Questions tagged [wifi]
Wi-Fi is a trademark of the Wi-Fi Alliance. A Wi-Fi enabled device such as a personal computer, video game console, smartphone, or digital audio player can connect to the Internet when within range of a wireless network connected to the Internet.
664
questions
1
vote
1
answer
82
views
Connect to wifi works only without password (Problem around WPA security)
I have an ESP32 Joy-it - SBC NodeMCU-ESP32 that should be use with board "ESP32 Dev Module". IDE says : Chip is ESP32-D0WDQ6 (revision v1.0).
Website product: https://joy-it.net/en/products/...
- 133
0
votes
0
answers
53
views
ESP32 Static IP issue in AP mode | softAP
I want to create a webServer with esp32 as AP. Now the issue is that the ESP32 provides a
ESSID not the IP address.
Here's my code
#include <ESPAsyncWebServer.h>
#include <SPIFFSEditor.h>
...
1
vote
1
answer
55
views
How can I host a WiFi network from an Arduino getting a connection from a SIM card?
My friend and I are doing a project and we're stuck on a problem. We tried looking stuff up but it looks like no one documented something similar before.
Basically, what we want to do is have one ...
- 21
0
votes
0
answers
45
views
Respond to all WiFi probe requests with ESP8266?
I'm wondering if there's a way to program an ESP8266 such that it responds to all WiFi beacon probe requests. For example, if a device sends a probe request for a WiFi network name, e.g. "...
- 101
2
votes
1
answer
284
views
Arduino MKR wifi 1010 ssl certificate protection
I'm using Arduino IDE v2.1.1 and Arduino MKR wifi 1010. Everything works fine and at this moment I have a need to protect the wifi connection with ssl certificate. I have generated the ssl certificate ...
0
votes
1
answer
2k
views
RX and TX pins on esp32
hello guys i'm new to this field i really need your help i want to wire a GSM module (SIM808) to a ESP32 board using the TX and RX pins so the pins are labeled RX and TX no pin number like the others ...
- 51
1
vote
0
answers
32
views
DEVKIT V1 DOIT 30 pinout board could not read analog value when using wifi library [duplicate]
I am using DEVKIT V1 DOIT board and 30 pinout board.
When I upload this code for checking analog value from serial monitor:
// Define the analog input pin for the IR sensor
const int analogPin = ...
- 127
4
votes
0
answers
245
views
Internet in ESP32 is not working with IPv6
I am using ESP-WROOM-32D in STA mode with Arduino IDE(2.0.5) ESP32 board(2.0.9).
I am trying to do http post request with ESP32. Router that provides internet supports only IPv6.
Here I am getting ...
- 141
2
votes
2
answers
295
views
Does ESP32 can support WIFIDirect
I would like to establish a simple P2P connection between an ESP32 and an Android device without the use of an access point. I should be able to send and receive data from the ESP32 through the ...
- 49
2
votes
0
answers
28
views
ESP32 WiFi server.send(); is it exclusive to ESP328266 modules, Arduino?
Is the function server.send(); exclusive to ESP8266 modules, Arduino? Where can I find documentation regarding the application of this function with an ESP32 module with WiFi?
- 21
3
votes
2
answers
153
views
ESP8266 Wifi connection problem
I have a Feather Huzzah, aka ESP8266, that I am trying to connect to the Wifi.
One major thing is, that my landlord decided to use the worst Wifi SSID and PW.
The SSID contains an ä and a whitespace, ...
- 31
1
vote
1
answer
211
views
stream a "big" array of measures to a server through wifi
I'm measuring accelerations at "high frequency" (4kHz) from an accelerometer (ADXL355/ADXL357) to an esp32. It's crucial that no sample is lost while performing a measure which last say 2 ...
1
vote
0
answers
101
views
try to send AT commands from Arduino nano to ESP01
I encountered an issue when I try to send AT commands from Arduino nano to ESP01 I tried to find any tutorial for more helps, but I find nothing. please someone can help me.
I tried the tutorial from ...
3
votes
1
answer
236
views
Mobile hotspot with wemos d1 mini
I recently got a wemos d1 mini and now am trying to connect it to my IPhone 13's hotspot, however it doesn't connect, I tried to run the wifiscan example - and it doesn't even detect it there.
I tried ...
1
vote
0
answers
49
views
ESP-07s only connects to my wifi very occasionally
I've got an ESP-07s and I used an example code from the internet. When I power it and the program starts, it should just connect to my Wifi network. It has a simple webpage that should be locally ...
- 113
1
vote
0
answers
110
views
ESP8266 + NodeMCU Motor Shield spinning motor only in one direction
I hooked my ESP8266 Wi-Fi module to an ESP-12E Motor Shield and connected it to an RC car. It works fine when connected to my laptop (Goes forward, backward, left, and right. Though the car doesn't ...
