Saving data when power turned off
I am building radio repeater equipment based on the Basic Stamp 2pe.
The stamp enables only certain clients to access the repeater depending on the CTCSS or sub-audible tones that are on a list which resides on the stamp and can be modified remotely via DTMF signaling.
Therefore the list can be modified remotely but once the power is removed from the stamp, the exceptions to the modified list are erased.
I need to know of a method to export the data to a PROM or some such thing.
I would appreciate any info regarding such matters.
Thank-you for your time....