Mouse droppings are about 1.5 mm in diameter and 3 to 5 mm long.
possibly a rat.
Mouse dropping are hard after they have dried.
Use a disinfectant solution such as bleach and water, ammonia and water, white vinegar and water, in a spray bottle on the area. If carpets are affected, use the best cleaning solution you can find...
A mouse-turd :)
This is likely from a lizard.