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
26 views
Low power wifi temperature sensor
I want to make a wifi-enabled temperature sensor and place it inside my HVAC system to measure and push the temperature to a central server, every minute or so.
I have a LoLin NodeMcu v3 unit laying ...
0
votes
1answer
17 views
ESP-12e, Arduino IDE, NeoPixel Strip - Flickering
I have a NeoPixel RGB strip connected directly to my NodeMCU ESP12-e board. I'm using Arduino IDE with the NODEMCU 1.0 ESP 12-e module to programm the board.
ESP12-e | NeoPixels
GND ---> GND
3....
-1
votes
0answers
43 views
ESP8266 kills home network [on hold]
I am experimenting with some ESP8266 modules I just bought. I have no experience with them, I am a beginner, please be patient with me. My problem is that whenever I connect the ESP8266 to the Arduino,...
0
votes
0answers
55 views
ESP8266 Programming using ESP-01 to USB converter
I am new to ESP8266. To ease out the task of programming esp8266, I bought this: ESP-01 ESP8266 Programmer CH340G Chip USB WiFi Wireless UART GPIO0 Adapter.
Configured Arduino Interface to run AT ...
-3
votes
1answer
35 views
Arduino & ESP8266
I connect my ESP to Arduino to my PC.
If I send AT commands from my serial monitor, I receive full response. I use 115200 and both NL & CR in my serial monitor.
ESP TX is connected to TX Arduino,...
-1
votes
1answer
22 views
Serial communication between NodeMCU and Arduino doesn't work when I try to use the DC jack or Vin
I have a unidirectional communication from NodeMCU (ESP8266) -> Arduino UNO. The communication works when I power both the devices to my computer. Note that since it is from NodeMCU to Arduino only, I ...
2
votes
1answer
72 views
ESP01 connected to Arduino cant read from UART while connected from external power source
I have Arduino UNO + connected NodeMCU ESP01 module into it that communicate via serial pins. NodeMCU is powered from Arduino 3.3V pin. My idea is that ESP01 receives MQTT messages, sent it to Arduino ...
1
vote
0answers
27 views
Item positioning with BLE [closed]
I need to track on about 500 boxes in warehouses, the trace should be indoor and outdoor. the accuracy is not so important -> 5-15 meters is enough .
The warehouse size including the yard is about ...
1
vote
3answers
52 views
Arduino ESP8266 module communicate through Arduino IDE terminal [closed]
I am completely new to Arduino and trying to setup the Arduino and ESP8266 module. Thereby I used this scheme to set it up:
Where I use this code:
`#include <SoftwareSerial.h>
const byte ...
-1
votes
2answers
41 views
Error in the arduino code
This is my arduino code for interfacing with an ESP8266:
#include <ESP8266WiFi.h>
int incomingByte;
String value;
char a;
int flag=0;
String valueserial;
int valueint;
const char* ssid = "...
1
vote
0answers
27 views
AT+CIPSEND command closed the connection automatically
I don't know why CIPSEND command closed the connection after sending done without CIPCLOSE command. Is it normal?
If I want to keep the connection, what should I do in this case?
0
votes
0answers
33 views
Uni-directional communication between NodeMCU and Arduino spits out garbage
I am sending data from ESP8266 (NodeMCU) to Arduino using serial and 9600 baud rate on both sides. Since it is uni-directional and from NodeMCU to Arduino, I am not using a voltage regulator and I ...
0
votes
0answers
30 views
Arduino UNO and ESP-12E serial connection
I just bought an ESP-12E module and I don't have a usb to serial adaptor. How I can connect ESP-12E via ARDUINO UNO to PC.
I want to use Arduino IDE to upload code to ESP via ARDUINO UNO.
Here is the ...
0
votes
1answer
26 views
Cast from uint8_t* to char - loses precision
I am trying to decode a received (via websocket) message (JSON) on my ESP8266.
The websocket library provides the data as uint8_t. The JSON library only understands char arrays. As far as I know ...
0
votes
1answer
40 views
Arduino Uno Wifi Module ESP8266 AT Command Test error [closed]
When i Connected Rx>Rx (Rx Of module To Pin 0 Of Arduino) And Tx>Tx ( Tx Of Module To Pin 1 Of Arduino), The AT Command Test shows The Following error With Scrambled Words, but when I Connect Rx>Tx (...
0
votes
1answer
32 views
ESP8266 Upload hex file Arduino IDE
I am using ESP12E Wifi module, using library based on Arduino. Is there any way I can upload hex file of the project to esp8266 using Arduino or any tool?
I need to send hex file instead of code to my ...
