158 questions
0
votes
2
answers
63
views
How to detect the end of an ESP-01 (ESP8266 AT command) UART response when receiving with interrupts?
I’m working with an ESP-01 (ESP8266, AT firmware) connected to an STM32 “Bluepill”.
I receive data from the ESP using UART interrupt (HAL_UART_Receive_IT) and I want to detect when a full response ...
0
votes
0
answers
37
views
Firebase Connectivity in ESP8266 NodeMCU
I am working on an ESP8266-based IoT project (waste segregation system) and trying to send data to Firebase Realtime Database. I am using the latest Firebase ESP8266 Client library (FirebaseESP8266.h) ...
0
votes
0
answers
39
views
Eclipse not able to resolve datatypes in ESP8266_RTOS_SDK
I am working with ESP8266_RTOS_SDK, I have imported an old project from my backup which used to run fine earlier when I was using an old system. I have installed the complete tool chain (make / xtensa/...
- 39
0
votes
0
answers
50
views
ESP32 - how to switch from AP to STA mode, if configured WiFi becomes available
While serving a web interface on ESP32 controllers, I find it useful to fall back providing an on-device AP, if the configured WiFi AP is not available after some timeout.
This way the device can ...
- 11.4k
0
votes
1
answer
49
views
iOS can not connect to ESP8266WiFi softAP
I am using an ESP8266WiFiHW-628 V0.0.1 to create an access point (code below).
While I am able to connect to the AP using a windows machine when I am trying to connect using iOS devices I get "...
- 11
0
votes
1
answer
86
views
Why does AT command don't work with ESP8266-01?
i have a problem with my new ESP01. I tried using AT commands with the baud rate of 115200, but don't receive OK answer. I also tried to flash it and didn't quite succeed as it's just flashing that ...
- 15
0
votes
0
answers
65
views
NodeMCU ESP8266 Alexa interface works, but GPIO state change does not and always "Soft WDT Reset" following Alexa command
The purpose of the code listed below is to enable Alexa to control a relay, which then controls a medical chair slave remote control. The code is significantly based on this example: https://...
- 1
0
votes
0
answers
87
views
updating variable on local hosted webpage without reloading
I have had this problem with an esp8266 nodemcu where I cannot seem to find a way to update a variable on a webpage without having to sit there and spam F5, the project is for a weather vane to show ...
- 11
1
vote
1
answer
450
views
Connect websocket on esp8266 to local server using IP
I started working a small "smart home" project to learn about embedded development and Rust. I have
an ESP8266 with a DHT to measure humidity and temperature, written in C++
a server ...
- 305
0
votes
1
answer
75
views
How to control servo with Raspberry Pi by internet connection?
I want to send a command from my smart phone to move a servo at my house when I am at the work. Is it possible to do that with the Raspberry Pi and a wifi module? I am not an expert in this field, so ...
- 1
0
votes
1
answer
52
views
no compilation error and i am able to successfully upload the code to node mcu but no output and led not blinking of r307
#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
#include <ESP8266HTTPClient.h>
#define RX_PIN D5 // Connect this pin to RX pin of the fingerprint sensor
#...
0
votes
0
answers
76
views
esp-01 wifi module STM32F4 discovery firebase
I want to send data to Firebase Realtime Database using stm32f4 and esp-01 wifi module.
this is how I tried to connect and send to firebase Realtime Database
connect firebase and send message funciton
...
- 11
0
votes
1
answer
86
views
ESP8266 StreamHttpClient example broken - prints "read timeout" error
Problem:
The ESP8266 example sketch StreamHttpClient, seems to be broken for 3.1.x version of the Arduino SDK. The URL is broken because it returns HTTP code 301. However, even if you fix the URL, the ...
- 353
0
votes
0
answers
86
views
ESP8266 AT+CWLAP does not return available networks
I am new to ESP8266. I try to connect ESP8266 to my network. On serial monitor I send AT and AT+CWMODE=1 command and I get "OK". Then I send AT+CWLAP command but it returns just OK. One of ...
- 1
1
vote
0
answers
486
views
WebSocket connection with a ESP-01S (ESP8266) and arduino
I'm new to working with WebSockets and arduino. I'm trying to connect to a WebSocket server that I run on a separate computer from my ESP-01s.
So far I'm able to connect to my wifi and get a local IP. ...
0
votes
0
answers
41
views
First time using ESP8266, can't get it to connect to wifi
I'm trying to connect a Sensirion sps30 with a ESP8266 on wifi.
I used Arduino to program the ESP8266, but this is the first time I'm doing this.
I found a filled out sketch and I only had to put in ...
0
votes
0
answers
43
views
Can the ESP8266-01 WiFi Module be a substitute for the NodeMCU for transferring Temperature and Humidity data to google sheets?
