Merge pull request #828 from adafruit/eink-degrees

fix(e-ink): use correct degree symbols

Author: tyeth

src/components/display/drivers/dispDrvSt7789.h

@@ -282,7 +282,8 @@ class dispDrvSt7789 : public dispDrvBase {
           i++;
         }
       } else if (message[i] == 0xC2 && message[i + 1] == 0xB0) {
-        _display->write(char(248));
+        // Degree symbol - tested on Feather RevTFT S3
+        _display->write(char(247));
         i++;
       } else {
         _display->print(message[i]);

src/components/display/drivers/dispDrvThinkInkGrayscale4Eaamfgn.h

@@ -258,7 +258,7 @@ class drvDispThinkInkGrayscale4Eaamfgn : public dispDrvBase {
         }
       } else if (message[i] == 0xC2 && message[i + 1] == 0xB0) {
         // Degree symbol
-        _display->write(char(248));
+        _display->write(char(247));
         i++;
       } else {
         _display->print(message[i]);

src/components/display/drivers/dispDrvThinkInkGrayscale4T5.h

@@ -124,7 +124,8 @@ class dispDrvThinkInkGrayscale4T5 : public dispDrvBase {
           i++;
         }
       } else if (message[i] == 0xC2 && message[i + 1] == 0xB0) {
-        _display->write(char(248));
+        // Degree symbol
+        _display->write(char(247));
         i++;
       } else {
         _display->print(message[i]);

src/components/i2c/drivers/WipperSnapper_I2C_Driver_Out_Sh1107.h

@@ -176,7 +176,7 @@ class WipperSnapper_I2C_Driver_Out_SH1107
           i++;
         }
       } else if (message[i] == 0xC2 && message[i + 1] == 0xB0) {
-        _display->write(char(248));
+        _display->write(char(247)); // Tested on SH1107 128x64 wing
         _display->display();
         i++;
       } else {

src/components/i2c/drivers/WipperSnapper_I2C_Driver_Out_Ssd1306.h

@@ -144,7 +144,7 @@ class WipperSnapper_I2C_Driver_Out_Ssd1306
           i++;
         }
       } else if (message[i] == 0xC2 && message[i + 1] == 0xB0) {
-        _display->write(char(248));
+        _display->write(char(248)); // Tested fine on 128x32 wing
         _display->display();
         i++;
       } else {