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
4 views
ESP12E using Arduino IDE
I am using ESP12E with Arduino IDE. I want to reduce the antenna power of the module. I am transmitting SSID but i want to restrict the range to say 2m. How to do this, is there an API or where to add ...
0
votes
1answer
20 views
ESP8266 Showing junk data while running local WiFi connect
I have connected my ESP8266 through FTDI USB cable and when I try to run the sketch for connecting local WIFI network it displays:
ESP8266 is getting external power.
RX - TX or connected to ...
-4
votes
0answers
16 views
How can i Receiving data from php(mysql) to wemos D1 R2 (esp8266 included) usig WiFi?
i am beginner at this thing actually and need help for my project.
i was gonna make my wemos d1 r2 receiving a command (one or zero) from Database (i try to use mysql). i already bought a hosting and ...
-1
votes
1answer
57 views
ESP crashes, throwing exception 29
I am getting exception 29 and it crashes the ESP12F. I am sending HTTP Request every 15-30ms to ESP. It sometimes crashes after thousand request and sometimes crashes after few hundred request. My ...
0
votes
0answers
15 views
Call Rest API from ESP8266 and Arduino uno R3 [on hold]
I just want to make a call to any of GET API request from ESP8266 and Arduino Uno (I don't want to read any response back).
My rest functionality will be taken care by the API, because doing things ...
-1
votes
0answers
14 views
Websocket Client app not working for esp8266 [migrated]
I have installed two different libraries of websockets, both of them try to connect to echo.websocket.org, but fails and I get unexpected replied on serial terminal. While trying this library by ...
0
votes
1answer
7 views
User-Agent question
I've seen a few different User-Agents used in demo sketches and am curious as to what the various User-Agent options are and how to determine which one to use.
For example...
User-Agent: Mozilla/...
0
votes
1answer
13 views
EPS8266 ESP-01 Blue led stays lit unless 3.3v logic divider is bypassed, works when reconnected
I am having a very weird and frustrating issue with this ESP01. I am creating a shield on protoboard, and everything checks out as far as I can tell. I am using a 3.3v voltage divider (1k and 2.2k) ...
0
votes
0answers
12 views
ESP8266 ESP-01 doesn't respond
I'm trying to use an ESP-01 but it doesn't seems to respond.
I am able to flash it using NodeMCU, but when I try to start it using ESPlorer I got no response, just a "Communication with MCU......." ...
1
vote
1answer
28 views
NodeMCU : Input pullup in A0 [on hold]
I am trying to port a simple project I have working in an Arduino UNO to a NodeMCU but I am stuck as I am using the analog gpio to receive the input from some buttons, I am always getting always low ...
0
votes
0answers
22 views
ESP8266 - 01 blue led stuck on with nodeMCU firmware, LED control worked before
I'm using a ESP01 for my experiments. I installed a nodeMCU firmware on it using a RaspberryPI:
And I connected a serial with it in baud = 9600. All ok.
Then I use two leds for led blink:
It's ...
0
votes
0answers
30 views
how to Clear up UART FIFO to reduce printing time
A FIFO (First In First Out) is a UART buffer that forces each Byte of your serial communication to be passed on in the order received. To reduce time consumption, too much information printing should ...
0
votes
0answers
19 views
Esp8266 firmware update with uno “chip sync error”
I have an ESP8266-01. I followed the instructions on this
http://yaab-arduino.blogspot.com/2015/12/flashing-esp8266-firmware-arduino.html?m=1
exactly. When I start the firmware update the TX and RX ...
0
votes
1answer
16 views
pH ORP sensor esp12 esp82666
I need to know if there is a sensor that mesure pH and ORP, I have already googled about this type of sensor but i found only AtlasScientific that commercialise this kind of sensor
thanks
0
votes
1answer
43 views
ESP 8266 does not respond for any
I have ESP 8266 Wifi module and Arduino mega Board connected. I use external 5 to 3.3v regulator to power up the module.and mu common (-ve) line on the external power source and Arduino mega GND is ...
1
vote
1answer
64 views
Parse HTTP Request Arduino
I am sending a HTTP Request to my WiFi module http://192.168.4.1/STA/ID=HelloWorld/Pass=Testin123
How can I parse above string in Arduino. First I need to check for STA, if it exists, continue to ...
1
vote
0answers
31 views
ESP8266 stuck in flash mode?
I have the setup described here: https://learn.adafruit.com/esp8266-temperature-slash-humidity-webserver/wiring
I currently have the reset pin set to float and the GPIO0 pin grounded, which should ...
