How to communicate to a Arduino behind firewall or router from a website

Question

I have developed a arduino application which listens to http connections but I need help in controlling the device through internet like how Blynk does. I have bought a website domain hosting which supports php webpages and python app. If anybosy could point me to a right direction to develop a script which can be hosted to the internet it will be helpful.

P.S : I don't want to use the services like thingspeak or Blynk but i want to develop one like them. Please guide me.

BigG · Answer

This is my suggestion.

You could have saved yourself some money by using Google's Firebase service instead of paying for web hosting, as there is a free tier option. You can also use something like Cloudflare to handle the routing between Firebase and your domain name AND provides you with https options. All this is also free to use when using free tier option. Then there is an Arduino Firebase library on github (just search for it). Then use this library to control your Arduino. With this option there is no need to hassle with all the firewall issues (i.e. NAT, port forwarding etc.) and developing an unsecure Arduino web-server.

Then, if you still want to use your web hosting and php (or python), there are php libraries (similarly for python) that can link to Firebase. With this configuration, Firebase is acting as your secure bridge between your website and your Arduino.

There are a couple of alternatives to Firebase, which would be:

Pubnub.

and Nabto.

All these options offer 2 way communication.

How to communicate to a Arduino behind firewall or router from a website

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