I am trying to aggregate/resample values in a high spatial resolution raster (raster 1) to another lower resolution raster (raster 2).

Raster 1 contains binary yes/no values. I wish to sum these when they intersect low resolution cells of raster 2.

I have tried the ArcMap Aggregate tool but you must specify the number of times to enlarge the input raster cell, rather than specifying the output cell size. The ArcMap resample tool does not offer a sum aggregation technique. I've considered converting the raster to points but this won't represent the full spatial extent of each cell.

What other ways could I achieve this?