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Questions tagged [esp8266wifi]

151 questions
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How can I get an AT response from the ESP 12S via the Arduino Mega?

I am currently working on an AT communication project for Arduino Mega and ESP8266 ESP 12S. We are having some technical issues and would like to ask a question. First of all, the parts list I currently have is: Arduino Mega FTDI converter ESP 12S…
Wangon Kwak
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Code error in smart irrigation system, using dht11 sensor

I have wrtitten a code for automatically watering plant using esp8266, dht11, moisture sensor but my code has some error, i dont know how to fix it #include #include String apiKey = "X5AQ3EGIKMBYW31H"; // Enter your…
Anshuman Bharadwaj
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Send a collection of data from .json file when a internet connection reconnects from esp8266 (Nodemcu)

I have an esp8266 in a car recolecting a bunch of data, and I would like to send it when I come to my wifi connection at my home, actually, I have much access points between my daily route to my job and school, with different credentials. In order…
aHardReset
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ESP32 Flashing upload starts and fails with timeout

I have an ESP32-WROOM, as seen here. In the Arduino IDE, I compile and verify my sketch, and then attempt an upload. I get the following error: esptool.py v2.1 Connecting........___ Chip is ESP32D0WDQ6 (revision (unknown 0xa)) Uploading…
RenegadeAndy
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ESP8266 Access Point Mode - Intermittent when connecting

I'm using an ESP8266 in access point mode to send it some data (wifi credentials) from a mobile app via HTTP. The access point init code is very simple: IPAddress apIP(10, 10, 10, 1); IPAddress subnet(255,255,255,0); …
Peza
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NodeMCU JSON POST data issue

I am using the below code for sending POST json requests. I am receiving the request, but the body parameter is coming as null. ("body": null) // Example of the different modes of the X.509 validation options // in the WiFiClientBearSSL object // //…
Biranchi
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ESP8266 with Serial AT commands

I am trying to communicate with my ESP8266-07 through Arduino Nano Serial. I am using AT commands to reset, connect wifi, connect TCP server and so on. I have got one functional script, so i know that ESP8266 is wired correctly. I am using 3.3V to…
Filip Geib
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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 how to write the code in the arduino
Mohammad
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How can I connect to the local wifi network opened via ESP32 via C# and transfer the data from the sensors?

I want to connect to the wifi network opened from esp32 via c# program and view the data sent from esp32. I was doing this project before using arduino via serialport, but I need to do it with local wifi network and I couldn't find the necessary…
furkankeles
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ESP8266 HTTPS certificate connection fails

I've tried to use my ESP8266 to connect to a website (ecocathlon.fr) with HTTPS, and it worked for some time, but recently the server has been reset and now the ESP8266 won't connect to the server. There is a new SSL certificate so I've changed the…
Matk3z
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ESP32 board can't compile the ESP8266wifi.h include file

I use ESP32 board. I want to get the content from google sheet. my reference code is as below The error was ESP8266WiFi.h: No such file or directory. Does anyone give me some suggestion? Thanks `#include #include "HTTPSRedirect.h" …
user1430445
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How to get argument value from ESP8266wifi library?

I am using ESP8266WiFi library for a NodeMCU project where the user has to fill a form and submit the data through GET. Now I want to read the Arguments such as 192.168.1.1/submit?Name=john All I need is to get the arguments after 192.168.1.1? what…
awais ahmed
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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 , with esp8266 . The problem is that each sensor…
Lili Lili
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Arduino IDE: esptool.FatalError: Invalid head of packet

I'm trying to connect my ESP8266 Module and I get this error when I do so. This is the wiring that I have set up (ignore the 3 crossed out wires at the bottom). Do you know how I can address this? Thanks!
anika
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esp8266 client connect failed with cdn proxy

I have set an Arduino code (on an esp8266). The code is only doing the following : Set wifi Connect to a webserver Retrieve the html from this webserver and store it instantiate a server:port handle GET "/" request on local IP address and send back…
Paul Ernond
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