0
votes
0answers
41 views
Serial commands to web browser
I am using this Wifi Shield for arduino.
Using this, there is a possibilty to connect the arduino to a local router in STA mode, and make it as a TCP web server with it's own IP address and PORT ...
0
votes
0answers
39 views
esp8266 (esp-01) - GPIO while deepSleep
I am currently trying to build a small notifier for my mailbox with an esp8266. The basic idea is to switch on a LED, check if mail is in the mailbox (using a photo sensor), then fire up WiFi, post a ...
-1
votes
2answers
46 views
Sending a text/notification with Arduino + ESP8266 Wifi shield [closed]
Is it possible to send a text message using an Arduino and the Sparkfun ESP8266 Wifi Shield using Temboo? I noticed that the ESP8266 might not be supported by Temboo and I was wondering if there is a ...
0
votes
1answer
23 views
Size of String array
I am trying to find out the size of an array like this:
String days[3] = { "Mon", "Tue", "Wed" };
Serial.printf("Size of array: %2d\n", sizeof(days));
for (int i = 0; i < sizeof(days); i++) {
...
1
vote
1answer
18 views
Server checkbox not working properly
I am trying to make an arduino alarm clock to which you can send alarm clock times over the web.
This is the HTML code
<input type="checkbox" name="alarm1" id="alarm1">1</button>
It's ...
0
votes
0answers
49 views
How to do “Http File Upload to webserver” using ESP8266 under Arduino
I need help from you experts regarding uploading file to webserver from ESP8266 under Arduino IDE. I tried searching all over the net but no lead found. Appreciate any help in pointing me in right ...
0
votes
2answers
52 views
OTA Update Esp8266 without IDE
I was wondering if its possible to program the esp8266 to receive firmware updates without the use of an IDE to program.
Use Case:
This device should be setup to the WiFi network scan an IP for a ...
0
votes
2answers
79 views
How to connect ESP8266 12e directly to Arduino Uno (without shields)
I have an ESP8266 12E module and I'm trying to connect it to arduino, without any shields or whatsoever. I've looked everywhere but all I can find is about ESP-01 or with a NodeMCU. I'd like to do the ...
0
votes
0answers
35 views
ESP01 (esp8266) controlling relay problem
I am trying to control relay (SRD-03VDC-SL-C) with ESP-01 module. For this I am using relay and not whole board with relay. ESP's GPIO2 (tried also with GPIO0) output is connected through 1kOhm ...
0
votes
1answer
60 views
ESP8266 - AT Command for Network Requiring Username AND Password
I have been using my ESP8266 module with my Arduino on my university's Wi-Fi network, which only requires a password to log on to.
The university will soon terminate that Wi-Fi network and replace it ...
1
vote
1answer
72 views
WDT & Software RESET in ESP8266 + Arduino IDE
I am working on ESP8266 in Arduino IDE. I want to know how to Software RESET the ESP8266. Any sketch/example would be useful. Moreover, how to initialise WDT in ESP8266.
Kindly help!
0
votes
0answers
30 views
HMC5883L - angle 0 to 90 only - NODEMCU ESP12E
Got this cheap chip and connected to SDL SCA on NodeMCU ESP12E
Using the example sketch:
HMC5883L_Example.pde - Example sketch for integration with an HMC5883L
triple axis magnetomerwe.
The ...
0
votes
1answer
46 views
Problems with Powering Led Project Through Vin Pin
I am working on lighting some WS2812 Leds with a nodemcu form hiLetgo. The project works when it is powered from the usb that is on the board, but as soon as it is powered from the barrel jack, the ...
0
votes
0answers
17 views
How to check 8266 module
I am using Arduino board with 8266 to connect with a WiFi device but how to check whether the device is connected
1
vote
0answers
41 views
ESP8266 only responds to AT and AT+GMR
I purchased a pack of esp8266 (https://www.amazon.com/gp/product/B00PA3UQNI/) and a usb to serial converter (https://www.amazon.com/gp/product/B01FUA2BBU/) from amazon. I hooked them up and attempted ...
2
votes
1answer
97 views
Serving binary file with ESP8266WebServer
I am currently using a Nodemcu ESP8266-12E with the Arduino IDE in order to control my boiler. Everything is working fine, however I haven't figured out yet how to serve binary files, eg. images. (I ...
