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Questions tagged [esp8266]

An IC that offers Wi-Fi networking compatible with b/g/n standards. It also has integrated TCP/IP protocol stack. Extremely popular along IoT community as a low cost and powerful board.

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Send and Receive with ESP8266 and arduino

Hi i would like to implement a sensor and control system for my home. Basically, i would like to send and receive data to my arduino uno using esp8266. I am able program the esp8266 using at commands ...
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Arduino ESP8266 receive email?

Is there a sketch that supports the receiving of email using the Arduino environment on the ESP8266? I can only find support for sending email. I know it's possible because the NodeMCU environment ...
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ESP8266 as I2C client

I've got an ESP8266 that takes instructions from a web page and sets a series of NeoPixels to flash in different sequences. I noticed that when the Wi-Fi got data and parsed it, my LEDs would "...
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ESP8266 problem as Web server

I asked a previous question about esp8266 that made a lot of things clear for me that esp8266 is very powerful and can be independently used as the webserver now, I have used the following library(...
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Passing class member function as argument

I need to pass a class member function to server.on, unfortunately i get an error. error: no matching function for call to 'ESP8266WebServer::on I have done some searching but could not understand ...
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2k views

NODEMCU vs AT for esp8266

I have recently started working on esp8266 wifi module and arduino uno. I am a little confused. I have created a small Web page with esp8266 AT commands. Now I want use it for receiving data such as ...
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2answers
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How much numerical precision can the ESP8266 achieve?

Background: I am trying to port this solar tracker code by Gabriel Miller to run on the ESP8266. Now I'm not a particularly great coder, but I'd like to give it an honest try. As of recently, the ...
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1answer
2k views

Arduino with ESP8266

I have completed the circuit and code to interface ESP8266 module with Arduino UNO. When i send AT,AT+RST from serial monitor the reply is correct . But when i send AT commands to search WIFI ...
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6answers
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esp8266 not responding to the AT commands

I am integrating Arduino Uno with the WiFi module ESP8266. I have already made the connections between the ESP8266 and the Arduino Uno which are : txd uno -> rxd esp8266 rxd uno -> txd ...
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esp8266 not getting programmed

I am working on an esp8266 and I am connecting it with Arduino Uno. I have programmed the Arduino but when I write AT command on the serial monitor it doesn't show anything.The connections which i ...
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1answer
6k views

ESP8266 wifi module sending data via jQuery

Hey all I have the ESP8266 module and I have already set it up and it's working good. However, when I run this HTML page code here: <html> <head> <title>ESP8266 LED ...
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RESTful API with ESP8266 and arduino mega

Anybody had worked with ESP8266 to post data to RESTful web service? I was trying but it's not posting anything. Tried with a test server : http://www.posttestserver.com/ Serial.println("\nSetting ...
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esp8266 esp-01 crashing, restarting over and over [closed]

I flashed my ESP-01 with the nodemcu firmware 512k version, and everything was working fine. I testing some lua scripting on init.lua and it was working. Then, after writing a bunch of code and ...
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1answer
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ESP8266 and Arduino Interfacing

I have connected Arduino with ESP8266 with Arduino pin 2 connected to ESP's Tx Arduino pin 3 connected to ESP's Rx via Voltage Divider Arduino GND connected to ESP's GND Arduino 3v3 connected to ESP'...
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3answers
618 views

Adjusting variables in code without reprogramming?

I'm a teacher, working on eliminating some difficulties of Arduino in the name of getting to the fun stuff. Namely, I am building a small Arduino powered device that will collect simple data from ...
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1answer
4k views

Simulate a FTDI using an Arduino UNO

I'm looking to directly program an ESP8266 WiFi Module with out using a FTDI (USB-Serial interface) as suggested in this excelent tutorial. The real purpose is to have access to the GPIO ports of the ...
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1answer
547 views

Got Trouble with ESP8266 and Arduino Yun using REST control

Sorry about my English. I'm a new bie in program Arduino and interested in ESP8266. I'm trying to use ESP8266 control Arduino Yun using REST API. Like you know, we using web browser as http://<...
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Sending file from SD card to android using ESP8266

I came across this post https://stackoverflow.com/questions/10327506/android-arduino-bluetooth-data-transfer where the author sends files from the arduino to android platform over bluetooth. I am ...
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2answers
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Capturing images from OV7670 (w/o FIFO) using Arduino Uno?

I want to capture images from my OV7670 (w/o FIFO) and send it to my PC via Wi-Fi (ESP8266) (which I know how to use) using an Arduino Uno. I have read so many blogs and threads on the internet but ...
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560 views

SoftwareSerial Struggles

Just trying to understand and use the SoftwareSerial I want to connect a WiFi Module (ESP8266) If I send an AT command to the module I would like to print a response on my pc screen in the serial ...
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2answers
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Arduino + ESP8266 - poll file from a server?

I really need all the help I can get... It's been a week now and I'm still not able to solve the problem. I have text file on a server. The whole address is www.example.com/test.txt I want to read ...
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0answers
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My Computer Doesn't Realize ESP8266 ESP-05 is Connected or not

I wired ESP-05 to my usb-to-ttl as images below. I connected it to USB #2 port, and my computer seems not knowing this. I also tried to send "AT+RST" through Realterm but, it didn't work neither.
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1answer
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Wiring Lilypad USB + ESP8266 Serial WiFi Module

I am trying to solve the following scenario: Lilypad USB connected to WIFI through ESP8266 Serial WiFi Module. http://arduino.cc/en/pmwiki.php?n=Main/ArduinoBoardLilyPadUSB http://www.seeedstudio....
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4answers
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ESP8266 + Arduino Uno: Can't send AT Commands

I'm trying to get the ESP8266 up and running without a FTDI chip, just my Arduino Uno. But it seems really difficult. What I did: attach the ESPs VCC directly to Arduino Uno 3.3V; RX->TX; TX->RX ...
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1answer
3k views

How to get the signal strength of the network connected with the ESP8266

I am using ESP8266 module with Arduino Uno.I don't know how to get the signal strength of the network with which ESP8266 is connected.Please help..
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1answer
878 views

Arduino and ESP8266 Web server

First things first, if there was an ESP8266 StackExchange, I would post this there. I am setting up a web server that will programmaticly be controlled from an external Python script, and I am ...
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2answers
1k views

Wifi Data Logger without Delay

I am really new to Arduino so please bear with me. I am running an Arduino Uno with several sensors to capture some data related to a fish tank. Here is basically what it does: Capture data (light, ...
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2answers
621 views

Is it possible to use ESP8266 modules interchangeably?

I discovered that there are multiple types & versions of ESP8266 modules. I'm wondering: Build my application around one type (eg ESP-03) and in future swap the module with another (ESP-07), ...