- 21
2
votes
0
answers
69
views
Static IP configuration failed in NODEMCU
I'm trying to connect NODEMCU to my home network and set static IP address, but the static IP didn't set properly this is the code:
#include <ESP8266WiFi.h>
void setup() {
// put your setup ...
- 21
0
votes
1
answer
171
views
Issues getting WPS working on ESP32 [closed]
I am trying to implement WPS on ESP32. A WT32-SC01 Plus to be exact.
It seems to working so far that I'll get the WPS connection but then it takes around 5 minutes [!!!] to get IP address from the ...
- 99
0
votes
0
answers
102
views
Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500 Firmware updater
I have a Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500 that indicates the firmware installed is too old for the Wifi101 library (Version 0.16.1). I have been trying to do a firmware update but ...
- 233
2
votes
3
answers
2k
views
WiFiClient.cpp:517 flush(): fail on fd 48, errno: 11, "No more processes" what it mean?
Hello i wrote this sketch that upload a temperature reading of a DHT22 sensor to a phpMyAdmin server in localHost, the sketch work fine, the data been upload every 5 min to the server than ESP go t ...
- 151
1
vote
0
answers
79
views
How to connect to AWS iot?
I am trying to connect esp8266-12f to aws iot core following this tutorial. Below is my code.
main.cpp
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include "config.h"
#include &...
- 11
0
votes
0
answers
245
views
ESP32 Async Web Server hanging / queue
I was hoping someone might be able to help me with a project I'm working on. The general set-up is as follows:
I have an ESP32 hosting a WiFi server and publishing data from a bunch of sensors.
// ...
0
votes
0
answers
175
views
Forget WiFi ESP32
How can you make ESP32 forget all the Wi-Fi networks it was connected to? Or at least forget the one to which the board is currently connected?
1
vote
1
answer
840
views
Slow WiFi reconnection after deep sleep (6 to 10 seconds)
With my ESP8266, I need to make a simple GET request to a server, and then go to deep sleep (the goal is 1 year battery powered)... until a signal comes on RST and then it starts again.
The following ...
- 398
-1
votes
1
answer
133
views
LEDs controlled by PHONE on ESP32
I am having doubts with a project I'm making.
My project involves a sets of LEDs stripes, among which some are controlled from a smartphone, and some automated. The LED strips are connected to an ...
- 65
1
vote
0
answers
368
views
ESP32-S3 - HttpClient only returns 200 status code no JSON payload data
I have a ESP-S3 board and am trying to get JSON data from our server. I am using the following code (see below) as a basis for mine.
This code works. If I change
http://jsonplaceholder.typicode.com/...
- 11
1
vote
0
answers
628
views
ESP32 WIFI error when trying to initialize WIFI after stopping and deinit WIFI driver
I have a firebeetle ESP32 board and I use VScode with platformIO. My platform is espressif32 v5.0.0 and the framework is arduino.
I am currently implementing a WIFI connection as follows:
bool ...
- 21
3
votes
0
answers
1k
views
How to correctly synchronize time with NTP server?
I want to synchronize time with NTP server once in some time. I am using DOIT ESP32 DEVKIT V1, I tried with getLocalTime() function but it returned true even without wifi, but as I know without wifi ...
- 39
1
vote
0
answers
1k
views
ESP32 wifi server with multiple clients
I have a program where I configure my ESP32 as a server and it sent randomly generated data, the problem is that I can only connect 1 client at a time, what I want is that multiple clients can connect ...
- 11
0
votes
0
answers
131
views
Communication between two ESP32s using WiFi
I have two ESP32s. One is acting as webserver and the other is acting as a client that will send a GET request to the server ESP32. Both of the ESP32s are connected to the same WiFi AP.
For sending ...
- 136
-1
votes
2
answers
210
views
Read SD card on ATMEGA328 from ESP826
I have a ATMEGA328 with ESP826 (like this http://arduinolearning.com/hardware/atmega328-esp8266-arduino-board.php) and can successfully send information from the ATMEGA328 to the ESP826 via serial.
I ...
- 121
3
votes
1
answer
625
views
Why does Arduino Nano 33 IoT always choose the weakest WiFi BSSID?
I have an Arduino Nano 33 IoT configured to connect to my WiFi network with a pretty straightforward code:
#include <WiFiNINA.h>
int status = WL_IDLE_STATUS;
status = WiFi.status();
while (...
- 133
-1
votes
1
answer
1k
views
POST request (HTTPClient) with ESP8266 not working on localhost (http code = -1)
I've been looking around for a solution, but couldn't manage to find one. I'm looking to send a post request from an ESP8266 on a local API.
