As well as almonds and olives we have carob trees here on the farm I have been talking about using them for ages. I googled how to make flour from the pods and found lots of You tube video that included lump hammers and wire clippers. All too scary for me. Not tools I usually use in the kitchen. Knives, yes. Lump hammers , no.
This is what I did.
The drier the pods are the finer the flour. The fine flour is used like cocoa, mine is coarse as I will be using it like ground almonds.