I am designing a device in which I want to lock each drawer until it's time to open them. Let's say that there are 4 compartments in the device. Each compartment needs to be programmed to open at a pre-programed time. For example, at T1 time, compartment 1 opens. Then at T1 time, none of the other compartments should be able to open even if pulled by the user. The same should be true for all the other compartments.
My earlier approach included using a solenoidal actuator for this. So, the holding current of the actuator would keep it magnetised and hence latched. And whichever compartment needs to be opened, that actuator is set to low.
However, I am unable to find any solenoidal actuator below 1Amp rating.
I would like to hear if you have any other solutions for this sort of locking mechanism.
Thanks in advance.