I'm looking for a device that can detect (and report to my raspberry pi) the presence of a signal from my Switcheroo:
Switcheroo - Sync Lights with No App, WiFi, Bluetooth, or Remote Control | Change Which Outlets Turn On/Off with Your Existing Light Switch | Smart Outlet Solution for Multiple Plug Switches (2-Pack) https://www.amazon.com/dp/B07BX6QF7Q/ref=cm_sw_r_cp_api_glt_i_PQZ4ATQ7S1BK81EQC2RS
I suspect that it transmits on the 915Mhz band. (The device designer stated in a Q&A that it operates at 900Mhz, but I assume he was just being imprecise - and I asked to confirm that assumption on the product listing.)
I guess I'm basically looking for a 915Mhz hub that can detect the signal and report its presence/absence to my Pi, so I can know when it turns on or off.
Incidentally, I'm really looking for an answer to this specific question and not some underlying question, because I like to tinker. I'm not looking for other ways to achieve something else.