diff --git a/include/fix_esp32c3.h b/include/fix_esp32c3.h
index 1964eb354..96e994159 100644
--- a/include/fix_esp32c3.h
+++ b/include/fix_esp32c3.h
@@ -38,3 +38,17 @@
 #define __UINT32_TYPE__     unsigned int
 
 #endif // __riscv
+
+// fix a bug in esp-idf 4.4 for esp32c3
+#ifndef REG_SPI_BASE
+#define REG_SPI_BASE(i)     (DR_REG_SPI1_BASE + (((i)>1) ? (((i)* 0x1000) + 0x20000) : (((~(i)) & 1)* 0x1000 )))
+#endif
+
+#if CONFIG_IDF_TARGET_ESP32C3
+// SPI_MOSI_DLEN_REG is not defined anymore in esp32c3, instead use SPI_MS_DLEN_REG
+#define SPI_MOSI_DLEN_REG(x) SPI_MS_DLEN_REG(x)
+//alias for different chips, deprecated for the chips after esp32s2
+#define SPI_HOST    SPI1_HOST
+#define HSPI_HOST   SPI2_HOST
+#define VSPI_HOST   SPI3_HOST
+#endif
\ No newline at end of file
diff --git a/lib/lib_basic/NeoPixelBus/src/internal/DotStarEsp32DmaSpiMethod.h b/lib/lib_basic/NeoPixelBus/src/internal/DotStarEsp32DmaSpiMethod.h
index d71cf79d8..a9d149b71 100644
--- a/lib/lib_basic/NeoPixelBus/src/internal/DotStarEsp32DmaSpiMethod.h
+++ b/lib/lib_basic/NeoPixelBus/src/internal/DotStarEsp32DmaSpiMethod.h
@@ -29,9 +29,9 @@ License along with NeoPixel.  If not, see
 
 #include "driver/spi_master.h"
 
-#if defined(CONFIG_IDF_TARGET_ESP32C3)
+#if defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(HSPI_HOST)
 // HSPI_HOST depreciated in C3
-#define HSPI_HOST   SPI3_HOST
+#define HSPI_HOST   SPI2_HOST
 #endif
 
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
diff --git a/lib/lib_display/UDisplay/uDisplay.h b/lib/lib_display/UDisplay/uDisplay.h
index 78f96ad6c..42b8f47a3 100755
--- a/lib/lib_display/UDisplay/uDisplay.h
+++ b/lib/lib_display/UDisplay/uDisplay.h
@@ -54,8 +54,13 @@ enum uColorType { uCOLOR_BW, uCOLOR_COLOR };
 #undef GPIO_CLR
 #undef GPIO_SET_SLOW
 #undef GPIO_CLR_SLOW
+#if CONFIG_IDF_TARGET_ESP32C3
+#define GPIO_CLR(A) GPIO.out_w1tc.val = (1 << A)
+#define GPIO_SET(A) GPIO.out_w1ts.val = (1 << A)
+#else // plain ESP32
 #define GPIO_CLR(A) GPIO.out_w1tc = (1 << A)
 #define GPIO_SET(A) GPIO.out_w1ts = (1 << A)
+#endif
 #define GPIO_CLR_SLOW(A) digitalWrite(A, LOW)
 #define GPIO_SET_SLOW(A) digitalWrite(A, HIGH)