Version 1.3.7

- added support for GDEW0102T4 1.02" b/w 80x128 panel or Waveshare 1.02" b/w board - the GDEW0102T4 panel has a different connector than the other SPI panels - the GDEW0102T4 panel can be used with the DESPI-C102 connection module - https://buy-lcd.com/products/connection-board-demo-kit-for-102-inch-e-ink-display-despi-c102 - my test have been done with the Waveshare 1.02" b/w board
ZinggJM · Aug 11, 2021 · 7457c3e · 7457c3e
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diff --git a/README.md b/README.md
@@ -52,6 +52,7 @@
 - https://github.com/olikraus/u8glib/wiki/tpictureloop
 
 ### Supported SPI e-paper panels from Good Display:
+- GDEW0102T4     1.02" b/w
 - GDEP015OC1     1.54" b/w
 - GDEH0154D67    1.54" b/w, replacement for GDEP015OC1
 - GDEW0154T8     1.54" b/w 152x152
@@ -104,7 +105,13 @@
 - promotion panels from suppliers are welcome, to add support to GxEPD2
 - donation panels from users are welcome, to add support to GxEPD2
 
-### Version 1.3.6
+### Version 1.3.7
+- added support for GDEW0102T4 1.02" b/w 80x128 panel or Waveshare 1.02" b/w board
+- the GDEW0102T4 panel has a different connector than the other SPI panels
+- the GDEW0102T4 panel can be used with the DESPI-C102 connection module
+- https://buy-lcd.com/products/connection-board-demo-kit-for-102-inch-e-ink-display-despi-c102
+- my test have been done with the Waveshare 1.02" b/w board
+#### Version 1.3.6
 - added support for Waveshare 2.9" b/w V2, driver class GxEPD2_290_T94_V2
 - Waveshare 2.9" b/w V2 uses a GDEM029T94 variant without partial update wft in OTP
 - driver class GxEPD2_290_T94_V2 uses partial update wft written to registers

diff --git a/examples/GxEPD2_Example/GxEPD2_Example.ino b/examples/GxEPD2_Example/GxEPD2_Example.ino
@@ -43,6 +43,7 @@
 //                  therefore bitmaps may get optimized out by the linker
 
 // comment out unused bitmaps to reduce code space used
+#include "bitmaps/Bitmaps80x128.h"  // 1.02" b/w
 #include "bitmaps/Bitmaps152x152.h" // 1.54" b/w
 #include "bitmaps/Bitmaps200x200.h" // 1.54" b/w
 #include "bitmaps/Bitmaps104x212.h" // 2.13" b/w flexible GDEW0213I5F
@@ -74,6 +75,7 @@
 #else
 
