Softwareandroidopen-sourcecameraprivacy
CamMonitor Turns an Old Android Phone Into a Camera That Sleeps When Nobody Watches
The free Android app pairs two phones for live viewing and switches the camera off after a minute without viewers, deliberately leaving out continuous recording.
CamMonitor gives an old phone another job without asking it to record an empty room all day. Its developer left recording out, so the repurposed hardware can stop doing camera work when nobody is looking, instead of spending its second life permanently encoding video.
Its README calls the design an “on-demand live monitor.” Pair two Android 9-or-newer devices by scanning a QR code. One becomes the camera; the other watches. When nobody is watching for a minute, the camera hardware shuts down.
The developer’s account of making it says disappointing free-tier video in existing apps prompted the project. The author also says, “I haven’t scrutinized a single line of source code.” AI built it, followed by roughly 20 hours of testing and refinement, according to that account.
The release history includes several rounds of security review and a connecting-progress fix. Those are the developer’s reports; they leave the independent security assessment open.
A spare-phone monitor could make more sense when software gives the hardware idle time. The next thing to watch is whether that narrow design survives requests to add the always-on features its author deliberately left out.