Printing elements of char array from PROGMEM

Question

Given:

const char* PROGMEM names[] = {"Foo","Bar"};
Serial.print(names[0]);

I get garbage output. Is there some function that will print the string from PROGMEM? E.G.:

Serial.print(<function name>(names[0]);

That's not how you use PROGMEM. You need to use the functions pgm_read_***_near — Gerben
– Gerben, Commented Feb 5, 2019 at 16:33
your strings are not in progmem. only the array of pointers to strings is there arduino.cc/reference/en/language/variables/utilities/progmem — Juraj
– Juraj ♦, Commented Feb 5, 2019 at 18:26

dougp · Accepted Answer · 2019-02-07 04:23:04Z

2

Among many others, check out pgmspace.h utilities at AVR-libc

answered Feb 7, 2019 at 4:23

dougp

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Nick Gammon · Accepted Answer · 2023-05-07 04:21:16Z

0

const char PROGMEM b0 = pgm_read_dword(&(names[0]));
Serial.print(b0);

Nick Gammon♦

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answered May 6, 2023 at 22:48

Jorge Royero

1

2 Answers 2