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.
0
votes
2answers
14 views
ESP8266 as WiFi for Arduino
I have a pretty simple project, where some data has to be read from a mySQL server. My idea is to do this with an ESP8266, and then provide that data to the Arduino Mega.
Is this possible or am I ...
1
vote
2answers
30 views
Can I use arduino's 3.3 V output directly to esp8266?
I just bought esp8266 and ftdi usb driver, I want to power the esp8266 with Arduino's 3.3 V output, is that possible?
I saw some tutorial on youtube in that they are suggesting us to use 3.3v ...
0
votes
1answer
23 views
Can Arduino be used as an FDTI Programmer?
I would like to program my ESP 8266 WiFi module. But I don't have an FDTI right now is there any way to use Arduino Uno as FDTI Programmer then use ESP without it.
0
votes
1answer
31 views
How to Capture Data from a Webpage in Arduino and Display it over Serial Monitor of ESP8266?
My Code is as follows->
#include <SoftwareSerial.h>
SoftwareSerial ESP8266(8,9);
String inData;
void setup() {
ESP8266.println("AT");
delay(1000);
ESP8266.println("AT+RST");
}
void loop() ...
0
votes
1answer
46 views
Esp 8266 doesn't reply to AT commands
I am working on esp8266 module with arduino uno board. This is my program.
#include <SoftwareSerial.h>
#define DEBUG true
SoftwareSerial esp8266(2,3); // make RX Arduino line is pin 2, make ...
1
vote
4answers
62 views
Will I be able to control stuff from anywhere in the world if I use a wifi shield like ESP8266?
Currently, I am using a Bluetooth shield, HC-05, which is working perfectly but there are two problems:
Only one person can connect to Bluetooth at a time.
I have to be in a specific place to be ...
1
vote
0answers
36 views
Why does my “ +IPD,<len>: ” AT command executes only once even if placed in void loop()? [closed]
I want to run all AT commands through Arduino Code over the Serial Monitor,and want to fetch data using a Thingspeak Key.
My other AT commands execute well periodically as needed in void loop(), but ...
0
votes
1answer
26 views
mqtt library which support softwareSerial on arduino uno with ESP8266
I am using ESP8266 and Arduino with software serial. my requirement is to use MQTT protocol with it.so am using MQTT library named PUBSUBCLIENT but the problem is PubSub can't support ...
-1
votes
3answers
53 views
ESP8266 sends webpage to client, but html codes appears in browser instead of webpage?
I am using ESP8266 with Arduino MEGA. ESP8266 is powered 3.3v via voltage divider, which is taking 5v from arduino and converting it down to 3.3v with the help of 5K and 10K resistors. AT commands ...
0
votes
1answer
20 views
ESP8266 blink not building to esp-01
I am trying the esp8266 esp-01, and did all it asked on the arduino IDE side, but i am having problems compiling and building the blink example into the board
Using: FT232RL usb-ttl in the 3.3v ...
-1
votes
1answer
36 views
ESP8266: Is it safe to use pin 0?
This (maybe stupid) question is bothering me for a long time...
If the pin 0 has to be connected to the ground for uploading a sketch into ESP8266, and after the uploading the chip automatically ...
0
votes
1answer
38 views
Find number in a reply returned via serial
I am communicating with my GoPro via ESP8266 and GET requests.
One of the replies returns a set of predefined number and what I would like to do is extract the number on position "38". This is what ...
0
votes
0answers
27 views
Arduino/ESP8266 no SPI data coming from MCP3008
I'm using an ESP8266 (NodeMCU Dev Kit v1) to read analog data via an MCP3008 ADC chip.
However I'm receiving only zeros when I know non-zero data should be present. I'm using the following code, ...
1
vote
2answers
24 views
When should you worry about interference affecting the analog input?
I made something that uploads the measured current to Thingspeak. Everything works, but i did not place the DC to DC converter on the board because i was worried that it would interfere with the ...
-1
votes
1answer
34 views
Connecting to WIFI using esp8266
This is my code. I am tring to make a connection to my wifi through esp8266.
#define DST_IP "192.168.1.5" // my IP
#include <SoftwareSerial.h>
SoftwareSerial mySerial(0, 1);
void setup()
{
...
1
vote
0answers
28 views
ESP8266 pin multiplexing possible?
I am trying to use Adafruit's ESP8266 implementation for a project of mine, which makes use of a bunch of sensors. The problem I have is the limited amount of pins available from ESP8266:
2 pins are ...
