Questions tagged [http]
Hypertext Transfer Protocol (HTTP) is an application level network protocol that is used for the transfer of content on the World Wide Web.
137
questions
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31 views
Arduino uno wifi rev2 get status code from server data
I'm having trouble figuring out how I can extract data from my server call.
I am trying to check whether the code that was entered in a boxlock matches the code stored in our database. If the code ...
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0answers
17 views
Arduino uno wifi rev2 get json data from api
I'm not so familiar with Arduino UNO wifi rev2. I bought it for a project that I am working on. In general, I have a box that you can open with a code. The Arduino should make a call to the API and ...
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0answers
49 views
ESP32 CAM sending a file via POST method
I'm using HTTPClient.h for sending the image file that taken by ESP32-cam, but it sends just headers.
the important part of code :
File fsUploadFile2 = SPIFFS.open("/picture.jgp", "r");
...
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1answer
24 views
Sim900a AT+HTTPREAD does not get fully answer
changed the firmware on SIM900B
try to send get request http://dummy.restapiexample.com/api/v1/employee/1
AT+HTTPACTION=0returned +HTTPACTION:0,200,98
but, when I try to read (AT+HTTPREAD or AT+...
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0answers
17 views
SIM900 can't attach GPRS
I have a SIMCom SIM900 GPRS Shield that works with an Arduino UNO R3. I am finding problems when I try to perform an HTTP POST request. I started guessing it was a problem with the GPRS because the ...
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56 views
How to send JSON on a http POST request using an ESP8266?
I'm working on a project aimed on sending alerts via SMS. I signed up for a SMS service that works via HTTP requests (REST standard). I need, then, to send data as JSON, so that their server processes ...
-1
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1answer
49 views
How do I send Sensor Data from one Arduino to another Arduino that is a Webserver to post it?
I have been looking for over 2 hours now and just cant get it figured out. Im very confused as to how to do this. The solution I thought I found was to use HTTP POST. But I just cant get it to work. ...
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0answers
59 views
Arduino Uno + Sim808 GPS dont work with GSM
I am trying to get GPS data and pass it through GSM (Http Get Request). The GPS codes part works fine alone, also HTTPRequest part lonely. But when i use them together , the module don't get GPS data ...
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1answer
33 views
Http request change delay
i'm noob in coding i try to make some led blink ( with succes ) and now i would like to add http request to change delay.
i have no error compiling the code but it dont work any idea ?
Thanks
...
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1answer
51 views
Why doesn't data return when I use Sim808 http request
Why is it that when i use this code for http request on DFRobot_sim808 , I get 'fetch over' message, that means that no data is being returned?
char strings:
char http_cmd[] = " HTTP/1.0\r\n"
...
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0answers
28 views
Problem in fetching http get request after put float number
I have this codes that works correctly!
#include <DFRobot_sim808.h>
#include <SoftwareSerial.h>
#define PIN_TX 7
#define PIN_RX 8
SoftwareSerial mySerial(PIN_TX,PIN_RX);
...
0
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1answer
47 views
Sim808 module HTTP Bad request
I have an Arduino UNO and sim808 EVB-V3.02.4.
I want to send a GET request to my url but I always receive 400 Http bad request error.
#include <DFRobot_sim808.h>
#include <SoftwareSerial.h&...
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0answers
44 views
Arduino Mega failing to connect to XAMPP database/php server to send HTTP requests
I have developed an application with a SunFounder Mega2560 with a W5100 Ethernet shield that acts as a server and successfully parses TCP message packets from a client sending in updates. I am now ...
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0answers
61 views
Send ECG data using buffer in real time to the server without using delay
I am trying to make a ECG monitoring system using Arduino, GSM and ECG sensor which data should be sent to the private server in real time. Those data are then collected via Matlab on the remote ...
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3answers
76 views
SIM800L HTTP request is not reliable
I have a question regarding SIM800L and HTTP GET request. I'm using this https://exploreembedded.com/wiki/Setting_up_GPRS_with_SIM800L simple code to communicate with SIM800l with AT commands. To ...
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0answers
87 views
Parsing the data from an HTTP POST request on a ESP8266 / wemos
I'm sending an HTTP Post request on my Android App to my Wemos D1 mini pro and want to parse the incoming data (which is a json). My current code just prints out the whole POST request and I need to ...
