Storing data from esp8266 on android phone, without being connected to wifi, other than the one created by esp8266

Projects Networking, Protocols, and Devices
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So i need to:
1.send data from esp8266 to andriod phone app
2.save the data on android phone in a file
3.send the android file back to the esp8266

But i would like to do it by using the esp8266 in "hotspot mode" so that it creates a wifi network that i can connect my phone to. It would be also nice if i could use appinventor to make the android app.

Thanks, Wiktor

2

i don't know much about app side. You can create webserver by hosting AP and can send data from/to the nodemcu to/from mobile. if you want bluetooth you can use esp32 board

3

Have you looked at the Android Store yet?

4

no.

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