I am currently working on a project that transfers data and saves it directly to google sheets, however most of the other projects utilizes boards like NodeMCU and ESP32. Can the ESP8266-01 WiFi ...
0
votes
1
answer
205
views
ESP8266 (Arduino) WiFi intermittent connection when between mesh access points
Background
I have an Arduino sketch running on an ESP8266 clone, using the vanilla ESP8266WiFi.h library.
This works as expected on the bench, when it is in clear sight of just one access point (...
- 1,145
0
votes
1
answer
40
views
Sending message from one ESP8266 to another one via network created by one of them
I got a code of the first one:
import network
import socket
from machine import Pin
import time
# LED pins
led_pin = Pin(0, Pin.OUT)
led_pin.on()
led_pin2 = Pin(2, Pin.OUT)
led_pin2.off()
time....
0
votes
2
answers
373
views
ESP8266 chips using different encryption for softAP
I've got this curious case which I'm trying to make sense of. I use ESP8266 boards in a particular project of mine. There are smaller boards and larger boards, with other modules on them, purchased ...
0
votes
0
answers
58
views
WIFI Module can't get the data from the server
I am trying to connect the esp 8266 wifi module with the online server when I press a button on the site I expect to see the data in the file.txt that I upload to the site but I receive something like ...
0
votes
0
answers
261
views
How to get the requested url in NAPT range extender for NodeMCU ESP8266 with Arduino framework?
I have a NodeMCU ESP8266 WiFi development board.
I was using the RangeExtender-NAPT example sketch in Arduino IDE for ESP8266WiFi library.
You can find the code here too.
It works great. I was able to ...
0
votes
1
answer
665
views
WiFiMulti.run: While loop under the void setup() results in extra 7sec delay
I'm facing an unexpected behaviour while writing sketch for NodeMCU 1.0 (ESP-12E).
I'm trying to show some counter while connecting to the WiFi as a part of my void setup(). The idea is to show ...
- 1,978
-2
votes
1
answer
943
views
Tow i2c devices with one esp8266
I am new to this domain, for a project I have to build a health monitoring system to monitor temperature, heartrate and SPO2 .
I am using MAX30102 Pulse Oximeter sensor, and MCP908 temperature sensor ,...
-1
votes
1
answer
707
views
Live audio transmission between mobile and Esp8266 NodeMcu
I am trying to transmit my voice live from my mobile phone to esp8266. I am using web browser as client interface and Wifi as connection.
I heard that this can be done with websocket ,
what I need is ...
- 51
0
votes
0
answers
208
views
Esp32-wroom-32E stop connecting to WiFi
I am working on a project i.e. Energy Meter in which Esp32_wroom-32E is being used by me. When I install the device in clients homes. they work fine for a week or so and then Wifi connection issues ...
0
votes
0
answers
262
views
ESP8266 AT MQTT SSL Certificates not working
I'm using the ESP8266 (WROOM-02D) for MQTT over WIFI. I'm using AT commands for MQTT.
I'm currently using ESP8266-IDF-AT_V2.2.1.0 firmware on the WROOM-02D.
My broker has been configured to use both ...
- 373
0
votes
0
answers
368
views
Arduino ESP8266 download a large file in chunks?
I am testing downloading a large file (2.7 KB) from a URL my github repository. I wanted to test downloading the file in chunks of 100 bytes and writing it to an SPIFFS file. I basically want to ...
- 801
0
votes
1
answer
309
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 ...
- 11
0
votes
1
answer
456
views
Esp32 OTA update using React-native app is not working
I'm developing an react native based OTA app updater.
The file is been searched by the fs and then uploaded to esp32 via http where esp32 is in AP mode to receive the file over webserver. During the ...
1
vote
0
answers
144
views
I try to use ESP8266-12F UART pins RX(D9) and TX(D10), TX works fine but RX interrupt doesn't work
volatile boolean interrupt_occurred = false;
#define LED_pin D1
void ICACHE_RAM_ATTR handleInterrupt() {
digitalWrite(LED_pin, HIGH); // Interrupt occurred, so turn On LED
...
- 11
0
votes
1
answer
222
views
Can i work with ESP32- Dev kit and ESP32-WebCam in a Sender and receiver interface?
I'm new in working with embedded programming and I've got a question that is - "I would like to make a project where if I press a button it should send a 15 seconds video to the contact number ...
1
vote
2
answers
4k
views
ESP8266 watchdog reset when using WiFi
I'm trying to use WiFi on a ESP8266EX based board (XTVTX WEMOS D1 Mini Pro).
The sketch is really simple.
#include <ESP8266WiFi.h>
void setup() {
Serial.begin(9600);
WiFi.begin("<...
- 1,775
0
votes
0
answers
4k
views
A fatal esptool.py error occurred: Failed to connect to ESP8266: Timed out waiting for packet header
I am trying to use the example sketch "Helloserver" to make a server using a generic ESP8266 and an arduino uno. I have configured and connected every physical component according the sketch´...
