Bad host link in Arduino program using gsm a6 - server

I'm using a6 gsm module with Arduino Mega and I want to send specific data values to the server (https://000webhost.com) and after that to mySQL data base which is in (https://www.clever-cloud.com). First, I tried with apache server on my pc and it was successful attempt. But when I use 000webhost.com I get an error in serial monitor - CME ERROR:58. PHP files are same. This is the code which I'm using:
void send() {
delay(500);
Serial3.println("AT+CIPSHUT\r");
delay(1000);
Serial3.println("AT+CIPMUX=0\r");
delay(500);
Serial3.println("AT+CGATT=1\r");
delay(500);
Serial3.println("AT+CSTT=\"internet\",\"\",\"\"\r");
delay(500);
Serial3.println("AT+CIICR\r");
delay(1000);
Serial3.println("AT+CIFSR\r");
delay(1000);
Serial3.println("AT+CIPSTART=\"TCP\",\"test.000webhostapp.com\", 80\r");
delay(1000);
Serial3.println("AT+CIPSEND\r");
delay(1000);
printSerialData();
Serial3.println("POST http://test.000webhostapp.com/send.php HTTP/1.1");
delay(250);
Serial3.println("Host: test.000webhostapp.com");
delay(250);
Serial3.println("Content-Type: application/x-www-form-urlencoded");
delay(250);
Serial3.println("Content-Length: 9\r\n");
delay(250);
Serial3.println("i=15&p=69");
delay(250);
Serial3.write(0x1A);
// Ctrl Z delay(5000);
Serial3.println("AT+CIPCLOSE");
delay(750);
Serial3.println("AT+CIPSHUT");
delay(750);
printSerialData();
}

did you try your code with curl before?
Can you look at logs in the same time?

