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
1answer
19 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? ...
0
votes
1answer
15 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
18 views
Communication between two ESP8266
I am trying to send data from one Arduino to another Arduino over Wifi. I want them to connect to a router and talk to eachother (serial communication). Can you please point me how to do this? Any ...
0
votes
0answers
13 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($) ...
0
votes
0answers
33 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 with out ftdi.
I have made the following connection:
I an using a 5V ...
0
votes
1answer
37 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
20 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
39 views
ESP8266 + cooperative multitasking? [closed]
Has anyone successfully got the ESP8266 to cooperatively multitask their own code? I don't just mean running ESP8266 housekeeping (wifi, tcp, etc) but rather 2 "user space" tasks at once, in addition ...
0
votes
0answers
19 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
26 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):
...
0
votes
0answers
36 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
30 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
28 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
43 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
82 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
1answer
51 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>
...
0
votes
1answer
61 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
76 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"
...
1
vote
1answer
59 views
ESP8266 Firmware Upgrade
Can I upgrade my ESP8266 firmware by connecting the pins in Arduino Uno, or do I still need a USB UART to Serial?
1
vote
0answers
71 views
Is replacing USB serial WITH ESP8266+ESP link feasible?
ESP8266 (01-512k,) Arduino Uno (clone), Arduino IDE, Python 2.7.6 on Macbook pro running OSX 10.10.4 64-bit.
Hello!
I'm using a motion sensor with the following setup:
Arduino Uno+motion sensor ...
1
vote
1answer
52 views
Serial Not Working With I2C
I have been working on a hydroponic garden that is controlled with Arduinos. I have everything working except for the user interface. What I would like to do is have an LCD screen paired with a rotary ...
1
vote
2answers
95 views
ESP 8266 web server using arduino
I have built a system using arduino and Ethernet shield. It gets rgb values through URL and changes an rgb led's value. Today I bought an ESP 8266 12E. I want to change to wifi but I cannot find an ...
0
votes
2answers
85 views
Did I fry my ESP8266 module or was it something wrong with it?
I was trying to connect my Arduino Nano to my home Wi-Fi. To do that, I connected my Arduino to ESP8266 module.
I connected pins
Arduino | ESP8266
3.3V | VCC
3.3V | CH_PD
D10 | RXD
D11 ...
0
votes
1answer
45 views
Error on Uploading Program to ESP8266 via Foca v2.2 (USB to TTL Adapter)
BACKGROUND
To test the capability of uploading program to ESP8266, I use an empty program with only a blank setup function and a blank loop function. The result showed me that there are a ...
0
votes
1answer
62 views
Ideal power supply for ESP8266
What is the ideal power supply for this module? What do you use that works ok?
Will the AMS1117 work?
2
votes
2answers
73 views
How to control nokia 5110 display using esp-01 [closed]
I am working on a smart device using esp-01 to pull data from internet and display on Nokia 5110 LCD display, and send back the resistive touch inputs to my server and display those on my lcd I am ...
0
votes
1answer
106 views
esp8266-01 and arduino UNO communicating over i2c
i am not able to communicate over i2c with my esp-01 as master and UNO as slave. i get special characters sent back to esp, but my esp is sending correctly...
output on my esp-01
output on my UNO is ...
1
vote
1answer
88 views
ESP8266 NodeMCU v3 basic questions
Can somebody please tell me what is the operating voltage of ESP8266?
What is the A0 voltage range?
I am powering it up from USB (5v) and have a sensor that comes back with Analog value, to ...
1
vote
1answer
244 views
Upload with esptool fails with “espcomm_send_command: cant receive slip payload data”
Uploading a sketch to an ESP8266 board fails with:
error: failed reading byte
warning: espcomm_send_command: cant receive slip payload data
warning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failed
...
0
votes
0answers
97 views
Flashing ESP8266
So this may not be the correct place to ask this, but I can't flash my ESP8266 (ESP-01). I have 3.3v and ground connected, Rx to Tx and Tx to Rx on my usb to serial adaptor. I also have GPIO0 ...
0
votes
1answer
190 views
Both red and blue led of ESP8266 stays on
I've connected ESP8266 to Arduino UNO. After a getting a huge trouble I successfully managed to run some AT commands. I have also tested AP mode.
Then I got some trouble with software serial ...
0
votes
1answer
183 views
Esp8266, arduino IDE vs Lua script?
I'm planning to buy an Esp 8266.
Do I really need to learn lua script to play with it ? I have seen some people using it with the standard arduino ide...
Do you need a custom firmware to use arduino ...
0
votes
1answer
107 views
ESP8266 cannot read DHT22
I am trying to build a WiFi humidity and temperature sensor. My board is a nodeMCU using the ESP8266 connected via USB. The board is working fine with various WiFi examples and various serial ...