1
vote
2
answers
833
views
http.GET() sends false (-1) in esp8266 (arduino)
I am trying to fetch some details from an API endpoint (https://bitcoin-ethereum-price-test.vercel.app/btc). But everytime it is returning false (-1). When I GET the endpoint on my browser it is just ...
- 211
0
votes
1
answer
624
views
Upload data folder file to spiff of esp8266
I'm trying to upload an Arduino file and its associated data folder to an esp8266 using Arduino-cli, but I'm having trouble uploading the contents of the data folder to the esp8266 SPIFF memory.
I ...
1
vote
0
answers
169
views
Px matrix library for RGB led matrix 32x16 for total 30 modules for larger display
I am unable to increase the brightness using display.brightness(255)
anyone help me regarding this display.begin(8 or 4 or etc...) if i want to keep 30 modules of 32x16 .Am not understanding about ...
0
votes
2
answers
161
views
C++ Add real world time to timestamp on charts
I'm making a little ESP8266 project for myself, in which I want to display the Temperature and Humidity of an DHT11 sensor on a website. The code I have now works perfectly, but the timestamps at the ...
0
votes
1
answer
343
views
ESP8266 NodeMCU WiFiClient client errors
I want to send data from DHT11 to URL using an ESP8266 NodeMCU. I use the board "NodeMCU 1.0 (ESP-12E Module)".
My code is as follows:
#include <dht.h>
#include <ESP8266WiFi.h>
...
- 114
-1
votes
1
answer
809
views
how to change wifi password and ssid in blynk edgent
i recently changed my wifi ssid and password and i'm wondering how could i change the password i have already tried clearing the board with a flasher reuploading the code and nothing worked for it ...
- 89
0
votes
0
answers
696
views
Songhe ATMega2560 + Wifi R3 ESP8266 is killing me! [WiFiEsp] >>> Cannot initialize ESP module
I am working with the Songhe Mega2560 + WiFi R3 Mega2560 + ESP8266 4MB Memory integrated circuit for a project involving connecting to a WiFi signal and reading the RSSI value.
Below is a basic sketch ...
- 1
0
votes
0
answers
63
views
Display data on oled 1.3 inch screen after 5 seconds but update data on google sheet after every 15 minutes
I am working with DHT22 sensor and NodeMCU to get temperature and humidity values. I want to store values on google sheet and also display values on 1.3 inch oled display. I have used millis() to do ...
1
vote
6
answers
8k
views
My ESP32 is scanning all the nearby WiFi Networks but it does not connect to my WiFi Router using Arduino IDE (Return Value of WiFi.status API = 6)
I am trying to connect my ESP32 to my Wifi Router using Arduino IDE but it is not connecting & giving a connection failed or disconnected status. I also confirmed it is scanning all the available ...
- 15
0
votes
1
answer
574
views
Failure to send data from client to server in ESP-01 WiFi
Using the ESP8266WiFi library, I have two ESP-01's/ESP8266's connected over WiFi. It works perfectly when the client sends a request (all non HTML!) to the server (using port 5000 - to prevent any ...
- 39
-1
votes
1
answer
2k
views
How do I PUT an HTML page READY IN THIS CODE?
I wanted to put an already made website inside this script so I don't have to write the whole website again
ESP32 device model
#include <WiFi.h>
#include <DNSServer.h>
#include <...
0
votes
1
answer
1k
views
Getting gray question marks on serial monitor
I am trying to use an arduino uno to check to see if an esp8266-015 wifi module is working using AT commands.
Connections
ESP8266 Arduino
Rx-Rx
Tx-Tx
GND-GND
EN-3.3v
VDD-3.3
I selected arduino uno in ...
0
votes
0
answers
82
views
Why is this client-server connection between two esp8266s using the esp8266 wifi library not working
The code is supposed to create a soft ap, and whenever the button is pushed, it should send a '1' to the client, causing the pin to go HIGH, and whenever it is not pushed, set the pin to LOW. This ...
0
votes
0
answers
47
views
how do i fix it (arduino)
i want to use AT command
but i cant
i use esp8266 wifi shield model
and i connected jumper line
enter image description here
but
#include <SoftwareSerial.h>
SoftwareSerial mySerial(0,1); //RX, ...
- 11
0
votes
1
answer
124
views
Trying to carry out HTTP request to device connected to ESP8266 in access point configuration
Edit:
I apologize for the lack of information and quality of the previous version of this question, I will try to rephrase and give more information about my issue.
I am currently running a web server ...
0
votes
0
answers
114
views
ESP8266 not connecting to another ESP8266
I try to connect a few ESP8266 (STA-Mode) to one ESP8266 (AP Mode)
All of the ESP Stations connect well, but one will not connect.
The one can connect to other networks.
Debug Serial off well ...
- 1