diff --git a/esp32s3/balance/main/config.h b/esp32s3/balance/main/config.h
index 3ed5f99..c156553 100644
--- a/esp32s3/balance/main/config.h
+++ b/esp32s3/balance/main/config.h
@@ -32,13 +32,13 @@
 #define VESC_ID_A               56u     /* TELEM_VESC_LEFT  (0x81) */
 #define VESC_ID_B               68u     /* TELEM_VESC_RIGHT (0x82) */
 
-/* ── GC9A01 240×240 round display (bd-1yr8, SPI2) ── */
-#define DISP_CS_GPIO    12
-#define DISP_DC_GPIO    11
-#define DISP_RST_GPIO   10
-#define DISP_BL_GPIO     9
-#define DISP_MOSI_GPIO  13
-#define DISP_SCK_GPIO   14
+/* ── GC9A01 240×240 round display (Waveshare ESP32-S3-LCD-1.28, SPI2) ── */
+#define DISP_DC_GPIO     8
+#define DISP_CS_GPIO     9
+#define DISP_SCK_GPIO   10
+#define DISP_MOSI_GPIO  11
+#define DISP_RST_GPIO   12
+#define DISP_BL_GPIO    40
 
 /* ── Safety / timing ── */
 #define HB_TIMEOUT_MS           500u    /* heartbeat watchdog: disarm if exceeded */