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0answers
96 views
Send HTTP request from Arduino UNO+ESP8266
I am trying to send an HTTP request from from an Arduino UNO through an ESP-01 connected by Serial.
Communication with the ESP and connection to the AP work fine. But when i try to send an HTTP ...
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0answers
30 views
HTTP request is not being executed in Arduino script for sending sensor data to Thingspeak cloud
I am trying to send the data from DHT sensor (temperature and humidity on 2 channels of Thingspeak cloud server) and firstly display them on Thingspeak cloud. Afterwards I will need to get those data ...
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1answer
137 views
Arduino HTTP Request Fails Slow Cellular Connection
Setup:
Arduino Mega 2560 w/ Wiznet W5500 Ethernet Sheild
Using TP-Link TL-MR6400 LTE router to connect to internet over cellular connection in Uganda.
Using an HTTP Post with the following,
...
0
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0answers
22 views
POST DATA SERVER ARDUINO FUZZY LOGIC [duplicate]
Can somebody help me , when i run this code separately , no problem was found , but when i fuse it together , only fuzzy work and the data can't be sent to my server, sorry for my bad english
i ...
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1answer
47 views
Is there a simple HTTP(S) library that doesn't rely on WiFi?
I'm trying to implement a Mobile Network (only) for the ESP32 using Arduino IDE. So to be able to connect to website up/download files etc. I need to be able to handle various HTTP PUT/GET/POST ...
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0answers
72 views
Mkr1010 disconnects and reconnects normally until it reaches a point where it never reconnects again
The board does reconnect from time to time, but there are times where it just disconnects and never reconnects again and I can't replicate the error because while I run it with Serial open and turn ON ...
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1answer
43 views
Can we call GPRS HTTP request asynchronously in Arduino?
Usually GPRS modules (SIM800,900, A6, etc) that used with arduino are called in synchronous way in HTTP (GET/POST) request. It takes more than 10 seconds in most times and this makes the system very ...
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0answers
204 views
how can i send get and post request from esp01 using arduino uno
I am using an esp8266 01 module with the Arduino Uno to establish a communication between the Arduino and my web site. I actually don't know how to send Rest HTTP requests from the Arduino to get data ...
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1answer
105 views
PUT request: PHP code to Arduino HTTPClient
I'm uploading a file to Azure blob storage using REST API request. The file uploaded successfully using PHP curl request. But when I transfer the code into ESP32 HTTP client I'm getting an ...
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0answers
31 views
Error with AT+CIPSEND in ES8266 with arduino
I'm making simple web-server on esp8266 module connected to Arduino. And when +IPD,0,GET... I'm sending AT+CIPSEND=0,16. Then I write HELLOMYDEARFRIDE.
It says : send 16 bytes recived. OK. But in ...
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1answer
157 views
Is it possible to do an OTA update using a GitHub link
I need to be able to download software updates through the internet without having my MKR1000 plugged in. Either that or have new code being pushed from my server (C++) to my MKR1000, and then ...
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0answers
64 views
ESP8266 webserver does not return latest HTTP response
I tried getting a HTTP response from an ESP8266 which is in HTTP server mode, I am getting a response but not the latest one, response is always one command previous to that of my request to the ESP.
...
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0answers
76 views
HTTP and HTTPS server at the same time
I'm trying to set up a HTTP and HTTPS server at the same time on an ESP8266 NodeMCU V3. The compiler however doesn't accept any other name than client otherwise no new clients will be catched. But ...
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1answer
64 views
ESP8266 official library post request returns 400
Every time I try the post request I get a 400 error but the JSON and URL are identical to those that I used on an online API tester and it worked every time there. I am running this program in the ...
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0answers
88 views
ESP8266 reboots instead of completing HTTPUpdateServer update
I should first note that I have made some minor changes to the base code that is used by that library, instead using it as a reference.
Basically, turning off unwanted actions during the update and ...
0
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1answer
180 views
creating HTTP persistent connection, to create 'smooth' data over GSM sending
Project goals
Send data over GSM to firebase
Fast sampling - need to send 16 bytes every half second to firebase
Send data using GET or POST to server with PHP script, that redirect data to firebase
...
2
votes
0answers
158 views
Cannot POST to server. HTTP code -1. NodeMCU
I am trying to make a POST request with NodeMCU, but I get a HTTP status code -1.
