Howdy folks, I'm new here so consider this my introduction and first question all rolled into one :) I look forward to being a part of your community.

I'm wanting to use an old Android phone as a security camera at my home and would like some suggestions on how best to do this.

I've tried using an app called Perch which is pretty much perfect for my needs, except that it chews through my internet cap and slows everything on the wireless network down. Therefore, I'd like to set up a similar system using the phone but have it record a loop on the phone itself. I should be able to remotely trigger the phone to stream to a remote device such as my phone or laptop if motion is detected or I manually trigger the stream.

I've looked at a bunch of apps and all the ones I could find would use a heap of data as they stream continuously to a remote server. This is what I am trying to avoid. Have also considered setting the phone to stream over it's own dedicated wireless network to a network server at my home.

Got any ideas? Is there an app for this that I'm missing? Oh, the phone is an old Samsung Galaxy s4.

TL;DNR - Suggestions for converting an Android phone to a security camera that won't hogg all my data and bandwidth.