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fixing printChar() so that shift functions can move characters printed by printChar #26

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fixing printChar() so that shift functions can move characters printed by printChar #26

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b294a1c
added line to printChar() to allow shift functions to work on charact…
cchuneke Jun 30, 2025
3ddd9e1
Added a for loop to clear() to wipe the displayContent array
cchuneke Jul 1, 2025
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9 changes: 9 additions & 0 deletions src/SparkFun_Alphanumeric_Display.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,12 @@ bool HT16K33::clear()
// Clear the displayRAM array
for (uint8_t i = 0; i < 16 * numberOfDisplays; i++)
displayRAM[i] = 0;

// Clear the displayContent array
for (uint8_t i = 0; i < 16; i++)
{
displayContent[i] = "";
}

digitPosition = 0;

Expand Down Expand Up @@ -681,6 +687,9 @@ void HT16K33::printChar(uint8_t displayChar, uint8_t digit)
uint16_t segmentsToTurnOn = getSegmentsToTurnOn(characterPosition);

illuminateChar(segmentsToTurnOn, digit);

// Add char to local RAM to enable shiftRight() and shiftLeft()
displayContent[digit] = displayChar;
}

// Update the list to define a new segments display for a particular character
Expand Down