Code:
#include <ESP8266HTTPClient.h>
#include <ESP8266WiFi.h>
#ifndef STASSID
#define STASSID "Wifi"
#...
0
votes
1answer
1k views
How to compose an HTTP GET request URL with key/value parameters
I am experimenting with some code running on an ESP8266 board to retrieve data using a web API. I would like to store the host address and key/value parameters (API key etc.) of the GET request as ...
1
vote
1answer
35 views
HTTP myphp request error RFID
This program is a program which readings of rfid are saved to myphp database. I have a problem when running the code The wifi is connected but when the code doesn't save im assuming that the problem ...
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0answers
99 views
ESP8266 http.get() issue due to wifi authentication failure
Facing a weird issue while reading data from esp8266.
I am trying to read dynamic data from a demo text file on test server on same network in deep sleep mode.
Case1: Joining new network
I am using ...
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0answers
33 views
Arduino - Communication with the device
What is the best way for communication with device and webserver, for example I have Arduino device (connected to Wifi) with LED strip and I want to controle it from Website?
Is it good way to make ...
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0answers
185 views
RS256 JWT with Arduino
I am working on a project where I am implementing JSON web tokens to validate devices on a server. I have been unable to find many resources related to RS256 JWT with Arduino or similar devices.
...
0
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1answer
356 views
ESP8266 HTTPS post body request with WifiClientSecure
Is there a way to post HTTPS body request in Arduino esp8266.
I am able to HTTPS parameter request with WifiClientSecure library,but is not safe compared to Request Body send in POST.
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0answers
533 views
Arduino HTTP post image to external server
I'm trying to send an image from SPIFFS to my external server. When pictures are taken, they are saved into "/pics/" directory within SPIFFS. Ultimately, I'd like to post all the images saved onto "/...
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0answers
52 views
Setting up WiFi on NodeMCU with wrong password drops ESP8266WebServer connection [duplicate]
I am trying to build a simple demo with NodeMCU module:
NodeMCU opens AP and sets up web server
Client connects to this AP, sends payload to web server to setup WiFI on the module and receives ...
0
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0answers
296 views
ThingSpeak writing multi fields returns HTTP error code with -301 or -302
I am using arduino and ethernet shield with ThingSpeak library to write multi fields. this sample code from docs. it is working good with 4 fields but if I want to write 8 fields in a same time such ...
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2answers
1k views
Parse a large json response with ESP8266
I'm doing a project where my Arduino uses an external ESP8266 wifi module (with AT firmware) to send http requests and receive server response.
I'm trying to get an NBA scoreboard, and here's what my ...
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0answers
71 views
Arduino ESP8266 ESP-01S GET command
Looking for some help on this please. It is a little long winded, but the point of it is I cannot retrieve a string response via my ESP8266 ESP-01S.
I connect my ESP to my Ardiuno using ...
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vote
1answer
44 views
Connecting NodeMCU through internet [closed]
I have a NodeMCU and a website (free website domain provided by http://www.hpage.com) and I have to send and receive some data (suppose a 8bit number) from the website to the NodeMCU via internet. The ...
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0answers
26 views
Not able to receive string from database
A few days ago I posted a thread as I was not being able to send data to my database online. It worked when I changed the GPS module. Now I am trying to retrieve data from the same Server and i'm not ...
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0answers
355 views
ESP8266 Server does not serve CSS file
It is the first time I try do this. I configured HTML file and it was served.
I want to give style to my HTML form with internal or external CSS, but I can't. However, I used different tutorials I ...
0
votes
2answers
209 views
Arduino SIM5320e HTTP GET request to 000webhost.com
Im having trouble getting a successful HTTP GET request to a domain under 000webhost.com
I am trying to do a GET request which sends data to a php file on my domain and save it to MySQL database. I ...
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0answers
429 views
HTTP PUT method on NodeMCU/ESP8266
I've been trying to send a put request from my esp8266 for a while not but I can't figure out why it doesn't work and there are barely any posts about put requests online
I keep getting errors around ...
0
votes
1answer
270 views
How to handle concurrent HTTP request when using interrupt
I'm trying to make a door sensor with a reed switch. Each time the there is a change, the ESP8266 sends an HTTP request to web service.
Unfortunately, the ESP8266 serial monitor dumps a huge stack ...
