Communciate with Other device using Android on same wifi network

[AC Question]

Hi,
Need a help. I have able to made IP messenger to communicate between two android devices on the same WI-FI network using IP address. But the app must be installed in both the devices.
My requirement is to communicate android device to another electrical device on the same wifi network with a IP suppose (192.168.1.32). I am not getting how to communicate with other device. Please if any one can help me out.
Thanks