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.
-1
votes
0answers
13 views
Why esp8266 not receiving more than 1 digit values?
I need to receive 6 digit floating point value to arduino (eg: GPS coordinates). Data can be send from a web page or android app. What method should I follow. How can I connect esp8266 to arduino uno. ...
-3
votes
0answers
21 views
How to send some GPS coordinate values from a web page to Arduino using ESP8266 module
I want to send GPS data from my computer to Arduino using esp8266 (esp01)
Arduino uno or Arduino Mega.
0
votes
0answers
15 views
ESP 8266 module outputting garble
I have ESP8266 shield for the Arduido (http://www.ebay.com.au/itm/like/201612329295?chn=ps). It was working but now it's not. I ran the command
AT+UART_DEF=115200, 8, 1, 0, 3
and since running that ...
2
votes
3answers
61 views
Help using thermistor with esp8266
So I am trying to use this thermistor to measure temperature and with this code below it always puts the same value (2147483647). I used this tutorial to do the wiring and coding. I don't think the ...
0
votes
1answer
30 views
How to send data in response to HTTP get request from ESP8266?
I'm trying to control some RGB LEDs with ESP8266. I have built an HTML page to set the color and send the RGB color code to the ESP using HTTP get request. Everything works as expected. I just want to ...
2
votes
2answers
43 views
Fastest way to send serial commands and do something
I am trying to send a lot of serial commands really fast. I basically need to change color of my LED strip many times per second (10 times per second should really be enough). If I do this over WiFi, ...
0
votes
0answers
22 views
Problems in calling a PHP script from ESP8266 using Arduino
I am also doing the same thing on a local server. I am calling a PHP script using AT commands. I am doing it right from the serial monitor so, I have not developed a code for it. I am listing out the ...
3
votes
1answer
25 views
WiFiEsp not working on Software Serial, working fine on Hardware Serial
What I want to achieve
I want to connect to my wifi network using Arduino UNO and ESP8266 using WiFiEsp.h library over `SofwareSerial, since UNO doesn't have additional H/W serial.
What I am able to ...
0
votes
1answer
21 views
Fast I2C communication between ESP8266 & PCF8591
I need a faster commnunication between the esp and the adc so i found this
https://github.com/pasko-zh/brzo_i2c.
Original wire Example
#include "Wire.h"
#define PCF8591 0x48
byte a0;
void setup()
{
...
0
votes
0answers
25 views
Converting arduino uno as an router with help of Ethernet shield and esp8266 module
Is it possible to connect to the internet using an RJ-45 port on ethernet shield and then transfer the information over to the esp8266 module and use it as a wifi router
1
vote
1answer
21 views
ESP8266 SPIFFS rename a file
// rename the file "LOG.TXT"
String logname;
logname = "LOG";
logname += Clock.getMonth(Century);
logname += Clock.getDate();
logname += ".TXT";
SPIFFS.rename("LOG.TXT", logname.c_str());
//...
3
votes
1answer
48 views
Send serial commands through IDE while RX pin is in use
This is really a two part question. I have an ESP8266 hooked up to USB. I have connected my LED strip (WS2812B LEDs) to the RX port, so I can control them individually and so on. I realised WiFi is a ...
0
votes
1answer
31 views
How to read NodeMCU GPIO pin status?
I am setting up a page on NodeMCU running as a web server and I want to be able to turn on and off a light based on the url being clicked.
I want to know how I can get the status so that I can set ...
0
votes
4answers
47 views
How to make a 5-volt relay work with NodeMCU?
I have hooked up 2 channel 5-volt relays with NodeMCU v1.0 as shown in the fritzing below.
Relay are powered with a different power source than NodeMCU.
As of now, I am powering the NodeMCU from my ...
0
votes
1answer
20 views
Additional boards manager option is missing from arduino ide
I am new to arduino . The project I am trying to do,I want to install esp8266 extention . But additional boards managers url option is missing from arduino ide . What should I do to add the extension?
0
votes
1answer
17 views
Sending NEC IR signals makes LED strip blink
I'm trying to make my ESP8266 (running NodeMCU meaning Arduino code gets compiled on it). I followed a guide and now I can read the IR codes from my remote using my Arduino UNO, and then send them to ...
-1
votes
0answers
23 views
Configuring ESP8266 with UDP,Keypad and LCD
#include <Keypad.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <LiquidCrystal_I2C.h>
const byte ROWS = 4; //four rows
const byte COLS = 3; //four columns
//define ...
