)rawliteral";

NVR[0] - NVR[7]

Non-volatile memory. Unlike the STR[x]$ command, it does not damage the flash memory.
n: number of stored variables (0-7)
No RTC: stores a total of 256-(n+1) characters, forgets when power is lost, but not on reset.
DS1302: stores a total of 31-(n+1) characters, does not forget when power is lost thanks to the battery on the RTC module.
DS1307: stores a total of 56-(n+1) characters, does not forget when power is lost thanks to the battery on the RTC module.

STR[0]=important
NVR[0]=Stored Variable
NVR[0]=STR[0]
Stores the variable in non-volatile memory.

NVR[0]@
Sends the stored variable to STDOUT.