Here is my code :
#include <ESP8266WiFi.h>
#include &...
- 9
4
votes
1
answer
1k
views
ESP32 Wifi not working when powered by battery
I'm quite new to ESP32 development. I've been using this devkit for a few small projects and everything was going smoothly until I decided to run it on battery. In particular, the ESP32 devkit I'm ...
- 63
1
vote
0
answers
336
views
WeMos D1 losing WiFi connection
I have a WeMos D1 connected to an air quality sensor and publishing the value on a self-hosted website.
Initially everything works fine (although router UI does not display WeMos). After an hour or ...
- 11
2
votes
1
answer
1k
views
ESP32 ADC <-> WIFI Issue
I'm using the ESP32's ADC1 (not ADC2, which conflicts with Wi-Fi functionality) to capture some analog data received @IO36 (an ADC1 port). As soon as I uncomment the WiFi.mode(WIFI_AP_STA) line (even ...
- 181
1
vote
1
answer
724
views
esp8266 - server.handleClient() fails to call assigned function
I'm trying to get one esp to send integers to a second as a part of a simple remote control, but after multiple days I can't get it to work. The transmitter seems like it's connecting and sending ...
- 13
2
votes
1
answer
476
views
failed log in attempts on softAP
I would like to setup an access point using the esp32 that logs any/failed access attempts
i have looked through some source files, and came across esp_event.h, which seems to allow registering an ...
2
votes
0
answers
533
views
HTTPClient works with localhost but not server
I started to work with HTTPClient and the WiFly library to connect to an SSID and then send POST data to a server. When I was sending the data to my localhost, it was working on localhost, but when ...
- 21
1
vote
1
answer
106
views
Problems connecting to WiFi101 access point
I currently have two Arduino Zero boards (using the SAMD21 microcontroller), each with an ATWINC1500 wifi module attached. I have established one of these units as a wifi access point with a server ...
- 129
-1
votes
2
answers
3k
views
how to change a const char*
At the top of my arduino sketch, I have the following :
// softAp
const char *softApSsid = "abcdefg";
const char *softApPassword = "123456";
Those are the DEFAULT ssid and ...
- 167
1
vote
1
answer
2k
views
Is possible to use ESP-NOW in LR mode (long range) simultaneously with WIFI STA (to connect to internet over wifi)
I am building esp-now gateway with mqtt but need long distance (200 meters).
I try to use LR mode but when I enable de LR mode I lost connection with WiFi.
Is licit to make use of LR and STA at the ...
3
votes
1
answer
659
views
Arduino ESP8266WebServer hangs after a while but responds pings
I have an ESP8266 module that I use to be able to power on three computers if they are off. The ESP8266WebServer has what I needed to have a POST method rather than a simpler GET one since I am ...
- 31
1
vote
0
answers
255
views
WiFi HaLow library
Does anyone know if some Arduino based library is on the way to support new low power WiFi HaLow modules. If there is, I would like to know for which module?
For reference I'm sharing link here
- 121
2
votes
0
answers
317
views
How to fix this problem of invalid conversion from 'const char*' to 'char' [-fpermissive] [closed]
Im working with node mcu ESP 8266 and trying to make it a webserver but keep encountering this problem.
#include<ESP8266WiFi.h>
WiFiClient client;
WiFiServer server(80);
void ...
1
vote
1
answer
697
views
ESP32 TCP disconnect takes very long to be recognized
I'm using the following class to create a stream from a WiFi (server) connection. The client (a PC application) connects to the ESP32 and then issues commands over this connection. This works fine. ...
- 1,261
1
vote
1
answer
2k
views
ESP32 AP Automatic Web Page
I've often encountered WiFi networks that require you to sign in through a web page that automatically opens after connecting to the access point, such as hotels. I'd like to implement something ...
- 51
1
vote
2
answers
158
views
How Much mA dropped in ESP8266-01 Work in LiPo Battery if the WIFI function is continuously on
I working on the system where ESP8266-01 should continuously on because I want to get the Wi-Fi function on. In that case ,I can't use the Sleep mode which is given in the Esp8266-01 . So, My Question ...
1
vote
1
answer
168
views
WiFi.h library, Issues with client.print()
I have an esp32 development board that I am trying to use to get Bitcoin price data using the Coinbase api.
On the Coinbase developers website, they give this example Curl command to get Bitcoin price ...
- 13
1
vote
1
answer
414
views
How do I check if my board is connected to the internet?
Let me get this straight, I'm trying to see my ESP32 is connected to the internet or not, not Wi-Fi, as at times the board is able to connect to Wi-Fi, but not able to contact any servers, due to ...
- 472