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Swap the RES and DC pins to solve the problem of no display on some ESP32 development boards. It's quite strange.

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This commit is contained in:
YXZhu
2026-01-15 10:57:37 +08:00
parent 7c94d3d142
commit c588226898
1 changed files with 3 additions and 3 deletions
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Example/EpaperModuleTest_Arduino_ESP32/EpaperModuleTest_Arduino_ESP32.ino
+3 -3
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@@ -10,8 +10,8 @@
// ESP32 CS(SS)=5,SCL(SCK)=18,SDA(MOSI)=23,BUSY=4,RES(RST)=17,DC=16
#define CS_PIN (5)
#define BUSY_PIN (4)
#define RES_PIN (17)
#define DC_PIN (16)
#define RES_PIN (16)
#define DC_PIN (17)
// 1.54'' EPD Module
//GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ CS_PIN, /*DC=*/ DC_PIN, /*RES=*/ RES_PIN, /*BUSY=*/ BUSY_PIN)); // GDEH0154D67 200x200, SSD1681
@@ -25,7 +25,7 @@
//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ CS_PIN, /*DC=*/ DC_PIN, /*RES=*/ RES_PIN, /*BUSY=*/ BUSY_PIN)); // GDEM029C90 128x296, SSD1680
// 3.7'' EPD Module
GxEPD2_BW<GxEPD2_370_GDEY037T03, GxEPD2_370_GDEY037T03::HEIGHT> display(GxEPD2_370_GDEY037T03(/*CS=5*/ CS_PIN, /*DC=*/ DC_PIN, /*RES=*/ RES_PIN, /*BUSY=*/ BUSY_PIN)); // GDEY037T03 240x416, UC8253
//GxEPD2_BW<GxEPD2_370_GDEY037T03, GxEPD2_370_GDEY037T03::HEIGHT> display(GxEPD2_370_GDEY037T03(/*CS=5*/ CS_PIN, /*DC=*/ DC_PIN, /*RES=*/ RES_PIN, /*BUSY=*/ BUSY_PIN)); // GDEY037T03 240x416, UC8253
// 4.2'' EPD Module
//GxEPD2_BW<GxEPD2_420_GDEY042T81, GxEPD2_420_GDEY042T81::HEIGHT> display(GxEPD2_420_GDEY042T81(/*CS=5*/ CS_PIN, /*DC=*/ DC_PIN, /*RES=*/ RES_PIN, /*BUSY=*/ BUSY_PIN)); // 400x300, SSD1683