0
votes
1answer
29 views
No Response from ESP8266 WIFI
I am getting no response back from an ESP8266 WIFI with arduino mega using library ITEADLIB_Arduino_WeeESP8266.
//serial monitor response
setup begin
FW Version:
to station + softap ok
Join AP ...
0
votes
1answer
26 views
Retrive value from thinkspeak using ESP8266 with Arduino setup
I just started learning esp8266 and in my first project I am successfully able to send data to thinkspeak.com using esp8266 with following code:
uploadData() {
String apiKey = "ESDS8678890SDDS";
...
0
votes
1answer
45 views
ESP8266 sending GET Request and getting 408 Timeout error
I am using esp8266 to send a GET Request but I am getting 408 Timeout error.
Here is a screenshot of my output.
1
vote
2answers
33 views
using esp8266 core for arduino
I am working on a project of wireless sensor network in which data is collected at a central node using nRF24 modules and RFNetwork.h library.
Now I want to post that to the internet using the famous ...
0
votes
1answer
65 views
How to use voltage divider between ESP8266 (3.3v) and IR proximity sensor (5V)?
I am a software developer and I don't know much about circuits so I need help.
I have an ESP8266 (esp-12) 3.3V and I'm planning to use it with an IR proximity sensor (runs between 4.5-5V). I have 2 ...
0
votes
1answer
21 views
ESP8266 module cutting connection with PC via USB
My Arduino UNO is connected directly to the ESP8266 (01) WiFi module. The Red and Blue LED flashes and it seems to work properly. But when I connect the UNO to my computer, the module refreshes at ...
0
votes
0answers
34 views
How can I program ESP8266 with Arduino Uno pins 0 and 1? [duplicate]
Please how I can connect the ESP8266 module with the Arduino in the correct way and how can I program it? Please send me the full code with the connection and the libraries.
I have tried many ...
0
votes
3answers
76 views
Critical sections in Arduino, interrupt consuming data
We all know the interrupts, but how do they really work?
The problem:
In my sketch an interrupt method (invoked when pin goes high) is consuming data from a buffer and the main loop() is filling the ...
3
votes
1answer
100 views
Streaming audio from PC to Arduino over WiFi
Say I wanted to, purely hypothetically, set up a pirate radio station by connecting an Arduino to a WiFi network away from home, streaming music to the Arduino, decoding it, and broadcasting it with ...
0
votes
1answer
60 views
Trying to send data to the server and AT+CIPSEND not working correctly
Sending data to the server(thingspeak.com/184.106.153.14) with AT commands on serial monitor works fine but whenever i upload the sketch ,the following always return false if(Serial.find( ">" ) ). ...
1
vote
0answers
30 views
Why does getting list of files from SD card FAIL if not printing to Serial? (ESP8266)
I've got this piece of code for reading a list of files from root directory on SD card, which I run on ESP8266 chip (maybe it makes a difference):
File dir = SD.open("/", O_RDONLY);
int n = 0;
...
3
votes
0answers
60 views
Shield:FAIL problem in ESP8266-01 with Arduino UNO
I have been working on a Security System project wherein I should get an email if the PIR sensor detects any human presence.
I have used an Arduino UNO, ESP8266-01 WiFi module and a PIR sensor.
Power ...
1
vote
0answers
66 views
Sending data from Arduino UNO as a SOAP request
I have a servo motor on one end which can be turned ON and OFF with Web Service sending SOAP request. In the other end I have my Aurdino UNO with ESP8266.Currently, I can able to send HIGH or LOW ...
0
votes
1answer
44 views
Can I apply a Kalman filter to DHT11 data?
I want to apply a Kalman Filter to the humidity data which I retrieve of the DHT11.
How can I do that?
1
vote
0answers
49 views
Non-blocking MQTT library
Are there any MQTT libraries that do not block while connecting?
I'm currently using PubSubClient, and the connection part contains this code:
...
0
votes
1answer
41 views
Arduino UNO stuck in Setup function when interfacing UNO with ESP8266 module
Following is my code that i am trying to use it with Arduino Uno with ESP8266 module but my code stucked in setup function why is that.
#include "ESP8266.h"
#include <SoftwareSerial.h>
...
1
vote
1answer
61 views
How to use potentiometer on one Arduino to control servo on another Arduino via WiFi?
I want to connect a potentiometer on one Arduino (master side) and send the readings to another Arduino (client side) to run a servo motor. The communication between the two Arduinos should be via ...
