Starting with some background of my question:
I am trying to design a pcb for my home automation lighting control, I know there are plenty of tutorials and products out there but there just isn't one that suits my expectation. I need the home lighting control to be able to switch between "Auto" and "Manual" mode, in auto mode the whole system will be controlled by Arduino (hardware interface) + Nodered + HA, and in manual, I just want 12vdc from my light switch wired straight to the coil of the relay.
With my past industrial electrical design experience, I have worked out the whole circuitry, but it requires a bunch of marshaling terminals, selector switches and wiring. So my question for this thread is that, I want to take most the wirings to PCB level:
Is there an ic package which that contains a bunch of spst switches integrated (8 or 16). No amplifying is required, just act like a simple spst toggle switch. With each switch it should be capable of handle load up to 120mA (max possible coil load) 12vdc, and the switch also need to be able to pass through volt-free signals (switching arduino inputs). Only one single switching signal is required, ie. a signal to switch ALL (8 or 16) spst switches ON / OFF, because they are all either in Auto or Manual mode. It would be nice to have common control signal 12vdc but not essential, perhaps there is a workaround to convert my external panel mount switch signal to logic level in the ic design.
I am trying to design a pcb for my home automation lighting control, I know there are plenty of tutorials and products out there but there just isn't one that suits my expectation. I need the home lighting control to be able to switch between "Auto" and "Manual" mode, in auto mode the whole system will be controlled by Arduino (hardware interface) + Nodered + HA, and in manual, I just want 12vdc from my light switch wired straight to the coil of the relay.
With my past industrial electrical design experience, I have worked out the whole circuitry, but it requires a bunch of marshaling terminals, selector switches and wiring. So my question for this thread is that, I want to take most the wirings to PCB level:
Is there an ic package which that contains a bunch of spst switches integrated (8 or 16). No amplifying is required, just act like a simple spst toggle switch. With each switch it should be capable of handle load up to 120mA (max possible coil load) 12vdc, and the switch also need to be able to pass through volt-free signals (switching arduino inputs). Only one single switching signal is required, ie. a signal to switch ALL (8 or 16) spst switches ON / OFF, because they are all either in Auto or Manual mode. It would be nice to have common control signal 12vdc but not essential, perhaps there is a workaround to convert my external panel mount switch signal to logic level in the ic design.