ESP-01 unstable like connection

Projects Programming
1

Hi i have a question when i'm using ESP-01 and programming it with Arduino board. and using softwareSerial as my library and the AT commands. when i get connected to the router and search my ip address in the browser. I have having some issues with it sometimes i connect and sometimes i dont. its a hit or miss but when i ping the ip address of the esp i always have a feedback but when i search in look it up in the browser sometimes i get took to long to response.

2

this highly depends on the code running on the ESP-01.
or if you are using this awful AT-firmware it depends on what commands you are sending and what configuration you have setup.

Without any code and more information it will be difficult to give advice
best regards Stefan

3

Also the ESP-01 is often wired up to 5V systems with insufficient logic voltage level translation, and insufficient 3.3V power.

4

Hi thanks for the response, this is the link where I got the code from

Credits to the owner for helping me understand and use the esp-01

is there anyway i can fix the connection from this? i can new to arduino and i have only few knowledge about it.

5

isn't it esp-01 run in in 3.3v? and if i run it with 5v would the connection be better? if i add more voltage power?

6

Yes all ESPs run on 3.3V.
More voltage-"power" is an incorrect term.

Power is voltage multiplied with current.

P = U x I
Power = voltage x current
This means your power-supply must match the specified voltage of the device
and the power-supply must be able to deliver enough current.

the EPSs are small but current-demanding up to 300 mA in small spikes
though if the power-supply can not feed in this amount of current the ESP does a reset.
as this are short current-spikes a capacitor of minimum capacity of 1000µF will help

as you can see from this explanation: you have to learn more about electronics

best regards Stefan

7

I see so my problem might be coming from the correct power supply the ESP is receiving rather than the program i am flashing it?

8

another thing is i am connected to the arduino board which have a 3.3V power supply is that insufficient due to the current? i need to learn more about this too.

9

Why so many questions when you could just show us what you have? It's what the forum introduction that you were asked to read, suggested that you do.

10

I second that:

for efficient help the first thing you should "learn" is to give the basic informations:

  • an overview about your project.

  • what exact type of microcontrollers are you using post typenumber and a picture

  • a schematic that - more or less - follows the principles of classic circuit-drawings

The 3.3V-pin of an arduino is insufficient as a power-supply for an ESP

Those tiny ESP01 are wifi-capaple but just cheap and a pain to use
You should use a Wemos D1 mini for €3

or better an ESP32

With such a device in most cases the arduino can be eliminated completly

If you want to learn basics about electronics take a look into that course

best regards Stefan

11

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