diff --git a/boards/thingy52/Makefile.features b/boards/thingy52/Makefile.features
index ebbf16569c..238ccb7477 100644
--- a/boards/thingy52/Makefile.features
+++ b/boards/thingy52/Makefile.features
@@ -1,6 +1,7 @@
 CPU_MODEL = nrf52832xxaa
 
 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_i2c
 FEATURES_PROVIDED += periph_uart
 
 include $(RIOTBOARD)/common/nrf52/Makefile.nrf52832.features
diff --git a/boards/thingy52/include/periph_conf.h b/boards/thingy52/include/periph_conf.h
index 210b1bacf8..6e53f6f6c7 100644
--- a/boards/thingy52/include/periph_conf.h
+++ b/boards/thingy52/include/periph_conf.h
@@ -38,6 +38,30 @@ extern "C" {
 #define UART_PIN_TX         GPIO_PIN(0, 3)
 /** @} */
 
+/**
+ * @name    I2C configuration
+ * @{
+ */
+static const i2c_conf_t i2c_config[] = {
+    {
+        /* main I2C bus */
+        .dev = NRF_TWIM0,
+        .scl = 8,
+        .sda = 7,
+        .speed = I2C_SPEED_NORMAL
+    },
+    {
+        /* EXT I2C bus */
+        .dev = NRF_TWIM1,
+        .scl = 15,
+        .sda = 14,
+        .speed = I2C_SPEED_NORMAL
+    },
+};
+
+#define I2C_NUMOF           ARRAY_SIZE(i2c_config)
+/** @} */
+
 #ifdef __cplusplus
 }
 #endif