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# setDisplayDigit Reference (TM1638/TM1640) #
Set a single display to a digit.
```
void setDisplayDigit(byte digit, byte pos, boolean dot, const byte numberFont[]);
```
| Argument | Detail | Default | Since |
|:---------|:-------|:--------|:------|
| digit| The digit to set | _required_ | |
| pos| The 7-segment display to set. 0 for the leftmost, 7 for the rightmost | _required_ | |
| dot | The dot status for the display | _required_ | |
| numberFont | The font (segment data) to use for numbers, defaulting to the built-in font. | NUMBER\_FONT, the built-in number font | v1.5.0 |
# Example #
Set the leftmost display to a "6.":
```
module1.setDisplayDigit(6, 0, true);
```