0
votes
1answer
89 views
Arduino resets my MacBook Pro
Every time I connect the Arudion Uno to the Mac through USB port, the Mac restarts. Why is this happening? How can Arduino make such a sophisticated machine reset? This also happens with my ESP12E ...
0
votes
2answers
37 views
SoftwareSerial doesn't seem to work with ESP8266
I am trying to issue AT commands to the ESP8266 wi-fi module from Arduino Uno programmatically, but to do that, I can't get SoftwareSerial to work.
I've tried multiple ways of identifying the root ...
0
votes
0answers
36 views
Can't send AT commands using Arduino Serial Monitor but can receive data
I've been sitting with this problem for a while now. I have a ESP8266 WiFi module and I connected it to my Arduino Uno powering it from the 3.3V supply. Initially I tested it with the serial monitor ...
0
votes
2answers
30 views
connecting ESP8266 to mega 2056
im trying to connect wifi module to my MEGA 2560 board.
i set up the board as the picture bellow
and my program is as follows
#include <SoftwareSerial.h>
#define DEBUG true
SoftwareSerial ...
0
votes
1answer
46 views
Arduino retrieving PHP echo using ESP8266
I want to retrieve the echo string. Here is my php code
<?php
echo "<hello word!>";
?>
I am using ESP8266 and Arduino Uno. I have managed to send the request but it's not returning ...
0
votes
0answers
21 views
Unable to connect esp8266 12 module with arduino uno
Here is what I am doing
Arduino(UNO)--------Esp8266
3.3 v -- vcc
TX -- RX
RX -- TX
3.3 v -- EN(ch_pd)
GND -- GND
there is no blinking of LED on Esp8266, sometimes the LED is on and ...
0
votes
1answer
35 views
Get data from Arduino to webpage using ESP 8266
I found out this html code to control Arduino via ESP8266.
My question is how to send data from Arduino to webpage??
I was suggested using ajax. But i'm not handle it.
Thanks for any help.
0
votes
1answer
56 views
How to use a rotary encoder on NodeMCU with Arduino code?
I have a standard 5 ping rotary encoder (3 pins for encoder, 2 pins for button).
I'm trying to get a working code that manages to read the rotary encoder.
I began with the code I found here: http://...
1
vote
1answer
28 views
How to change the default name of ESP8266-12E module
At home I have two modules connected as the picture below:
Is there any way to change the default name (ESP_xxxxx) that the module generates?
0
votes
1answer
95 views
Can't get ESP8266 working
I have received an ESP8266 (ESP-07) Wi-Fi module from DealExtreme (Link: http://bit.ly/2dFJdxE).
It is a 4-pin module with the following pins: RX, TX, VCC and GND.
The module has a switch so you can ...
-1
votes
1answer
41 views
Using Arduino GSM with WiFi
I have a project which require multiple data to be sent online from a moving bus. I am using ESP8266F modules to send the data.
I am wondering what arduino modules to buy that will act as an access ...
0
votes
0answers
22 views
Esp8266 gpio pins problem
I programmed my esp8266-01 in arduino ide. I uploaded that code:
void setup() {
pinMode(2,OUTPUT);
}
void loop() {
digitalWrite(2,HIGH);
delay(500);
digitalWrite(2,LOW);
delay(...
1
vote
0answers
28 views
Setting up Huzzah ESP8266
I am trying to set up a Huzzah ESP8266 and can not get it to work. I have scoured the internet for help and to no avail. I have the board loaded with a baud rate of 115200 and am transmitting at 80 ...
1
vote
1answer
40 views
ESP8266 12e Arduino IDE outputs garbage values on serial monitor
I recently started using the esp8266 12e (amazon link: https://www.amazon.com/gp/product/B010O1G1ES/ref=ask_ql_qh_dp_hza) and hooked the board up to the Arduino IDE.
When trying to run any of the ...
1
vote
2answers
60 views
How to Factory reset ESP8266? [closed]
I want to use ESP8266 to send emails. I tried twice flashing the Firmware to a particular firmware as suggested in a tutorial. Now both my ESP are unresponsive to AT commands. Let me know the way to ...
1
vote
0answers
28 views
Esp8266 not working
I connected all the pins as in datasheet, except ch_pd.
But when I connect ch_pd to 3.3 V , the red light on esp8266 goes dim. I used 3.3 V, 250 mA power supply. What is the reason for this?
0
votes
2answers
46 views
NodeMCU esp8266 on Arduino IDE doesn't detect Wifi
I am using a NodeMCU 1.0 v3 and I am trying the example sketch (wifiscan) but it just doesn't pick up any AP in the house. My phone and laptops etc are able to pick up the APs though.
