changed from original. Go back to original, then add one change at a time. No one can debug your code for you when we cant see it.

]]>
By: Larry Ehnert https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1019856 Wed, 26 Mar 2025 01:57:52 +0000 https://randomnerdtutorials.com/?p=96436#comment-1019856 In reply to Terry.

Terry:

Did you ever get this to work as a softAP. I am very interested in this arrangement as well to display my timing information as a webpage without having to connect to a router.

]]>
By: Jean-Marc https://randomnerdtutorials.com/esp32-esp-now-wi-fi-web-server/#comment-1018768 Sat, 22 Mar 2025 00:55:36 +0000 https://randomnerdtutorials.com/?p=96436#comment-1018768 Hi,
I want to thank you for all your much valuable projects that help me a lot in understanding how to do what I want to do. Regarding this project, I spent much time to understand why the senders were sending data successfully while the receiver didn’t catch anything. Both senders displayed “Delivery fail”. At last, I noticed that the receiver started Wifi on channel 4 and the senders detected channel 11, which was wrong obviously. So I set the channel to 4 in both senders code, and it works now.
Anyway, this is another great project. Thank you!

]]>