diff --git a/boards/atmega256rfr2-xpro/Makefile b/boards/atmega256rfr2-xpro/Makefile
new file mode 100644
index 0000000000..3134740b39
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/Makefile
@@ -0,0 +1,5 @@
+MODULE = board
+
+DIRS = $(RIOTBOARD)/common/atmega
+
+include $(RIOTBASE)/Makefile.base
diff --git a/boards/atmega256rfr2-xpro/Makefile.dep b/boards/atmega256rfr2-xpro/Makefile.dep
new file mode 100644
index 0000000000..5fbb1fda53
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/Makefile.dep
@@ -0,0 +1,7 @@
+USEMODULE += boards_common_atmega
+
+ifneq (,$(filter saul_default,$(USEMODULE)))
+  # I2C sensor available at address 0x4B
+  USEMODULE += at30tse75x
+  USEMODULE += saul_gpio
+endif
diff --git a/boards/atmega256rfr2-xpro/Makefile.features b/boards/atmega256rfr2-xpro/Makefile.features
new file mode 100644
index 0000000000..d74e7bdea9
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/Makefile.features
@@ -0,0 +1,7 @@
+CPU = atmega256rfr2
+
+FEATURES_PROVIDED += periph_adc
+FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_spi
+FEATURES_PROVIDED += periph_timer
+FEATURES_PROVIDED += periph_uart
diff --git a/boards/atmega256rfr2-xpro/Makefile.include b/boards/atmega256rfr2-xpro/Makefile.include
new file mode 100644
index 0000000000..3f55b658d4
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/Makefile.include
@@ -0,0 +1,16 @@
+# configure the terminal program
+PORT_LINUX ?= /dev/ttyACM0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+BAUD ?= 9600
+include $(RIOTMAKE)/tools/serial.inc.mk
+
+# Use EDBG (xplainedpro) programmer with avrdude
+PROGRAMMER ?= xplainedpro
+
+# This board can be reset via avrdude
+RESET ?= avrdude -c $(PROGRAMMER) -p m256rfr2
+# Use edbg interface for debugging
+DEBUGSERVER_INTERFACE ?= --edbg
+
+include $(RIOTMAKE)/tools/avrdude.inc.mk
+include $(RIOTBOARD)/common/atmega/Makefile.include
diff --git a/boards/atmega256rfr2-xpro/dist/debug.sh b/boards/atmega256rfr2-xpro/dist/debug.sh
new file mode 100755
index 0000000000..d1fb3d67ea
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/dist/debug.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+# The setsid command is needed so that Ctrl+C in GDB doesn't kill avarice
+: ${SETSID:=setsid}
+
+sleep 2
+${SETSID} -w avarice $1 &
+sleep 3 && avr-gdb -ex "target remote localhost:$3" $4
+
+# avarice exits with 1 if the connection is released, therefore we always exit with 0
+exit 0
diff --git a/boards/atmega256rfr2-xpro/dist/debug_srv.sh b/boards/atmega256rfr2-xpro/dist/debug_srv.sh
new file mode 100755
index 0000000000..8e7de053ab
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/dist/debug_srv.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+sleep 2
+avarice $1
+
+# avarice exits with 1 if the connection is released, therefore we always exit with 0
+exit 0
diff --git a/boards/atmega256rfr2-xpro/dist/gdb.conf b/boards/atmega256rfr2-xpro/dist/gdb.conf
new file mode 100644
index 0000000000..ca68eb344c
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/dist/gdb.conf
@@ -0,0 +1 @@
+set $pc=0x00
diff --git a/boards/atmega256rfr2-xpro/doc.txt b/boards/atmega256rfr2-xpro/doc.txt
new file mode 100644
index 0000000000..1c7d677cad
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/doc.txt
@@ -0,0 +1,29 @@
+/**
+@defgroup    boards_atmega256rfr2-xpro Atmega256RFR2 Xplained Pro
+@ingroup     boards
+@brief       Support for the Atmega256RFR2 Xplained Pro board
+
+### General information
+
+The [Atmega256RFR2 Xplained Pro](https://www.microchip.com/DevelopmentTools/ProductDetails/ATMEGA256RFR2-XPRO)
+is an evaluation kit by Microchip for their ATmega256RFR2 microcontroller.
+
+### Flash the board
+
+You can flash the board using the on-board EDBG programmer via JTAG. Avrdude has
+support for programming an AVR via EDBG with its xplainedpro programmer:
+
+```
+make BOARD=atmega256rfr2-xpro -C examples/hello-world flash
+```
+
+### Accessing STDIO via UART
+
+STDIO can be accessed through the USB connector. The on-board UART-USB
+adapter is not affected by flashing. It shows up as /dev/ttyACM0 on Linux.