0
votes
1answer
24 views
Why won't my esp8266 show up in the list of wifi networks, after flashing to it?
I am making a WiFi jammer, and i have done everything in this tutorial correctly!
https://www.youtube.com/watch?v=r5aoV5AolNo
It basically says to get the NodeMCU-flasher and flash the bin file in ...
0
votes
2answers
44 views
Arduino TCP Server establishes connection with client but does not receive data
I am trying to send and receive data with the TCP server but I am not receiving data.
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
// Parametros de conexion a red WIFI.
const char* ...
0
votes
1answer
29 views
Receiving message from arduino through wifi
I am new to arduino . I went through the basics . I want to receive message from arduino uno r3 in my laptop(ubuntu) . I have esp8266 wifi module . Arduino and esp8266 connection done . How do I ...
1
vote
3answers
38 views
How to change the baud rate of ESP8266 (12E) using an Arduino Uno?
I have with me an Arduino UNO and an ESP8266 (12E) WiFi Module. I need to make a webserver using the two. I read that the default baud rate for ESP8266 is 115200, and that the software serial pins can'...
0
votes
1answer
36 views
ESP8266 ESP-12E no AT commands
I tried to connect to a standalone out-of-the-box ESP-12E module via CP2102 USB-UART converter and with putty terminal. The problem is that I only recieve this part of the message after reset: (at ...
0
votes
0answers
47 views
Communication between two ESP8266
I am using two arduinos, both arduino uno, and two esp8266(ESP 01). For my project, I need to send a data from one of the arduinos and the second arduino should produce an output according to the ...
0
votes
1answer
29 views
ESP8266 does not appear to be connected & respond to the AT commands
I'm tryIng to program ESP8266 chip using TTL to USB converter but when I upload my code and open serial monitor it doesn't respond to AT commands and only show points or these two lines in the below ...
0
votes
1answer
42 views
Arduino Uno with ESP8266
#include <stdlib.h>
#include <SoftwareSerial.h>
#define SSID "name-of-my-network" //replace XXXXX by your router SSID
#define PASS "password-of-network" //replace YYYYY by your router ...
-1
votes
1answer
26 views
Using an esp8266, how can I create a circuit to measure 2 different analog inputs (not simultaneously) with only one ADC pin available (A0)
I'm currently using a circuit with 2 separate transistors that can be switched on or off to measure 2 separate voltage inputs.
The reason for this is because I'm using an esp8266 which has only one ...
-2
votes
0answers
47 views
Arduino - ESP8266 code for uploading at thinkgspeak.com
#include <Narcoleptic.h>
#include <SoftwareSerial.h>
#include <stdlib.h>
// LED
int ledPin = 13;
// LM35 analog input
int lm35Pin = A0;
// replace with your channel's thingspeak ...
1
vote
1answer
32 views
Can't send SoftwareSerial to Class Object
I have a problem when to try to define SoftwareSerial into class..
Here my detail My class
class MyEsp8266
{
protected:
SoftwareSerial *esp8266;
public:
MyEsp8266(SoftwareSerial *...
0
votes
0answers
42 views
WiFiESP constantly losing connection
I am working on a traffic light with a ESP8266-01 wifi module on an Arduino.
The wifi card should act as a server and wait for a request to come in at /R (red), /Y (yellow), /G (green) or /O (off) and ...
-1
votes
1answer
42 views
Serial read in ESP8266-01 not working
I am new to programming. kindly bear with me. I am trying to use ESP8266-01 device for serial read and write application. Before writing the full program for my application, i wanted to test how it ...
0
votes
1answer
25 views
Using Youtube API with ESP8266 = redirection problems
I am using ESP8266 programmed from Arduino to get data from the Google Youtube API. API, of course, works great in a browser using URL:
https://www.googleapis.com/youtube/v3/channels?part=statistics&...
1
vote
0answers
23 views
can i program Nodemcu using android phone? [on hold]
I know that we can program Arduino using Arduino ide android app.But how could i program Esp8266(Nodemcu) using android phone?
1
vote
0answers
34 views
Can't Flash ESP8266 latest firmware, says “Fast Flashing error” and "Invalid head of packet(' ')
I can't figure out how to flash the firmware found on http://www.electrodragon.com/w/ESP8266_AT-Command_firmware. I am using ESP8266 Download tool v3.4.4. When I am adding a firmware in download path ...
