I have been using ZWave motion sensors that have USB input so no battery required, for buttons I have replaced a lot of wall switches with Tasmota switches that

I have been using ZWave motion sensors that have USB input so no battery required, for buttons I have replaced a lot of wall switches with Tasmota switches that are programmed for single/double/hold click actions on multiple buttons. This can be great on multi gang switches where I have one button control the relays in all three switches, leaving two buttons open.