+It will be used automatically with `make term`:
+```
+make BOARD=atmega256rfr2-xpro -C examples/hello-world term
+```
+
+*/
diff --git a/boards/atmega256rfr2-xpro/include/board.h b/boards/atmega256rfr2-xpro/include/board.h
new file mode 100644
index 0000000000..327958937e
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/include/board.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * 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_atmega256rfr2-xpro
+ * @{
+ *
+ * @file
+ * @brief       Board specific definitions for the Atmega256RFR2 Xplained Pro
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef BOARD_H
+#define BOARD_H
+
+#include "cpu.h"
+#include "periph/gpio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name    STDIO configuration
+ *
+ * As the CPU is too slow to handle 115200 baud, we set the default
+ * baudrate to 9600 for this board
+ * @{
+ */
+#define STDIO_UART_BAUDRATE (9600U)
+/** @} */
+
+/**
+ * @brief   Use the UART 1 for STDIO on this board
+ */
+#define STDIO_UART_DEV       (UART_DEV(1))
+
+/**
+ * @name    xtimer configuration values
+ *
+ * Xtimer runs at 8MHz / 64 = 125kHz
+ * @{
+ */
+#define XTIMER_DEV                  (0)
+#define XTIMER_CHAN                 (0)
+#define XTIMER_WIDTH                (16)
+#define XTIMER_HZ                   (125000UL)
+#define XTIMER_BACKOFF              (40)
+/** @} */
+
+/**
+ * @name    Macros for controlling the on-board LED
+ * @{
+ */
+#define LED0_PIN            GPIO_PIN(PORT_B, 4)
+#define LED0_MODE           GPIO_OUT
+#define LED0_ENABLE_PORT    DDRB  |=  LED0_PIN
+#define LED0_ON             PORTB |=  LED0_PIN
+#define LED0_OFF            PORTB &= ~LED0_PIN
+#define LED0_TOGGLE         PORTB ^=  LED0_PIN
+/** @} */
+
+/**
+ * @name    Button pin configuration
+ * @{
+ */
+#define BTN0_PIN     GPIO_PIN(PORT_E, 4)
+#define BTN0_MODE    GPIO_IN_PU
+/** @} */
+
+/**
+ * @brief   Initialize board specific hardware, including clock, LEDs and std-IO
+ */
+void board_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BOARD_H */
+/** @} */
diff --git a/boards/atmega256rfr2-xpro/include/gpio_params.h b/boards/atmega256rfr2-xpro/include/gpio_params.h
new file mode 100644
index 0000000000..3b6a97a33b
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/include/gpio_params.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * 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_atmega256rfr2-xpro
+ * @{
+ *
+ * @file
+ * @brief       Configuration of SAUL mapped GPIO pins
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef GPIO_PARAMS_H
+#define GPIO_PARAMS_H
+
+#include "board.h"
+#include "saul/periph.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   GPIO configuration
+ */
+static const  saul_gpio_params_t saul_gpio_params[] =
+{
+    {
+        .name = "BTN0 (SW0)",
+        .pin  = BTN0_PIN,
+        .mode = BTN0_MODE,
+        .flags = SAUL_GPIO_INVERTED,
+    },
+    {
+        .name = "LED0 (Yellow)",
+        .pin = LED0_PIN,
+        .mode = LED0_MODE,
+        .flags = (SAUL_GPIO_INVERTED | SAUL_GPIO_INIT_CLEAR),
+    },
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GPIO_PARAMS_H */
+/** @} */
diff --git a/boards/atmega256rfr2-xpro/include/periph_conf.h b/boards/atmega256rfr2-xpro/include/periph_conf.h
new file mode 100644
index 0000000000..5c65b2290c
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/include/periph_conf.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * 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_atmega256rfr2-xpro
+ * @{
+ *
+ * @file
+ * @brief   Peripheral MCU configuration for the Atmega256RFR2 Xplained Pro
+ *
+ * @author  Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef PERIPH_CONF_H
+#define PERIPH_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name    Clock configuration
+ * @{
+ */
+#ifndef CLOCK_CORECLOCK
+/* Using 8MHz internal oscillator as default clock source */
+#define CLOCK_CORECLOCK     (8000000UL)
+#endif
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#include "periph_conf_atmega_common.h"
+
+#endif /* PERIPH_CONF_H */
diff --git a/boards/atmega256rfr2-xpro/led_init.c b/boards/atmega256rfr2-xpro/led_init.c
new file mode 100644
index 0000000000..f68937e951
--- /dev/null
+++ b/boards/atmega256rfr2-xpro/led_init.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * 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_atmega256rfr2-xpro
+ * @{
+ *
+ * @file
+ * @brief       Board specific implementation for the Atmega256RFR2 Xplained Pro
