Read Single Value from an array

Question

I'm using SD110, and in my application I have an array of 64, 32-bit integers. 
 Typically, the client will only need to read 1 of the 64 values, or write to one of the 64 values. Rather than passing the entire large block of data, when only 4 bytes are needed at any time, I've created a characteristic that has 5 bytes - the first byte is for the index in the array, the remaining 4 bytes are the value. This works well for writing - I write the index and value. The thing I can't figure out is how to read a value out of the array at a given index. 
 Is there a way to do this?

John · Accepted Answer

Probably the easiest way to do this is to write the index to a characteristic, which will generate a write event you can handle. The write event can then send the value at that index back as a notification either on the same characteristic or another characteristic.