Related

STM32 code not working, while loop, delay problems

Currently, I'm facing a weird problem with the STM32. I just generated code with the STM32Cube IDE for the chosen MCU (STM32L031G6). I nearly didn't change anything, except configuring one GPIO as output and trying to let a connected LED blink.
Now the problem:
If I run the code, nothing happens, no blink at all.
Stepping through the code, I can enable the LED once when the WritePin is called. Afterwards, just one step further, the LED is off again, although there is no further WritePin call executed. The LED never gets back on again.
What can be the problem with this code? There is nothing special about it? Did I miss something which is required for generated STM32 code?
For the following code I removed any unused line and comment.
#include "main.h"
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
int main(void) {
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
while(1) {
//HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);
HAL_Delay(1000);
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);
HAL_Delay(1000);
}
}
void SystemClock_Config(void) {
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
RCC_OscInitStruct.MSICalibrationValue = 0;
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
Error_Handler();
}
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) {
Error_Handler();
}
}
static void MX_GPIO_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct = {0};
__HAL_RCC_GPIOA_CLK_ENABLE();
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);
GPIO_InitStruct.Pin = LED_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
}
void Error_Handler(void) {
__disable_irq();
while (1) {}
}
Update 1:
As seen in the comments the HAL_Delay is not working properly. But how to fix it? And why the code does not let the led flicker when the HAL_Delay is removed?
Update 2:
It is also not possible to use the loop the following way, but the led is not turned on in any way.
while (1) {
HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
}
See the following images for the configuration.
Update 3:
When executing the code on the STM32L031G6, the debugger stops pretty soon. Stepping through the code works (sometimes). Here is the debug log when clicking "Run" in the STM32Cube IDE.
SEGGER J-Link GDB Server V7.58 Command Line Version
JLinkARM.dll V7.58 (DLL compiled Nov 4 2021 16:23:13)
Command line: -port 2331 -s -device STM32L031G6 -endian little -speed 4000 -if swd -vd
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: localhost only
Generate logfile: off
Verify download: on
Init regs on start: off
Silent mode: off
Single run mode: on
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: STM32L031G6
Target interface: SWD
Target interface speed: 4000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link V11 compiled Dec 9 2021 14:14:49
Hardware: V11.00
S/N: 261014681
OEM: SEGGER-EDU
Feature(s): FlashBP, GDB
Checking target voltage...
Target voltage: 3.34 V
Listening on TCP/IP port 2331
Connecting to target...
Connected to target
Waiting for GDB connection...Connected to 127.0.0.1
GDB closed TCP/IP connection (Socket 1132)
Connected to 127.0.0.1
Reading all registers
Read 4 bytes # address 0x1FF000FC (Data = 0x89B8D002)
Read 2 bytes # address 0x1FF000FC (Data = 0xD002)
Received monitor command: WriteDP 0x2 0xF0
O.K.
Received monitor command: ReadAP 0x2
O.K.:0xF0000003
Read 4 bytes # address 0x1FF000E4 (Data = 0x05408A28)
Read 2 bytes # address 0x1FF000E4 (Data = 0x8A28)
Read 4 bytes # address 0x1FF000E4 (Data = 0x05408A28)
Read 2 bytes # address 0x1FF000E4 (Data = 0x8A28)
Reading 32 bytes # address 0xF0000FD0
Connected to 127.0.0.1
Reading all registers
Read 4 bytes # address 0x1FF000FC (Data = 0x89B8D002)
Read 2 bytes # address 0x1FF000FC (Data = 0xD002)
Received monitor command: reset
Resetting target
Downloading 192 bytes # address 0x08000000 - Verified OK
Downloading 6072 bytes # address 0x080000C0 - Verified OK
Downloading 28 bytes # address 0x08001878 - Verified OK
Downloading 8 bytes # address 0x08001894 - Verified OK
Downloading 4 bytes # address 0x0800189C - Verified OK
Downloading 4 bytes # address 0x080018A0 - Verified OK
Downloading 12 bytes # address 0x080018A4 - Verified OK
Writing register (PC = 0x 80006d0)
Starting target CPU...
GDB closed TCP/IP connection (Socket 1128)
Debugger requested to halt target...
...Target halted (PC = 0x1FF000E4)
Reading all registers
Read 4 bytes # address 0x1FF000E4 (Data = 0x05408A28)
Read 2 bytes # address 0x1FF000E4 (Data = 0x8A28)
GDB closed TCP/IP connection (Socket 1152)
Restoring target state and closing J-Link connection...
Shutting down...
On the other hand, the same code works on a STM32L031K6 of the nucleo board with the ST link disconnected.
*Update 4:
Since I'm using a custom board, there may be a flaw in the schematics. I don't see any issues with the circuit, but maybe, you see some. There is no crystal since it shouldn't be required regarding the datasheet. There are internal oszillators available.
The TOUCH net is just a circuit which connects GND to the pin if a button is pressed.
This is the circuit of the STM32L031G6U6.
This is the circuit of the LEDs that should be controlled. In the previous code I just try to control the LED with the net label STATUS_LED. Since I got the LED to blink while stepping through the code, the Mosfet circuit should work.
I'm currently very confused why I got so many problems. I tried a second and third PCB of the same circuit, but the problems are the same.
I figured out, that I cannot use any clock configurations although they are offered by the STM32Cube IDE. Using the MSI just doesn't work for some frequencies. The code will stall in the SystemClock_Config setting the oscillator or the clock.
Why the HAL_Delay sometimes doesn't work and sometimes it does?
Why the system doesn't start at all when trying to run the code (even with everything disconnected and just the power supply reconnecting)?
Why stepping through the code does work but running the code does not?
Problem solved. The Altium package I downloaded was for the wrong package of the STM32L031. It ia for the STM32L031G6U6S and not the STM32L031G6U6.

Using both TCP and UDP protocols seem not to work on Ethernet Shield w5100

I'm having a problem using both TCP and UDP in the same sketch. What appears to happen is that if the same socket is reused for UDP after it was in use for TCP, UPD fails to receive data. I was able to reproduce this with the WebServer example. I've added to it a DNS query once in every 10 seconds to query yahoo.com IP address. The DSN queries succeed if I'm not creating any client traffic from the browser. After I query the server over HTTP over TCP, the DSN queries start to fail. DNS queries are implemented in UDP. This is the code that I'm using:
/*
Web Server
A simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* Analog inputs attached to pins A0 through A5 (optional)
created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe
modified 02 Sept 2015
by Arturo Guadalupi
*/
#include <SPI.h>
#include <Ethernet.h>
#include <Dns.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(192, 168, 1, 177);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
unsigned long t0;
void setup() {
// You can use Ethernet.init(pin) to configure the CS pin
//Ethernet.init(10); // Most Arduino shields
//Ethernet.init(5); // MKR ETH shield
//Ethernet.init(0); // Teensy 2.0
//Ethernet.init(20); // Teensy++ 2.0
//Ethernet.init(15); // ESP8266 with Adafruit Featherwing Ethernet
//Ethernet.init(33); // ESP32 with Adafruit Featherwing Ethernet
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.println("Ethernet WebServer Example");
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
// Check for Ethernet hardware present
if (Ethernet.hardwareStatus() == EthernetNoHardware) {
Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :(");
while (true) {
delay(1); // do nothing, no point running without Ethernet hardware
}
}
if (Ethernet.linkStatus() == LinkOFF) {
Serial.println("Ethernet cable is not connected.");
}
// start the server
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
t0 = millis();
}
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
// output the value of each analog input pin
for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("analog input ");
client.print(analogChannel);
client.print(" is ");
client.print(sensorReading);
client.println("<br />");
}
client.println("</html>");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
} else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disconnected");
}
if (millis() - t0 > 10000)
{
DNSClient dns;
dns.begin(IPAddress(8,8,8,8));
IPAddress yahoo;
if (dns.getHostByName("yahoo.com", yahoo) == 1)
{
Serial.print("Yahoo: ");
Serial.print(yahoo[0]);
Serial.print(".");
Serial.print(yahoo[1]);
Serial.print(".");
Serial.print(yahoo[2]);
Serial.print(".");
Serial.println(yahoo[3]);
}
else
{
Serial.println("Failed to query yahoo.com IP address");
}
t0 = millis();
}
}
Is this a known issue? Can someone please help in identifying the problem in my code, or if there is a workaround for this issue? Can it be a hardware issue? I'm using SunFounder boards, not the original Arduino boards.
Thanks a lot,
Boaz,

