degrees celsius symbol about ssd1306ascii HOT 3 CLOSED

The degree symbol is the last character in the System5x7 font it is character 128 decimal or 200 octal.

This code:

  oled.setFont(System5x7);
  auto tempC = 25.0;
  auto tempF = tempC*9/5 + 32;
  oled.print(tempC, 1);  // Use one decimal digit
  oled.print(" \200C is ");  // \200 is octal escape for degree symbol
  oled.print(tempF, 1);
  oled.println(" \200F\n");

Should print:

25.0 °C is 77.0 °F

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That did work. Thank you Bill.
I can see it's been documented since 2018 here : https://github.com/greiman/SSD1306Ascii/blob/master/src/fonts/System5x7.h#L144
It did not came up in the search results within the repo when I looked for "degrees". Sorry about that.
Have a great day.

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If you need symbols in cp437 you can use cp437font8x8 or Adafruit5x7. For Adafruit5x7 you must change this symbol in Adafruit5x7.h.

#define ADAFRUIT_ASCII96 0 // was one

To select the fonts use:
oled.setFont(cp437font8x8);
or
oled.setFont(Adafruit5x7);

The down side is that println() will no longer work since \n and \r are now this bullet, ◙, and eighth note, ♪.

You must use cursor positioning and clear line instead of println().

Also you must use escaped character codes.

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