This pack will make Redstone easier to understand; explanation is below!
Hoppers show their direction with red arrow that turn on to see when they are locked.
Observer show their direction with red arrow that turn on to see when they are activated
sticky piston look mossy so they can be identified on all side
Dispenser & dropper
dropper have a chest on them
dispenser have a bow
chest: a dropper can put item in chest when activated
bow: bow are use to make dispenser
Minecart & rail
You can now see when a rail is activated, even on a minecart