How to use static IP stored in dynamic config.

[bkrajendra]

I need an example of using static IP from dynamic parameters.

Questions:

How to use dynamic parameters in code.?
At what point are the values available to use?
in the case of a static IP address, it will be required at the wifi connection time. How to use dynamic parameter from config form to assign it to WiFiManager->setSTAStaticIPConfig(static_ip); ?

@khoih-prog Please help

[khoih-prog]

It's good that you've spent some time to read the example code and know we can use WiFiManager->setSTAStaticIPConfig(static_ip);

---

At what point are the values available to use?

After the first call to getConfigData() in library code, which happens in begin()

WiFiManager_RTL8720/examples/RTL8720_WiFi/RTL8720_WiFi.ino

Line 113 in 9659ee5

WiFiManager->begin(HOST_NAME);

---

To get the Config Data anytime, before of after begin(), use

WiFiManager_RTL8720/src/WiFiManager_RTL8720.h

Line 699 in 9659ee5

WM_Configuration* getFullConfigData(WM_Configuration *configData)

then Config Data is ready to be used

You really don't need to do this after the following begin()

WiFiManager_RTL8720/examples/RTL8720_WiFi/RTL8720_WiFi.ino

Line 113 in 9659ee5

WiFiManager->begin(HOST_NAME);

---

How to use dynamic parameters in code.?

See example

WiFiManager_RTL8720/examples/RTL8720_WiFi/RTL8720_WiFi.ino

Lines 118 to 153 in 9659ee5

	#if USE_DYNAMIC_PARAMETERS
	void displayCredentials()
	{
	Serial.println(F("\nYour stored Credentials :"));
	for (uint16_t i = 0; i < NUM_MENU_ITEMS; i++)
	{
	Serial.print(myMenuItems[i].displayName);
	Serial.print(F(" = "));
	Serial.println(myMenuItems[i].pdata);
	}
	}
	void displayCredentialsInLoop()
	{
	static bool displayedCredentials = false;
	if (!displayedCredentials)
	{
	for (int i = 0; i < NUM_MENU_ITEMS; i++)
	{
	if (!strlen(myMenuItems[i].pdata))
	{
	break;
	}
	if ( i == (NUM_MENU_ITEMS - 1) )
	{
	displayedCredentials = true;
	displayCredentials();
	}
	}
	}
	}
	#endif

---

I need an example of using static IP from dynamic parameters.

How to use dynamic parameter from config form to assign it to WiFiManager->setSTAStaticIPConfig(static_ip); ?

This is left as an exercise for you, after the above answers.

If not possible, it'll be a serious problem, and you have to post on the Arduino Forum for help. I hope I have time to deal with all the basic knowledge and coding and help every single person.

[bkrajendra]

@khoih-prog thanks for the answer.
This is what I have done, and its working fine. let me know if I am doing overkill for string to IP, or is there any native method to do that.?

void Setup(){
WiFiManager->begin(HOST_NAME);
  String mip = myMenuItems[0].pdata;

  // char item[4] = strtok(mip, "."); // this did not worked

  IPAddress static_IP = str2IP(mip);
  WiFiManager->setSTAStaticIPConfig(static_IP);
  Serial.println("Static IP menu \r\n");
  Serial.println(myMenuItems[0].pdata);

}

IPAddress str2IP(String str) {
  IPAddress ret(getIpBlock(0, str), getIpBlock(1, str), getIpBlock(2, str), getIpBlock(3, str));
  return ret;
}

int getIpBlock(int index, String str) {
  char separator = '.';
  int found = 0;
  int strIndex[] = { 0, -1 };
  int maxIndex = str.length() - 1;

  for (int i = 0; i <= maxIndex && found <= index; i++) {
    if (str.charAt(i) == separator || i == maxIndex) {
      found++;
      strIndex[0] = strIndex[1] + 1;
      strIndex[1] = (i == maxIndex) ? i + 1 : i;
    }
  }
  return found > index ? str.substring(strIndex[0], strIndex[1]).toInt() : 0;
}

I have one more question. Is there any way to save/change the config data (one or multiple values) after the wifi connection? I want to have rest API to do that.

[khoih-prog]

Now, the question has no more relation to this library. I suggest you have to study / research yourself, or post it on other Forums, such as Arduino Forum.

[bkrajendra]

anyways thank you very much for the support.
Just about the last question, it's my mistake I added multiple things together. The question is only related to the library.

Q: How to update DynamiData after the wifi connection success?

I have seen the function FlashStorage_putDynamicData(). I'll play around with this and figure it out.

Thanks again.