diff --git a/variants/waveshare_rp2040_matrix/pins_arduino.h b/variants/waveshare_rp2040_matrix/pins_arduino.h
index d16d9f97e..26125a56f 100644
--- a/variants/waveshare_rp2040_matrix/pins_arduino.h
+++ b/variants/waveshare_rp2040_matrix/pins_arduino.h
@@ -34,7 +34,7 @@
 #define PIN_WIRE1_SDA  (26u)
 #define PIN_WIRE1_SCL  (27u)
 
-#define SERIAL_HOWMANY (2u)
+#define SERIAL_HOWMANY (3u)
 #define SPI_HOWMANY    (2u)
 #define WIRE_HOWMANY   (2u)
 
diff --git a/variants/waveshare_rp2040_one/pins_arduino.h b/variants/waveshare_rp2040_one/pins_arduino.h
index bf2bbc7a4..d84591ad7 100644
--- a/variants/waveshare_rp2040_one/pins_arduino.h
+++ b/variants/waveshare_rp2040_one/pins_arduino.h
@@ -58,7 +58,7 @@
 #define PIN_WIRE1_SDA  (26u)
 #define PIN_WIRE1_SCL  (27u)
 
-#define SERIAL_HOWMANY (2u)
+#define SERIAL_HOWMANY (3u)
 #define SPI_HOWMANY    (2u)
 #define WIRE_HOWMANY   (2u)
 
diff --git a/variants/waveshare_rp2040_pizero/pins_arduino.h b/variants/waveshare_rp2040_pizero/pins_arduino.h
index 85f9b5508..264e3a51d 100644
--- a/variants/waveshare_rp2040_pizero/pins_arduino.h
+++ b/variants/waveshare_rp2040_pizero/pins_arduino.h
@@ -29,7 +29,7 @@
 #define PIN_WIRE1_SDA  (26u)
 #define PIN_WIRE1_SCL  (27u)
 
-#define SERIAL_HOWMANY (2u)
+#define SERIAL_HOWMANY (3u)
 #define SPI_HOWMANY    (2u)
 #define WIRE_HOWMANY   (2u)
 
diff --git a/variants/waveshare_rp2040_zero/pins_arduino.h b/variants/waveshare_rp2040_zero/pins_arduino.h
index d9c7340da..387656b09 100644
--- a/variants/waveshare_rp2040_zero/pins_arduino.h
+++ b/variants/waveshare_rp2040_zero/pins_arduino.h
@@ -59,7 +59,7 @@
 #define PIN_WIRE1_SDA  (26u)
 #define PIN_WIRE1_SCL  (27u)
 
-#define SERIAL_HOWMANY (2u)
+#define SERIAL_HOWMANY (3u)
 #define SPI_HOWMANY    (2u)
 #define WIRE_HOWMANY   (2u)
 
diff --git a/variants/waveshare_rp2350_zero/pins_arduino.h b/variants/waveshare_rp2350_zero/pins_arduino.h
index 53098d524..57cbac5b1 100644
--- a/variants/waveshare_rp2350_zero/pins_arduino.h
+++ b/variants/waveshare_rp2350_zero/pins_arduino.h
@@ -58,7 +58,7 @@
 #define PIN_WIRE1_SDA (26u)
 #define PIN_WIRE1_SCL (27u)
 
-#define SERIAL_HOWMANY (2u)
+#define SERIAL_HOWMANY (3u)
 #define SPI_HOWMANY (2u)
 #define WIRE_HOWMANY (2u)