0
votes
1answer
60 views
Which Protocol to use to control WiFi (ESP8266) enabled Led Light
I am developing a Wifi based Led light (Got Inspired from Philips hue, Lifx). I have little knowledge about web server, clients, Web protocols. I will be using ESP8266 as Controller cum WiFi module.
...
1
vote
2answers
55 views
ESP 01 - reset settings to default values
I set up communication between Arduino UNO and ESP 01 module. ESP replied to AT commands, but sometimes I got result from ESP uncompleted or with wrong characters, so I tried to set AT+IPR=9600, I ...
0
votes
0answers
41 views
Flashing ESP8266 ESP-12-q with arduino
I got an ESP-12Q ESP8255 module and I am trying to upload Arduino firmware on it. But I can't even get any response from the module at all. No LEDs anywhere are on, I don't even know if the thing is ...
0
votes
1answer
95 views
ESP8266 Web Server Crash + Arduino IDE
I am working on HTTP GET Request. I have created ESP wifi as web server. It creates a access point with IP address : 192.168.4.1
When my android app is connected to web server, it sends values every ...
0
votes
1answer
32 views
Arduino UNO and ESP01 cant issue AT command
I would like to connect Arduino UNO and ESP 01 module. I use Arduino IDE and I tried to test comunication via serial monitor, I get "ready" message from ESP 01, but I am not able to issue AT command ...
0
votes
0answers
183 views
sending arduino data to mysql using phpmyadmin and xampp using windows10
I want to send my arduino sensor data to mysql databse using XAMPP and PHPmyadmin. I have been using esp8266 for the wifi connection. But i am unable to send the value. And in actually i have to send ...
0
votes
0answers
68 views
How to Read and Write EEPROM in ESP8266 + ARDUINO IDE
I need to know how can I write the integer value in EEPROM and retain the value on Power ON.?
char *Red = strstr(myTestUrl, "/R");
if (Red)
{
int RedValue = atoi(Red + 2);
analogWrite(...
0
votes
2answers
66 views
rs485 and serial ISP
I made a couple of arduino mini pro and esp8266 pcbs with an rs485 transceiver just to find out that I forgot to think about in-system-programming:
Assuming that I don't need to disable the ...
0
votes
1answer
92 views
Unable to Communicate Between ESP-12E Module and Mobile Through ESP-12E Router
I am newbie in Arduino, I trying to send data from Esp-12E client module to mobile over an IP via ESP router module (I am using Arduino IDE for programming Esp-12E).
For this purpose I successfully ...
0
votes
0answers
39 views
Arduino, MQTT communication , ESP8266
I want to establish mqtt communication using mosca broker.
I am very new to all this stuff, so I need your help. I have saved and uploaded the code in my arduino and when i open my serial monitor it ...
0
votes
1answer
47 views
How do I reset an ESP8266 with an FTDI and no reset button?
How do I reset an ESP8266 with an FTDI and no reset button? I assume that it has something to do with the reset pin on the ESP8266, but I cannot find a step-by-step usage of the pin online.
1
vote
1answer
44 views
Problems returning char array from function, value gets messed up
I use the Base64 library for Arduino (but I don't think the problem is related to the library) and have the following function definition:
char* decodeImage(char inputString[], unsigned int ...
0
votes
1answer
45 views
Posting to EEPROM via HTML - ESP8266 Arduino IDE
For those of you familiar with my somewhat steep EEPROM learning curve...thank you for continuing to share your knowledge. I see how it's supposed to work and it's falling into place.
I've run into ...
0
votes
0answers
22 views
NodeMCU - Star Configuration Broadcasting
I'm trying to have a central NodeMCU device that broadcast data out to multiple NodeMCUs so basically a star configuration. I'm aiming to have each NodeMCU receive the data on their end and display ...
0
votes
1answer
24 views
WiFi thermometers: save different location string as const across many devices
I've built a very simple WiFi thermometer out of an Adafruit ESP8266 HUZZAH breakout board and a TMP36 temperature sensor. I have it reporting the temperature over wifi to my computer which will be ...
0
votes
0answers
96 views
Parsing GET function + ESP8266 + ARDUINO IDE
I am working on a ESP and making it a simple Http web server. I have successfully ON/OFF the led using the browser. I need to use PWM, instead of Switching the led. As of now When I hit http://192.168....
0
votes
1answer
58 views
MPU9250 - Calibration Not Saved with RTIMULib EEPROM Issues
I'm using the MPU9250 and the RTIMULib to perform sensor fusion, however, when I run ArduinoMagCal, and save the calibration, and follow that with running the main ArduinoIMU it claims the calibration ...
