Set brightness based on a scale 0-100

Author: steadramon

ESPGeiger/src/OLEDDisplay/OLEDDisplay.h

@@ -80,12 +80,18 @@ class SSD1306Display : public SSD1306Wire{
   void clear() {
     SSD1306Wire::clear();
   }
+
   void clear(int start, int end) {
     setColor(BLACK);
     fillRect(0, (start+1)*fontHeight, OLED_WIDTH, (end-start+1)*fontHeight);
     setColor(WHITE);
   }
 
+  void setBrightness(uint8_t brightness) {
+    brightness = (int)brightness * 2.55;
+    SSD1306Wire::setBrightness(brightness);
+  }
+
   uint8_t type() { return 1; }
   void noBlink() {/*no support*/}
   void blink() {/*no support*/}