Datasheet

You can do pretty much anything at this prompt, with the AT command set. Try AT+HELP to get a list of all commands, and try out ones like
AT+HWGETDIETEMP (get temperature at the nRF51822 die) and AT+HWRANDOM (generate a random number)
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https://learn.adafruit.com/introducing-the-adafruit-bluefruit-le-uart-
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