-2
votes
1answer
48 views
Simplest ways to send HTTP request on WeMos/ESP8266
So I have done a lot of research but everything I have found is way too complicated and fancy. I just need doo the same thing what this does https://script.google.com/macros/s/...
-2
votes
0answers
19 views
Connecting Arduino To my app using ESP
I Want to connect my arduino-nano to my android app using wifi(esp8266) without using the internet ,but i cant find a Solution on how to make this work.
Thanks for any help!
1
vote
2answers
46 views
toInt error when converting character of string to interger
with the following code:
int foo = bar[1].toInt;
or
int foo = bar[1].toInt();
I get this error
request for member 'toInt' in '*(bar + 1u)', which is of non-class type 'uint8_t {aka unsigned char}'...
2
votes
1answer
53 views
Wakeup Pin ESP8266
Is there a way to put an ESP8266 into a sort of "sleep" mode where it draws less power than usual, and then wakes up on a pin going high? I've tried doing this with delay, which still draws 20 mA, and ...
5
votes
2answers
52 views
RTL8170 Web Server - client unable to connect
RTL8170 is a new module, which is in many ways better than the old ESP8266 module. We are able to flash this module with Arduino using an Ameba Writer, and it should be able to support any code that ...
-1
votes
0answers
48 views
Sound through ESP8266 Arduino [on hold]
I'm new in Arduino things and i need to get specific sound mp3/wav from website http://example.com/, is there any way to do that thing.
I have Arduino Uno r3 and esp8266.
0
votes
0answers
59 views
Arduino Wemos D1 and TFT LCD shield connection
I'm new in Arduino. I want to connect a MCU Friend 2.4" colour TFT shiled to a WeMos D1. But WeMos D1 has only one analogue pin.
And I can't connect it like this (in sample code):
#define LCD_CS A3 //...
0
votes
0answers
27 views
Slack bot integration using ESP8266 gets “ssl->need_bytes=16432 > 6859”
Trying to use Uri Shaked Slack bot code using a Adafruit Father Huzzah ESP8266 WiFi.
Have created the slack bot integration and copied the API-key. The code connects to the WiFi and does the time ...
0
votes
0answers
14 views
ESP8266 Sending commands to Thinkspeak via monitor not returning IPD line
I'm having trouble sending a GET request to Thingspeak via the serial monitor. As you can see in image I can correctly open the connection, send the request off which appears to succeed but no IPD ...
0
votes
1answer
59 views
Can I use NodeMCU with Arduino to connect to wifi or do I need a separate module?
I am just starting out with electronics. I got a Arduino Mega 2560 board and am able to do simple things like blink. Now I want to start a project on IoT and want to connect this board with internet. ...
0
votes
1answer
69 views
ESP01 unsuccessful code execution
I am trying to upload the Blink example from the Arduino IDE to a ESP8266-01 module using an Arduino Uno as serial programmer.
Now, the upload is successful but, upon restart (and disconnecting GPIO0 ...
0
votes
2answers
144 views
fatal error ESP8266WiFi.h: No such file or directory
I want to turn my esp8266 into access point so that i would able to
connect directly to it.i use the following sketch but when i select
GENERIC module ESP8266 from menu the two libraries which is
...
0
votes
0answers
36 views
how to get response of issued AT command for ES266 on arduino programatically
I'm successfully running AT commands via Serial Monitor. But now, I'm issuing AT commands via arduino code and facing problem in getting correct response.
Goal: After issuing AT commands ...
0
votes
1answer
23 views
ESP8266 ASyncTCP class example
I am new to ESP programming on arduino as before i was developing on eLua. There was some memory problems on lua script so i decided to move to Arduino. After looking at some examples i found a ...
0
votes
1answer
30 views
ESP8266 and Arduino integration
I am trying to upload a sketch and getting below error:
error: failed reading byte
warning: espcomm_send_command: cant receive slip payload data
warning: espcomm_sync failed
error: espcomm_open ...
0
votes
0answers
31 views
Connection between Arduino Mega 2560 , ESP8266-12F , PCF8574
Another start for achieving something new ,
I want to connect ESP8266-12F , Arduino Mega 2560 Board And the PCF8574 I/O Expander (I can use MCP23017 also) together , Where ESP8266-12F will take ...
0
votes
1answer
53 views
Arduino WiFi/ESP8266 WiFi Password Changed
I am working on a project for a friend who is not very tech savvy involving an ESP8266. It will need to be connected to his WiFi network.
The issue is that he occasionally changed the password to ...
