Wemos D1 Mini to report sensor values to phone app. (Battery Monitor Project)

Projects General Guidance
1

Hello all

I am trying to get a Wemos D1 Mini to report values sent through WIFI directly to a phone app. Surprising, the Remotexy website did a good job, however this app currently cannot be purchased, and number values can only be displayed graphically (like bar graph or speedo style) while the actual value can't be displayed as far as I can see. So this option has limitations.

What other options are there for a direct connection between the wemos and phone app? Surely this sort of thing has been done before. Please note that using a router or home network/IoT is not my preference, although I am starting to think it is the only way to achieve what I want. The intent is to have a quick way to check the status of my battery while camping off the grid, so volts, amps, state of charge and maybe a few graphs etc

2

Presumably you have installed the Wemos library.

If you look in the Examples folder of the Arduino IDE under ESP8266Wifi you'll find the WifiAccessPoint sketch. That will show you how you can set up the D1 Mini so you connect your phone.

To show your battery status, check in the ESP8266WebServer folder. The HelloServer and AdvancedWebServer sketches are easy to follow. Just use your phone's web browser to view the pages your create.

3

That was excellent advice thankyou.

Another great resource I found was here:

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