Arduino Stack Exchange is a question and answer site for developers of open-source hardware and software that is compatible with Arduino. It only takes a minute to sign up.
Sign up to join this community
I have an array of colors for my tft screen:
const uint16_t colorTheme [] PROGMEM = {BLACK, WHITE, NAVY, CYAN, RED, GREEN, VERDEAQ, PINK, ORANGE, PURPLE, GRAY, YELLOW};
When I try to use colorTheme [EEPROM.read (2500)] I am returned with a value of any garbage, or a value of 0, and I checked it in read_eeprom and the value of EEPROM.read (2500) is equal to 4, and 4 in mine vector is cyan color, not black or 0 number, why does this go so wrong?
Your array is in PROGMEM, but you are accessing it as if it were in RAM.
You must use pgm_read_word() to access the data in your array.
pgm_read_word(&(colorTheme[EEPROM.read(x)]))
BTW - what Arduino board has more than 2kB of EEPROM?