Other sketches ...
2
votes
0answers
37 views
Arduino Mega 2560 + ESP8266 Problem with GET Request
I have an ESP8266 module connected to my Arduino Mega 2560. My goal is to send a GET request as below to the network:
api.pushingbox.com/pushingbox?devid=vEB39F555B1B8295?tempData=cabbages
If that ...
0
votes
1answer
61 views
SD card shield not working on 3.3v
My SD shield works nicely on 5v supply, but does not detect SD card on 3.3v. Could someone explain the possible reason behind this? Could you also provide a solution for this?
I've worked with it on ...
0
votes
2answers
30 views
ESP8266 GET REPLY ERROR 501
I am trying to build a home automation system and i am unable to get data from a website using the arduino sketch, however i am able to get data from the website when i enter the AT commands into the ...
-3
votes
2answers
40 views
Errors in code, LM35 temperature logging to web server
trying to experiment with Wemos D1 and LM35. Need to have temperature reading on the ESP IP. Found the following project to be exactly matching my requirements but I am having certain errors in it. ...
1
vote
2answers
77 views
WiFiClient.connect() does fail all the time (ESP8266 Core for Arduino)
I have one ESP(1) opening an AP and running a server on it. The other ESP(2) is running a client on it and is connecting to the AP and after that trying to connect to the host server. The connection ...
-1
votes
1answer
27 views
ESP01 PROBLEM: ip not showing up
Here is my progress on the ESP-01 ESP8266 module. I can't seem to go further, because the system doesn't have an IP and I tried all methods but still failed.
ððAT
OK
AT+CWMODE=1
OK
AT+CWMODE?
+...
0
votes
1answer
59 views
ESP8266 - How to know if incoming connection is from AP or station network?
I have an ESP8266 module connected with my Arduino configured as a server, with both AP and station modes (AT+CWMODE=3) activated, and I want to know if an incoming connection comes from the AP's ...
0
votes
1answer
56 views
Communicate with ESP8266 RX/TX
I just managed to get a unofficial Arduino WiFi shield to work. But the ESP is flashed on its own now - providing only information to the USB->TTL converter and therefore the output goes straight to ...
0
votes
1answer
38 views
using an ESP8266 shield on my Arduino Uno R3 with an unofficial library
I'm using the following Makefile: https://github.com/sudar/Arduino-Makefile
It works very well and I was able to get my LED to blink.
Now I bought a WiFi Shield which is NOT supported officially by ...
0
votes
1answer
49 views
Converting uint8_t to String - unexpected result
I'm working on a remote control code for ESP controller. Using ESPwebserver and Fastled. When I try to return a value of an uint8_t, as a POST response, i got strange result here is the relevant code:
...
2
votes
2answers
50 views
What are the logical errors in this piece of code?
The client always reply with "ThisCodeTurnsTheUnoOnn" or ThisCodeTurnsTheUnoOff" based on some conditions.
This piece of code is inside arduino uno's void loop().
Expected behavior:
The arduino ...
0
votes
0answers
97 views
Exception 29 ESP12E Arduino
I am getting exception 29 every time I make request to HTTP using GET function. I am requesting HTTP every 20-30ms but using Millis I am only reading request at 100ms in order to avoid any overflow or ...
0
votes
2answers
60 views
Cannot ping ESP8266's IP address from a computer on the same network
I have an ESP8266 module connected to my Arduino Mega 2560. I sketched a simple code to pass whatever command I typed from the Serial Monitor to ESP8266 and vice versa:
void setup() {
Serial.begin(...
1
vote
2answers
61 views
analogRead DC Motor - Negative value
I was trying to play with Arduino this weekend and connected a DC motor to A0 and GND to measure the voltage it provides when I rotate it.
However,
when I rotate the DC motor with my fingers to test ...
2
votes
1answer
53 views
Powering ESP8266 from Leonardo's 3.3v pin
I'm new to Arduino, and I'm trying to connect my Leonardo via WiFi using a ESP8266 module. What I want to know is if I can power it directly from the onboard 3.3V pin like in the image:
Or do I need ...
0
votes
0answers
29 views
ESP8266 shorting rx pin to vcc
I cannot program my ESP8266 (espcomm_sync failed), I am using Arduino Uno to program it by using it as a USB to ttl converter (shorting reset to gnd)
I tried almost everything on the internet:
giving ...
0
votes
0answers
112 views
Connecting to WiFI through WPS (ESP8266 Sparkfun Shield)
I'm trying to connect my arduino to my wifi network using WPS
push button but I'm not sure how to set it up. There are no examples of this in the library and some googling didn't reveal anything ...
