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Description
Thank you for opening an issue on an Adafruit Arduino library repository.  To
improve the speed of resolution please review the following guidelines and
common troubleshooting steps below before creating the issue:
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Do not use GitHub issues for troubleshooting projects and issues. Instead use 
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 something isn't working as expected. In many cases the problem is a common issue
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 the problem.
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If you're sure this issue is a defect in the code and checked the steps above
please fill in the following fields to provide enough troubleshooting information.
You may delete the guideline and text above to just leave the following details:
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Arduino board: Uno 
- 
Arduino IDE version (found in Arduino -> About Arduino menu): 1.8.13 
- 
List the steps to reproduce the problem below (if possible attach a sketch or 
 copy the sketch code in too): LIST REPRO STEPS BELOW
Code (modifed from 'sevenseg' example):
#include <Wire.h> // Enable this line if using Arduino Uno, Mega, etc.
#include <Adafruit_GFX.h>
#include "Adafruit_LEDBackpack.h"
Adafruit_7segment matrix = Adafruit_7segment();
void setup() {
#ifndef AVR_ATtiny85
Serial.begin(9600);
Serial.println("7 Segment Backpack Test");
#endif
matrix.begin(0x70);
}
void loop() {
matrix.writeDigitRaw(2, 0x02);
matrix.writeDisplay();
delay(1000);
matrix.writeDigitRaw(2, 0x06);
matrix.writeDisplay();
delay(1000);
matrix.writeDigitRaw(2, 0x0e);
matrix.writeDisplay();
delay(1000);
matrix.writeDigitRaw(2, 0x1e);
matrix.writeDisplay();
delay(1000);
matrix.drawColon(false);
}
drawColon(false); not only turns off the colon, it turns off all the other dots as well
I looked at the library and believe the correct code is:
void Adafruit_7segment::drawColon(bool state) {
if (state)
displaybuffer[2] = displaybuffer[2] | 0x2;
else
displaybuffer[2] = displaybuffer[2] & 0xfd;
}