Child Monitor app
Child Monitor is Connectivity tool that is open source under the GPL-3.0-only license.An Open Source Child Monitor for Android
Child Monitor allows two Android devices to act as a baby monitor. The first device, left in the room with the baby, will advertise itself on the network and stream audio to a connected client. The second device, with the parent, will connect to the monitoring device and receive an audio stream.
The project is a fork of Protect Baby Monitor which is declared as "on hiatus" by its developer.
Child Monitor works on Android 5.0 (Lollipop) and newer, i.e. Android SDK 21.
The current version of Child Monitor is rudimentary at best. It is capable of successfully advertising itself on the network, allows clients to connect, and streams audio.