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added setContrast method for the GNC255 oled device (recreated PR) #10

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added setContrast method for the GNC255 oled device (recreated PR) #10

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10 changes: 9 additions & 1 deletion GNC255/GNC255.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -110,6 +110,9 @@ void GNC255::set(int16_t messageID, const char *data)
case 5: // set COM/NAV mode
setMode(strcmp(data, "0") == 0);
break;
case 6: // set contrast (brightness) of OLED
setContrast(atoi(data));
break;
default:
break;
}
Expand Down Expand Up @@ -164,4 +167,9 @@ void GNC255::_renderLabel(const char *text, Label label, Position offset, bool u

_oledDisplay->print(text);
if (update) _oledDisplay->sendBuffer();
}
}

void GNC255::setContrast(uint8_t displayContrast)
{
_oledDisplay->setContrast(displayContrast);
}
2 changes: 2 additions & 0 deletions GNC255/GNC255.h
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Expand Up @@ -44,6 +44,7 @@ class GNC255
bool _hasChanged;
char activeFrequency[8] = "123.456";
char standbyFrequency[8] = "123.456";
uint8_t displayContrast = 32;

void _update();
void _stop();
Expand All @@ -53,4 +54,5 @@ class GNC255
void updateActiveLabel(const char *frequency);
void updateStandbyLabel(const char *frequency);
void _renderLabel(const char *text, Label label, Position offset, bool update = false);
void setContrast(uint8_t displayContrast);
};