im a noob at iot, can u connect to blynk using a different wifi? can it send the microcontroller’s data to the user even when using a different network anywhere in the world?
Yes, of course, this is the beauty of Blynk.
If you’re using the Blynk cloud servers (easiest option if you’re new to this, and still my preferred option) then this is how it works…
The micro controller connects to the local network using Wi-Fi or wired Ethernet, depending on your type of board. It then talks to the Blynk cloud server via the local internet connection. If you’re in Europe then this cloud server is probably located in Frankfurt.
The Blynk app on your phone also talks to the server in Frankfurt, either via the Wi-Fi connection it’s using at the time (which could be the same one as the micro controller, but could be totally different), or via its cellular data connection. It doesn’t matter where in the world you are, provided you have an internet connection. (Okay, that may not be 100% true - countries like North Korea probably don’t allow network traffic to flow to/from the Blynk server, but the fact that you’ve been able to post to this forum means you probably don’t live there).
If your microcontroller is collecting data - say temperature and humidity - and pushing it up to the Blynk cloud server every few seconds then this is happening irrespective of whether your phone is turned on or connected to a network. You obviously need the phone switched on and connected, and the Blynk app open, to see this data.
Pete.
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