diff --git a/boards/serpente/Makefile.dep b/boards/serpente/Makefile.dep
index 311431223f..9a846d2395 100644
--- a/boards/serpente/Makefile.dep
+++ b/boards/serpente/Makefile.dep
@@ -3,7 +3,7 @@ ifneq (,$(filter mtd,$(USEMODULE)))
 endif
 
 ifneq (,$(filter saul_default,$(USEMODULE)))
-  USEMODULE += saul_gpio
+  USEMODULE += saul_pwm
 endif
 
 # setup the samd21 arduino bootloader related dependencies
diff --git a/boards/serpente/include/gpio_params.h b/boards/serpente/include/gpio_params.h
deleted file mode 100644
index 276e903018..0000000000
--- a/boards/serpente/include/gpio_params.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C)  2020 Benjamin Valentin
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
- */
-
-/**
- * @ingroup     boards_serpente
- * @{
- *
- * @file
- * @brief       Board specific configuration of direct mapped GPIOs
- *
- * @author      Benjamin Valentin <benpicco@googlemail.com>
- */
-
-#ifndef GPIO_PARAMS_H
-#define GPIO_PARAMS_H
-
-#include "board.h"
-#include "saul/periph.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @brief    GPIO pin configuration
- */
-static const  saul_gpio_params_t saul_gpio_params[] =
-{
-    {
-        .name = LED0_NAME,
-        .pin = LED0_PIN,
-        .mode = GPIO_OUT,
-        .flags = SAUL_GPIO_INVERTED,
-    },
-    {
-        .name = LED1_NAME,
-        .pin = LED1_PIN,
-        .mode = GPIO_OUT,
-        .flags = SAUL_GPIO_INVERTED,
-    },
-    {
-        .name = LED2_NAME,
-        .pin = LED2_PIN,
-        .mode = GPIO_OUT,
-        .flags = SAUL_GPIO_INVERTED,
-    },
-};
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* GPIO_PARAMS_H */
-/** @} */
diff --git a/boards/serpente/include/pwm_params.h b/boards/serpente/include/pwm_params.h
new file mode 100644
index 0000000000..d2237849b1
--- /dev/null
+++ b/boards/serpente/include/pwm_params.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2020 Marian Buschsieweke
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     boards_serpente
+ * @{
+ *
+ * @file
+ * @brief       Configuration of SAUL mapped PWM channels
+ *
+ * @author      Marian Buschsieweke <marian.buschsieweke@ovgu.de>
+ */
+
+#ifndef PWM_PARAMS_H
+#define PWM_PARAMS_H
+
+#include "board.h"
+#include "saul/periph.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static const saul_pwm_rgb_params_t saul_pwm_rgb_params[] =
+{
+    {
+        .name  = "LED",
+        .channels = {
+            { PWM_DEV(0), 3, SAUL_PWM_INVERTED },
+            { PWM_DEV(0), 2, SAUL_PWM_INVERTED },
+            { PWM_DEV(0), 4, SAUL_PWM_INVERTED }
+        }
+    }
+};
+
+#define SAUL_PWM_NO_DIMMER
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PWM_PARAMS_H */
+/** @} */