How I can get to work a foo.local mDNS link between an ESP32 Server and an ESP32 Client?

I am trying to access http:///myServerName.local/ link through a client running on ESP32 after I establish the mDNS on the server running on another ESP32.
I tried implementing an HTTP request with the previous link, but it won't seem to work. I also tried just to access the link from my browser but that won't work either.
Client Code:
HTTPClient http;
Serial.print("[HTTP] begin... \n");
http.begin("http://myServerName.local/"); //HTTP
Serial.print("[HTTP GET... \n");
int httpCode = http.GET();
...
Server Code:
void advertiseServices(const char* myName)
{
if(MDNS.begin(myName))
{
Serial.println(F("mDNS responder started."));
Serial.print(F("I am: "));
Serial.println(myName);
//Add service to MDNS-SD
MDNS.addService("http", "tcp", 80);
}
else
{
while(1)
{
Serial.println(F("Error setting up MDNS responder"));
delay(1000);
}
}
}
void setup(void)
{
//Activarea serviciilor prin care putem lua legatura cu device-urile in functie de numele lor
advertiseServices("myServerName");
...
}
The only thing I got so far was -1 for httpCode and nothing else.

ESP8266: How to send TCP messages using AT+CIPSEND command

I am experimenting with Arduino and ESP8266 module, and now I am trying to send some sensor data to a TCP server. For this purposes I am using AT+CIPSTART command (to establish a TCP connection) and AT+CIPSEND to send the data.
If I am testing it using Serial Monitor, it works fine. After entering CIPSEND command I can write some text in a terminal and this message/text will be sent to the TCP server.
When I am trying to make it inside Arduino sketch, then it sends an empty message. The connection works, but I do not see any data.
How can I send a message text (msg) with my TCP packet?
Here is a code snippet
// ESP8266 Client
String cmd = "AT+CIPSTART=\"TCP\",\"";// Setup TCP connection
cmd += IP;
cmd += "\",3103";
sendDebug(cmd);
delay(2000);
if( Serial.find( "Error" ) )
{
debug.print( "RECEIVED: Error\nExit1" );
return;
}
String msg = "test";
Serial.print( "AT+CIPSEND=" );
Serial.println( msg.length() );
if(Serial.find( ">" ) )
{
debug.print(">");
debug.print(msg);
Serial.print(msg);
}
else
{
sendDebug( "AT+CIPCLOSE" );//close TCP connection
}
if( Serial.find("OK") )
{
debug.println( "RECEIVED: OK" );
}
else
{
debug.println( "RECEIVED: Error\nExit2" );
}
}
First of all, Select how much character or byte is needed to transmit. It is better to use softwareSerial library to connect with ESP8266 and send AT commands.
Suppose yow want to send 5 bytes.Type the following AT commands and must give a delay more than 100 millisecond before sending data. Here "\r" is carriage return and "\n" is new line. After including this, ESP8266 can understand you have ended the command.
esp.print("AT+CIPSEND=5\r\n");
delay(1000);
esp.print("Hello");
Your code is not working because you are using unvarnished transmission mode. So to complete a packet you need to transmit 2048 bytes which you are not writing.

connect and send on the socket succeeds, even if WIFI not enabled and server is only reacheable in the wireless network - Windows Mobile 6.5 - C/C++

