Your ESP8266 was disconneted

Need Help With My Project
1

Periodically (2-3 times per minute) pops up a message “Your ESP8266 was disconneted”.

The program performs a simple operation: sensor transmits readings with DHT22 on cellular phone (Android) once every 3 seconds.

Internet reliable.
I tried to check in cellular, LTE, on the tablet - the same story.

With what it can be connected?

2

How is your power supply to your ESP? Have you tried adding a capacitor across the power supply to the ESP? In my case it worked miracles because the ESP uses lots of power when transmitting (up to 400mA if I’m right) and a small capacitor will handle that better. 100uF or something similar small will do the trick.

1 Like
3
  1. Tried different sources, including the battery.
  2. In the left only the transfer to a single virtual pin meter readings seconds.
  3. Program the second module.
    The result did not change.
    The application periodically reports that the module is disconnected.
    Any other ideas?
4

Basically, wifi is notoriously unreliable. The ESP has a very small antenna and works in the overcrowded, overpopulated 2,4Ghz frequency. If you live in an area (such as myself) with lots of other 2.4Ghz transmitters/receivers it can do a lot of damage to the signal quality because wifi is a half duplex medium, unlike ethernet.

So it could be why your ESP is disconnecting, but your tablet works fine with your accesspoint/router because it probably has a better chip and/or antenna. Have you tried moving the ESP a bit closer to your accesspoint or reconfiguring your accesspoint to the least used channel? You can use a tool like inSSIDer to check for least used channels in your vicinity.

5

The signal is good. Two meters to the router.
This problem only I or others can also be found?

6

No, others have issues with this too, Usually it’s power related. Have you tried the capacitor? In my case that helped a lot. It could also be a faulty module, they are really cheap after all. It may be worth trying another ESP.

7

I tried another module. I put capacitor 1000mF.
The provider gives Internet through the NAT.
Maybe that’s the problem?

8

I had/have the same problem one thing that reduced the disconnections for me was adding a 1-3 ms delay in the main loop maybe that gives the esp more time to work?? no idea really. but now i am getting esp disconnections 1 time in 10 min max.

9

The delay in the main loop does not work, only to lose sensitivity.
But in the process of timer is much better. I did 10 seconds.
Problem with disconneted stopped.