diff --git a/boards/common/nrf52/include/cfg_i2c_default.h b/boards/common/nrf52/include/cfg_i2c_default.h
new file mode 100644
index 0000000000..24f461ab97
--- /dev/null
+++ b/boards/common/nrf52/include/cfg_i2c_default.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016-2018 Freie Universität Berlin
+ *
+ * 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_common_nrf52
+ * @{
+ *
+ * @file
+ * @brief       Default I2C config for nRF52 based boards
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ *
+ */
+
+#ifndef CFG_I2C_DEFAULT_H
+#define CFG_I2C_DEFAULT_H
+
+#include "periph_cpu.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name    I2C configuration
+ * @{
+ */
+static const i2c_conf_t i2c_config[] = {
+    {
+        .dev = NRF_TWIM1,
+        .scl = 27,
+        .sda = 26,
+        .speed = I2C_SPEED_NORMAL
+    }
+};
+#define I2C_NUMOF           (sizeof(i2c_config) / sizeof(i2c_config[0]))
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CFG_I2C_DEFAULT_H */
+/** @} */
diff --git a/boards/common/nrf52xxxdk/include/periph_conf_common.h b/boards/common/nrf52xxxdk/include/periph_conf_common.h
index aef7fac8f5..3b8f2cec21 100644
--- a/boards/common/nrf52xxxdk/include/periph_conf_common.h
+++ b/boards/common/nrf52xxxdk/include/periph_conf_common.h
@@ -23,6 +23,7 @@
 
 #include "periph_cpu.h"
 #include "cfg_clock_32_1.h"
+#include "cfg_i2c_default.h"
 #include "cfg_rtt_default.h"
 #include "cfg_timer_default.h"
 
@@ -30,21 +31,6 @@
 extern "C" {
 #endif
 
-/**
- * @name    I2C configuration
- * @{
- */
-static const i2c_conf_t i2c_config[] = {
-    {
-        .dev = NRF_TWIM1,
-        .scl = 27,
-        .sda = 26,
-        .speed = I2C_SPEED_NORMAL
-    }
-};
-#define I2C_NUMOF           (sizeof(i2c_config) / sizeof(i2c_config[0]))
-/** @} */
-
 /**
  * @name   PWM configuration
  * @{
diff --git a/boards/common/particle-mesh/include/periph_conf_common.h b/boards/common/particle-mesh/include/periph_conf_common.h
index e4737b4168..829bf70b15 100644
--- a/boards/common/particle-mesh/include/periph_conf_common.h
+++ b/boards/common/particle-mesh/include/periph_conf_common.h
@@ -22,6 +22,7 @@
 
 #include "periph_cpu.h"
 #include "cfg_clock_32_1.h"
+#include "cfg_i2c_default.h"
 #include "cfg_rtt_default.h"
 #include "cfg_timer_default.h"
 
@@ -45,21 +46,6 @@ static const spi_conf_t spi_config[] = {
 #define SPI_NUMOF           (sizeof(spi_config) / sizeof(spi_config[0]))
 /** @} */
 
-/**
- * @name    I2C configuration
- * @{
- */
-static const i2c_conf_t i2c_config[] = {
-    {
-        .dev = NRF_TWIM1,
-        .scl = 27,
-        .sda = 26,
-        .speed = I2C_SPEED_NORMAL
-    }
-};
-#define I2C_NUMOF           (sizeof(i2c_config) / sizeof(i2c_config[0]))
-/** @} */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/boards/nrf52840-mdk/include/periph_conf.h b/boards/nrf52840-mdk/include/periph_conf.h
index 1bbb63e555..8bf2448f7a 100644
--- a/boards/nrf52840-mdk/include/periph_conf.h
+++ b/boards/nrf52840-mdk/include/periph_conf.h
@@ -22,6 +22,7 @@
 
 #include "periph_cpu.h"
 #include "cfg_clock_32_1.h"
+#include "cfg_i2c_default.h"
 #include "cfg_rtt_default.h"
 #include "cfg_spi_default.h"
 #include "cfg_timer_default.h"
@@ -50,21 +51,6 @@ static const uart_conf_t uart_config[] = {
 #define UART_NUMOF          (sizeof(uart_config) / sizeof(uart_config[0]))
 /** @} */
 
-/**
- * @name    I2C configuration
- * @{
- */
-static const i2c_conf_t i2c_config[] = {
-    {
-        .dev = NRF_TWIM0,
-        .scl = 27,
-        .sda = 26,
-        .speed = I2C_SPEED_NORMAL
-    }
-};
-#define I2C_NUMOF           (sizeof(i2c_config) / sizeof(i2c_config[0]))
-/** @} */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/boards/reel/include/periph_conf.h b/boards/reel/include/periph_conf.h
index 8ddd949df6..ed67d8dd9d 100644
--- a/boards/reel/include/periph_conf.h
+++ b/boards/reel/include/periph_conf.h
@@ -22,6 +22,7 @@
 
 #include "periph_cpu.h"
 #include "cfg_clock_32_1.h"
+#include "cfg_i2c_default.h"
 #include "cfg_rtt_default.h"
 #include "cfg_timer_default.h"
 
@@ -65,21 +66,6 @@ static const spi_conf_t spi_config[] = {
 #define SPI_NUMOF           (sizeof(spi_config) / sizeof(spi_config[0]))
 /** @} */
 
-/**
- * @name    I2C configuration
- * @{
- */
-static const i2c_conf_t i2c_config[] = {
-    {
-        .dev = NRF_TWIM1,
-        .scl = GPIO_PIN(0, 27),
-        .sda = GPIO_PIN(0, 26),
-        .speed = I2C_SPEED_NORMAL
-    }
-};
-#define I2C_NUMOF           (sizeof(i2c_config) / sizeof(i2c_config[0]))
-/** @} */
-
 #ifdef __cplusplus
 }
 #endif