I wrote a small C/C++ Windows Mobile 6.5 client-application that is connecting to a server and sends some data to this server. The server is in my internal wireless network and is not reacheable outside.
The weird behaviour I'm having:
1) Even if the WIFI is not started on my mobile device, the connect() from the client-application returns success (!= SOCKET_ERROR), which is not the case b/c the server is reacheable only in the wireless network.
2) If the WIFI is not started on my mobile device, if there is a Sleep(1000) between the connect() and the send(), the send() fails with WSAECONNRESET, BUT if there is no Sleep() between the connect() and send() the send() succeeds! (only when doing the read() I finally get the WSAECONNRESET error).
Can somebody pls point me some tips why do I have this behaviour. It's pretty scary that without actually being able to reach the server I still get success for the connect() and for the send() :(
As requested, here is a sample code:
#include <windows.h>
#include <Winsock2.h>
#include "dbgview.h"
# define FxMemZero(buf,len) RtlZeroMemory ((VOID*)(buf),(SIZE_T)(len))
# define FxMemCopy(dst,src,len) RtlCopyMemory ((VOID*)(dst),(CONST VOID*)(src),(SIZE_T)(len))
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
SOCKET proxy_connection;
WSADATA wsadata;
if( 0 != WSAStartup (MAKEWORD(1, 1), &wsadata))
return -1;
proxy_connection = WSASocket (AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, 0);
if(proxy_connection == INVALID_SOCKET) {
// error creating the socket
DbgViewTraceError((L"main", L"error creating socket."));
return -1;
}
// try to connect
UINT proxy_ip_ = 0x00000000;
CHAR* proxy_0_ = "192.168.1.105";
UINT proxy_port = 3100;
// get the proxy ip
{
struct hostent *he_;
if((he_ = gethostbyname(proxy_0_)) == NULL) {
DbgViewTraceWarning((L"main", L"error %d resolving hostname %hs", WSAGetLastError(), proxy_0_));
return -1;
}
FxMemCopy((PBYTE)&proxy_ip_, (PBYTE)he_->h_addr, he_->h_length);
}
// prepare the connection data
sockaddr_in saddr_;
FxMemZero(&saddr_,sizeof(sockaddr_in));
saddr_.sin_family = AF_INET;
saddr_.sin_addr.S_un.S_addr = proxy_ip_;// address
saddr_.sin_port = htons((USHORT)proxy_port);
// do the conection
if(SOCKET_ERROR == connect(proxy_connection, (SOCKADDR*) &saddr_, sizeof(saddr_))) {
// error connecting to the proxy
DbgViewTraceWarning(( L"main", L"error %d connecting to %hs:%d", WSAGetLastError(), proxy_0_, proxy_port));
closesocket(proxy_connection);
proxy_connection = INVALID_SOCKET;
return -1;
}
DbgViewTraceInfo(( L"main", L"SUCCESS. connected to %hs:%d.", proxy_0_, proxy_port));
CHAR* buffer_ = "Momo";
UINT count_ = strlen(buffer_);
DWORD total_ = 0;
DWORD sent_ = 0;
while(total_ < count_) {
// ISSUE: IF the WIFI is not started on the mobile, the connect returns success AND the send() returns success, even though with putty
// on the mobile, a telnet on 192.168.1.105:3100 will fail with: "Network error: Connection reset by peer"
// IF I add a long-enough Sleep() between the connect() and the send(), the send() will fail with: WSAECONNRESET
//Sleep(5000);
if(SOCKET_ERROR == (sent_ = send(proxy_connection, (const char*)buffer_ + total_, count_ - total_, 0))) {
// error sending data to the socket
DbgViewTraceError((L"main", L"error %d sending data to proxy", WSAGetLastError()));
return -1;
}
total_ += sent_;
}
DbgViewTraceInfo((L"main", L"send() SUCCESS"));
return 0;
}
The results are:
1) Without Sleep():
main [INFO ] SUCCESS. connected to 192.168.1.105:3100.
main [INFO ] send() SUCCESS
2) With Sleep():
main [INFO ] SUCCESS. connected to 192.168.1.105:3100.
main [ERROR ] error 10054 sending data to proxy
So the questions are:
1) Why the connect() succeeds? How can I be sure that there is actually a real connection?
2) Why the send() succeeds?
3) Why with a Sleep() in between connect() and send() the behaviour is different?
The problem seems to be ActiveSync. If ActiveSync is running, I get the behavior described above (connect() and send() report success, even though they are not). If ActiveSync is not running, gethostbyname() fails with:
WSAENETDOWN -> if WIFI is disabled
WSAHOST_NOT_FOUND -> if WIFI is enabled
which is correct!
How can this be? What is ActiveSync doing that is ruining everything? How can I avoid this problem? I mean, I can't be sure that the user is running my application when there is no ActiveSync running, so what can I do to avoid this behavior when ActiveSync is running?
Thx,
MeCoco
Looks like you are at least misusing struct sockaddr_in. Try more modern API for address conversion - Windows has InetPton - and see if that fixes the issues.