 // select only one to fit in code space
+//#include "bitmaps/Bitmaps80x128.h"  // 1.02" b/w
 #include "bitmaps/Bitmaps200x200.h" // 1.54" b/w
 //#include "bitmaps/Bitmaps104x212.h" // 2.13" b/w flexible GDEW0213I5F
 //#include "bitmaps/Bitmaps128x250.h" // 2.13" b/w
@@ -113,6 +115,11 @@ void setup()
   //delay(1000);
   showFont("FreeMonoBold9pt7b", &FreeMonoBold9pt7b);
   delay(1000);
+  if (display.epd2.WIDTH < 104)
+  {
+    showFont("glcdfont", 0);
+    delay(1000);
+  }
   drawBitmaps();
 #if !defined(__AVR) // takes too long!
   if (display.epd2.panel == GxEPD2::ACeP565)
@@ -158,6 +165,7 @@ void helloWorld()
   //Serial.println("helloWorld");
   display.setRotation(1);
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(GxEPD_BLACK);
   int16_t tbx, tby; uint16_t tbw, tbh;
   display.getTextBounds(HelloWorld, 0, 0, &tbx, &tby, &tbw, &tbh);
@@ -232,6 +240,7 @@ void helloFullScreenPartialMode()
   display.setPartialWindow(0, 0, display.width(), display.height());
   display.setRotation(1);
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(GxEPD_BLACK);
   const char* updatemode;
   if (display.epd2.hasFastPartialUpdate)
@@ -280,6 +289,7 @@ void helloArduino()
   //Serial.println("helloArduino");
   display.setRotation(1);
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(display.epd2.hasColor ? GxEPD_RED : GxEPD_BLACK);
   int16_t tbx, tby; uint16_t tbw, tbh;
   // align with centered HelloWorld
@@ -310,14 +320,15 @@ void helloEpaper()
   //Serial.println("helloEpaper");
   display.setRotation(1);
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(display.epd2.hasColor ? GxEPD_RED : GxEPD_BLACK);
   int16_t tbx, tby; uint16_t tbw, tbh;
   // align with centered HelloWorld
   display.getTextBounds(HelloWorld, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t x = ((display.width() - tbw) / 2) - tbx;
   // height might be different
   display.getTextBounds(HelloEpaper, 0, 0, &tbx, &tby, &tbw, &tbh);
-  uint16_t y = (display.height() * 3 / 4) + tbh / 2; // y is base line!
+  uint16_t y = ((display.height() * 3 / 4) - tbh / 2) - tby; // y is base line!
   // make the window big enough to cover (overwrite) descenders of previous text
   uint16_t wh = FreeMonoBold9pt7b.yAdvance;
   uint16_t wy = (display.height() * 3 / 4) - wh / 2;
@@ -392,10 +403,10 @@ void helloValue(double v, int digits)
   int16_t tbx, tby; uint16_t tbw, tbh;
   display.getTextBounds(valueString, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t x = ((display.width() - tbw) / 2) - tbx;
-  uint16_t y = (display.height() * 3 / 4) + tbh / 2; // y is base line!
+  uint16_t y = ((display.height() * 3 / 4) - tbh / 2) - tby; // y is base line!
   // show what happens, if we use the bounding box for partial window
   uint16_t wx = (display.width() - tbw) / 2;
-  uint16_t wy = (display.height() * 3 / 4) - tbh / 2;
+  uint16_t wy = ((display.height() * 3 / 4) - tbh / 2) - tby; // y is base line!
   display.setPartialWindow(wx, wy, tbw, tbh);
   display.firstPage();
   do
@@ -438,6 +449,7 @@ void deepSleepTest()
   const char again[] = "again";
   display.setRotation(1);
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(GxEPD_BLACK);
   int16_t tbx, tby; uint16_t tbw, tbh;
   // center text
@@ -457,10 +469,10 @@ void deepSleepTest()
   delay(5000);
   display.getTextBounds(wokeup, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t wx = (display.width() - tbw) / 2;
-  uint16_t wy = (display.height() / 3) + tbh / 2; // y is base line!
+  uint16_t wy = ((display.height() / 3) - tbh / 2) - tby; // y is base line!
   display.getTextBounds(from, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t fx = (display.width() - tbw) / 2;
-  uint16_t fy = (display.height() * 2 / 3) + tbh / 2; // y is base line!
+  uint16_t fy = ((display.height() * 2 / 3) - tbh / 2) - tby; // y is base line!
   display.firstPage();
   do
   {
@@ -474,10 +486,10 @@ void deepSleepTest()
   delay(5000);
   display.getTextBounds(hibernating, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t hx = (display.width() - tbw) / 2;
-  uint16_t hy = (display.height() / 3) + tbh / 2; // y is base line!
+  uint16_t hy = ((display.height() / 3) - tbh / 2) - tby; // y is base line!
   display.getTextBounds(again, 0, 0, &tbx, &tby, &tbw, &tbh);
   uint16_t ax = (display.width() - tbw) / 2;
-  uint16_t ay = (display.height() * 2 / 3) + tbh / 2; // y is base line!
+  uint16_t ay = ((display.height() * 2 / 3) - tbh / 2) - tby; // y is base line!
   display.firstPage();
   do
   {
@@ -588,9 +600,11 @@ void showPartialUpdate()
   uint16_t box_w = 70;
   uint16_t box_h = 20;
   uint16_t cursor_y = box_y + box_h - 6;
+  if (display.epd2.WIDTH < 104) cursor_y = box_y + 6;
   float value = 13.95;
   uint16_t incr = display.epd2.hasFastPartialUpdate ? 1 : 3;
   display.setFont(&FreeMonoBold9pt7b);
+  if (display.epd2.WIDTH < 104) display.setFont(0);
   display.setTextColor(GxEPD_BLACK);
   // show where the update box is
   for (uint16_t r = 0; r < 4; r++)
@@ -646,6 +660,9 @@ void showPartialUpdate()
 void drawBitmaps()
 {
   display.setFullWindow();
+#ifdef _GxBitmaps80x128_H_
+  drawBitmaps80x128();
+#endif
 #ifdef _GxBitmaps152x152_H_
   drawBitmaps152x152();
 #endif
@@ -720,6 +737,45 @@ void drawBitmaps()
   }
 }
 