-1
votes
2answers
70 views
ESP8266 is not responding
I have ESP8266, FTD232 UART, Linux mint 17.3 OS, Arduino IDE 1.6.7,
Following are the connections:
External Power source ESP8266
3.3 V VCC
GND GND
3.3 V ...
3
votes
2answers
201 views
What is the best serial protocol for bidirectional communication with NodeMCU?
Except hardware UART. Main requirements are reliability and simplicity of use. Speed isn't as important.
Details:
I have an Arduino Pro Mini (ATmega328P 5V) controlled via UART.
I wish to connect an ...
0
votes
1answer
139 views
ESP8266 Analog read interferes with wifi?
Short version:
I have a program that connects my ESP8266 to wifi so I can control a relay connected to it over the internet or a button. I also have a sensor for my door. This software works ...
0
votes
0answers
70 views
Getting random values in ESP8266
I followed http://www.martyncurrey.com/arduino-to-esp8266-serial-commincation/#more-1475 tutorial,
I tried all possible solutions found, connecting all pins to vcc, few to ground etc, Whatever ...
0
votes
1answer
248 views
Use ESP8266 as WiFi client connected to Arduino Pro Mini
So i'm trying to use the PubSubClient Library on my arduino mini pro, but I'm connecting to the internet via wifi using an ESP8266.
Using a mini means I have to use software serial to connect to the ...
0
votes
2answers
526 views
Ping IP address using ESP8266 connected to Arduino
I'm wanting to make a system using neo-pixels, an arduino and an ESP8266 module to ping IP addresses on my network to determine if certain people are on our wifi (I'll be pinging mobile phones).
I'm ...
-1
votes
1answer
102 views
3.95 TFT LCD SPI or parallel interface
I would like to get one information about this TFT LCD module . This particular module works with parallel interface with arduino mega and uno.
I am trying to get rid of arduino in my project and use ...
3
votes
2answers
86 views
Watchdog approach
I'm developing up a project that is designed to run 24/7 (an energy monitor) logging via wifi.
Due to a variety of considerations I've ended up with a design that links an Arduino Nano with an ...
0
votes
2answers
49 views
How to integrate ESP8266
Just, to make sure how it works:
I will connect the module to Arduino
it will create AP to which I can connect and send commands via HTTP
So I do not need any special equipment on PC side right, I ...
1
vote
1answer
76 views
ESP8266 (connected to Arduino) only works when plugged into USB power
The Wi-Fi connects when the Arduino is powered by my computer and a serial console is connected, but not if I plug into an outlet.
UPDATE
It seems this is a power issue. I am powering the esp8266 ...
1
vote
3answers
113 views
Can't send HTTP request using ESP8266 and Arduino Uno
I have an Arduino Uno and for Wifi an ESP8266.
My ESP8266 Firmware is
AT+GMR
AT version:0.40.0.0(Aug 8 2015 14:45:58)
SDK version:1.3.0
Ai-Thinker Technology Co.,Ltd.
Build:1.3.0.2 Sep 11 2015 ...
3
votes
1answer
295 views
WiFi repeater using ESP8266 [closed]
I have a ESP8266 and I wonder if it is possible to create a Wi-Fi signal repeater using this module.
I can create a network so that devices connect it.
I can connect to an existing network.
But ...
0
votes
0answers
241 views
How to send data from ThingSpeak to ESP-8266(Arduino) using ThingHTTP
I have made Arduino Kit acting as weather station. It sends data of the sensors connected (DHT11 & LDR) to the ThingSpeak web-server.
Now I want to perform some actions according to data on ...
1
vote
0answers
59 views
Passing variables between the Intel Galileo Gen 2 and the NodeMCU?
I have an Intel Galileo Gen 2 development board, and like the title says, I want to use the NodeMCU (ESP8266 Wifi) to create an interactive TCP server and send data from the Node MCU to the Galileo ...
1
vote
6answers
3k views
Connecting ESP8266 with Arduino Uno - WiFi shield not present
I have an Arduino Uno and ESP8266. I want to connect and control an LED from a web server. I made a connection referring to this:
I uploaded the WifiWebServer code to the Arduino, and applied my ...
5
votes
2answers
180 views
Arduino DC motor causes disturbance. What can cause it?
I tried to fix this problem the whole weekend but, after no success I decided to post it here. I would really appreciate any help.
The problem
The Wi-Fi module activates the DC motor and lets it run ...
0
votes
1answer
135 views
NTP Client Library. Set sync provider pointing to public class function. Possible?
I am trying to develop a NTP client library for ESP8266/Arduino to make adding NTP sync an easier task.
Basically, I've thought about a constructor as NTPClient(String host, int interval); and a ...