0
votes
1answer
30 views
Arduino hourly sensor with motion sensor issue
I am trying to upload DHT11 & photocell data hourly. But I also want a motion sensor upload while the motion detected. What kind of function should I use for the PIR to work while DHT is on delay? ...
1
vote
1answer
20 views
Arduino sensors with various periods
Right now I have DHT11, PIR sensor, relay, and a photocell on the same board. I am planning to upload the data to a web server. But I want both DHT11 and photocell to be uploaded hourly; PIR and relay ...
0
votes
0answers
22 views
Retrieving Javascript XMLHttpRequest getting entire page
I am trying to send a URL over to ESP8266. Instead of sending the URL, I receive the entire webpage HTML and Javascript codes.
Here's my javascript code on my page:
jQuery(function($) ...
1
vote
1answer
101 views
Arduino Nano ESP8266 software serial problems
I have a problem with my Arduino Nano ATmega328 and my ESP8266 01 module. I have connected the ESP8266 on my Arduino board without FTDI.
I have made the following connection:
I an using a 5V ...
0
votes
2answers
77 views
How can there be not enough current?
I am new to the Arduino world. I have a question regarding current that the Arduino outputs over its 5V port. Why is the current in the Arduino too weak for current hungry circuit when the only thing ...
0
votes
1answer
61 views
ESP8266 blue led stays stays on [duplicate]
I have found a similar qustion to mine but there was no good response.
I've connected my ESP8266 to Arduino UNO.
Then I got some trouble with software serial communication with Arduino and decided ...
1
vote
0answers
42 views
Multi-file arduino esp8266 sketch sharing a reference to server
Transferred from stackoverflow on the advice of @Gee_Bee:
I can get Writing a Library for Arduino to work as well as
Breaking a sketch into multiple files and Classes within Classes
- ...
0
votes
0answers
36 views
Indoor object locating/position sensor with Arduino/Esp8266
I am looking for a sensor that would locate where the board is, in the room.It doesn't have to be real time,but when the board is moved to a different position ,it should be able to project the ...
1
vote
1answer
57 views
Can't compile my library because “String does not name a type”
I am writing a small library to move some code out of the arduino sketch and make it reusable. Problem is that it does not compile since "String does not name a type".
This is my code (reduced):
...
1
vote
2answers
60 views
Why does my PIR sensor stay high with ESP8266 breakout board?
I have a PIR sensor attached to a Amica nodeMCU board routing 5v from VIN and attached via USB port for testing. When motion is deteted it connects to the internet and sends data to IFTTT which i ...
1
vote
0answers
85 views
ESP8266 GET OR POST Request Timeout Error
i am using ESP8266 module serially with PC and i also tried it using uno
I am stuck at the following point
I am able to made connection to server but when i will send the following command
POST ...
1
vote
1answer
33 views
Low-Pulse Occupancy and Voltage Divider
I have a PPD42NS dust sensor I'd like to hook up to an ESP8266-01 microcontroller. The ESP8266 uses 3.3v logic, but the PPD42NS uses 5v. The PPD42NS uses low pulse occupancy as output.
I'd like to ...
0
votes
1answer
60 views
Not seeing frames returned from client when using ESP8266 Wifi Shield
I'm trying to make a web server using an Arduino R3 and Sparkfun ESP8266 Wifi Shield. I've built a webpage that has a form I would like to control the Arduino with.
Currently my sketch can ...
0
votes
0answers
296 views
ESP8266 (Wi-Fi Module) interfacing with PIC 16F or 18F microcontroller
Has anyone interface PIC16f877A or PIC18f4520 or any other PIC microcontroller with wifi ESP8266 Module, need some sample code to send and hit url using TCP connection command.
My hardware part is ...
1
vote
2answers
84 views
ESP8266 shows garbage in serial monitor
I have my ESP8266 connected via serial to USB like the image shows:
It worked just fine, however, when I tried flashing Blynk code
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
...
1
vote
1answer
177 views
HTTP POST request to IFTTT
I'm trying to send a POST request to IFTTT from a Node MCU. Instead of writing the code from the scratch, I've tweaked an already existing code (for GET request). It does not seem to work, what am I ...
0
votes
3answers
157 views
Esp8266-01 AT commands returns random chars and/or “ERROR”
I'm trying to make my esp8266 work with my arduino.
But when I send AT commands I get some weird symbols and some functions return "ERROR"
Here's the code I'm using.
#include "SoftwareSerial.h"
...