+#ifdef _GxBitmaps80x128_H_
+void drawBitmaps80x128()
+{
+#if !defined(__AVR)
+  const unsigned char* bitmaps[] =
+  {
+    Bitmap80x128_1, Bitmap80x128_2, Bitmap80x128_3, Bitmap80x128_4, Bitmap80x128_5
+  };
+#else
+  const unsigned char* bitmaps[] =
+  {
+    Bitmap80x128_1, Bitmap80x128_2, Bitmap80x128_3, Bitmap80x128_4, Bitmap80x128_5
+  };
+#endif
+  if ((display.epd2.WIDTH == 80) && (display.epd2.HEIGHT == 128))
+  {
+    for (uint16_t i = 0; i < sizeof(bitmaps) / sizeof(char*); i++)
+    {
+      display.firstPage();
+      do
+      {
+        display.fillScreen(GxEPD_WHITE);
+        display.drawInvertedBitmap(0, 0, bitmaps[i], 80, 128, GxEPD_BLACK);
+      }
+      while (display.nextPage());
+      delay(2000);
+    }
+    display.firstPage();
+    do
+    {
+      display.fillScreen(GxEPD_WHITE);
+      display.drawBitmap(0, 0, WS_Bitmap80x128, 80, 128, GxEPD_BLACK);
+    }
+    while (display.nextPage());
+    delay(2000);
+  }
+}
+#endif
+
 #ifdef _GxBitmaps152x152_H_
 void drawBitmaps152x152()
 {

diff --git a/examples/GxEPD2_Example/GxEPD2_display_selection.h b/examples/GxEPD2_Example/GxEPD2_display_selection.h
@@ -15,6 +15,7 @@
 
 #if defined (ESP8266)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0154T8 152x152
@@ -125,6 +126,7 @@
 
 #if defined(ESP32)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0154T8 152x152
@@ -191,6 +193,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0154T8 152x152
@@ -248,6 +251,7 @@
 #endif
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152

diff --git a/examples/GxEPD2_Example/GxEPD2_display_selection_added.h b/examples/GxEPD2_Example/GxEPD2_display_selection_added.h
@@ -22,6 +22,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 32768ul // e.g., up to 96k
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(//*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152
@@ -86,6 +87,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0154T8 152x152
@@ -146,6 +148,7 @@
 
 #if defined(ESP32) && defined(ARDUINO_LOLIN_D32_PRO)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0154T8 152x152
@@ -204,6 +207,7 @@
 
 #if defined(ESP32) && defined(ARDUINO_ESP32_DEV)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0154T8 152x152
@@ -316,6 +320,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 131072ul // e.g. half of available ram
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152

diff --git a/examples/GxEPD2_Example/GxEPD2_display_selection_new_style.h b/examples/GxEPD2_Example/GxEPD2_display_selection_new_style.h
@@ -19,6 +19,7 @@
 //#define GxEPD2_DISPLAY_CLASS GxEPD2_7C
 
 // select the display driver class (only one) for your  panel
+//#define GxEPD2_DRIVER_CLASS GxEPD2_102     // GxEPD2_102   80x128, UC8175
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154     // GDEP015OC1  200x200, IL3829, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_D67 // GDEH0154D67 200x200, SSD1681
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_T8  // GDEW0154T8  152x152, UC8151 (IL0373)

diff --git a/examples/GxEPD2_Example/GxEPD2_selection_check.h b/examples/GxEPD2_Example/GxEPD2_selection_check.h
@@ -13,6 +13,7 @@
 // Waveshare e-paper displays with SPI: http://forum.arduino.cc/index.php?topic=487007.0
 // Good Display ePaper for Arduino: https://forum.arduino.cc/index.php?topic=436411.0
 
+#define GxEPD2_102_IS_BW true
 #define GxEPD2_154_IS_BW true
 #define GxEPD2_154_D67_IS_BW true
 #define GxEPD2_154_T8_IS_BW true

diff --git a/examples/GxEPD2_GFX_Example/GxEPD2_display_selection.h b/examples/GxEPD2_GFX_Example/GxEPD2_display_selection.h
@@ -15,6 +15,7 @@
 
 #if defined (ESP8266)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0154T8 152x152
@@ -125,6 +126,7 @@
 
 #if defined(ESP32)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0154T8 152x152
@@ -191,6 +193,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0154T8 152x152
@@ -248,6 +251,7 @@
 #endif
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152