turn on arduino from a web page or an android application

I am making an animal tracker, everything works perfectly but the autonomy is very poor and I am using a 1200 mah lipo battery, I would like to know if you know or is there a way to only turn on the sim800l module and the neo6m with a button on the web page or the application and thus avoid excessive consumption and have a better autonomy

In order for you to do what you want the Arduino itself will, of course, need to be running even if the sim800 and GPS are turned off, which you could do in software on the Arduino. Of course, if you are relying on the sim800 to receive a signal to control the Arduino then that too will need to be turned on at the time

Which Arduino board are you using ?
The fact that you are using battery power implies to me that mains power and hence a USB or WiFi connection is not available, as does the fact that you are making an animal tracker

I assume that you want to be able to send a request to the tracker asking where it is and have it reply, perhaps by text, using the sim800

More details please

what I did was a web page and the user presses a button requesting the last data sent from the neo 6m from the database and captures it with an indicator on the map. but as indicated this lasts about 8 hours and dies. and it would not help me to be able to put the tracker on the animal since my idea is to put it on. and when the animal gets lost just enter the website and track it.

An idea of sorts.

Using something like MQTT to serve as a message Broker to the animal tracker would allow for long sleep times of the device attached to the animal. Long sleep times would translate into longer battery life.

The device on the animal could sleep for 30 seconds, wake, send its position to the MQTT Broker, receive any message from the Broker, process those messages, and go back to sleep for 30 seconds.

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