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ *
+ * @}
+ */
+
+#include "board.h"
+
+void led_init(void)
+{
+    LED0_ENABLE_PORT;
+    LED0_OFF;
+}
diff --git a/examples/default/Makefile b/examples/default/Makefile
index 528f80d563..fb5d2fb6f8 100644
--- a/examples/default/Makefile
+++ b/examples/default/Makefile
@@ -34,7 +34,7 @@ USEMODULE += ps
 # include and auto-initialize all available sensors
 USEMODULE += saul_default
 
-BOARD_PROVIDES_NETIF := acd52832 airfy-beacon b-l072z-lrwan1 cc2538dk fox \
+BOARD_PROVIDES_NETIF := acd52832 airfy-beacon atmega256rfr2-xpro b-l072z-lrwan1 cc2538dk fox \
         hamilton iotlab-m3 iotlab-a8-m3 lobaro-lorabox lsn50 mulle microbit msba2 \
         microduino-corerf native nrf51dk nrf51dongle nrf52dk nrf52840dk nrf52840-mdk nrf6310 \
         nucleo-f767zi openmote-b openmote-cc2538 pba-d-01-kw2x remote-pa remote-reva \
diff --git a/makefiles/tools/avrdude.inc.mk b/makefiles/tools/avrdude.inc.mk
index cac9aeeac4..3a218889aa 100644
--- a/makefiles/tools/avrdude.inc.mk
+++ b/makefiles/tools/avrdude.inc.mk
@@ -2,7 +2,8 @@ FLASHER = avrdude
 DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
 DEBUGSERVER_PORT = 4242
 DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
-DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
+DEBUGSERVER_INTERFACE ?=
+DEBUGSERVER_FLAGS = "-g -j usb $(DEBUGSERVER_INTERFACE) :$(DEBUGSERVER_PORT)"
 DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
 DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
 
diff --git a/tests/libfixmath_unittests/Makefile b/tests/libfixmath_unittests/Makefile
index d7670a148d..cda7ef5588 100644
--- a/tests/libfixmath_unittests/Makefile
+++ b/tests/libfixmath_unittests/Makefile
@@ -2,7 +2,8 @@ include ../Makefile.tests_common
 
 BOARD_BLACKLIST := arduino-duemilanove arduino-leonardo \
                    arduino-mega2560 arduino-nano arduino-uno \
-                   atmega328p mega-xplained microduino-corerf waspmote-pro
+                   atmega328p atmega256rfr2-xpro mega-xplained \
+                   microduino-corerf waspmote-pro
 # arduino-mega2560: builds locally but breaks travis (possibly because of
 # differences in the toolchain)
 # The MSP boards don't feature round(), exp(), and log(), which are used in the unittests
diff --git a/tests/pkg_libb2/Makefile.ci b/tests/pkg_libb2/Makefile.ci
index 8746e758e2..898f99323e 100644
--- a/tests/pkg_libb2/Makefile.ci
+++ b/tests/pkg_libb2/Makefile.ci
@@ -3,6 +3,7 @@ BOARD_INSUFFICIENT_MEMORY := \
     arduino-leonardo \
     arduino-nano \
     arduino-uno \
+    atmega256rfr2-xpro \
     atmega328p \
     chronos \
     mega-xplained \
diff --git a/tests/pkg_relic/Makefile b/tests/pkg_relic/Makefile
index 726e3e0a92..0d13d8887e 100644
--- a/tests/pkg_relic/Makefile
+++ b/tests/pkg_relic/Makefile
@@ -6,6 +6,7 @@ BOARD_BLACKLIST :=  arduino-duemilanove \
                     arduino-mega2560 \
                     arduino-nano \
                     arduino-uno \
+                    atmega256rfr2-xpro \
                     atmega328p \
                     chronos \
                     f4vi1 \
diff --git a/tests/pkg_tweetnacl/Makefile.ci b/tests/pkg_tweetnacl/Makefile.ci
index 90279652a7..ee2dd63316 100644
--- a/tests/pkg_tweetnacl/Makefile.ci
+++ b/tests/pkg_tweetnacl/Makefile.ci
@@ -4,6 +4,7 @@ BOARD_INSUFFICIENT_MEMORY := \
     arduino-mega2560 \
     arduino-nano \
     arduino-uno \
+    atmega256rfr2-xpro \
     atmega328p \
     mega-xplained \
     microduino-corerf \
diff --git a/tests/pthread_cooperation/Makefile.ci b/tests/pthread_cooperation/Makefile.ci
index e032327134..0ec3ff3842 100644
--- a/tests/pthread_cooperation/Makefile.ci
+++ b/tests/pthread_cooperation/Makefile.ci
@@ -4,6 +4,7 @@ BOARD_INSUFFICIENT_MEMORY := \
     arduino-mega2560 \
     arduino-nano \
     arduino-uno \
+    atmega256rfr2-xpro \
     atmega328p \
     hifive1 \
     hifive1b \
diff --git a/tests/sys_crypto/Makefile b/tests/sys_crypto/Makefile
index f679a834db..75616a82cc 100644
--- a/tests/sys_crypto/Makefile
+++ b/tests/sys_crypto/Makefile
@@ -6,6 +6,7 @@ BOARD_BLACKLIST += arduino-leonardo
 BOARD_BLACKLIST += arduino-mega2560
 BOARD_BLACKLIST += arduino-nano
 BOARD_BLACKLIST += arduino-uno
+BOARD_BLACKLIST += atmega256rfr2-xpro
 BOARD_BLACKLIST += atmega328p
 BOARD_BLACKLIST += chronos
 BOARD_BLACKLIST += mega-xplained
diff --git a/tests/unittests/Makefile.ci b/tests/unittests/Makefile.ci
index 20d478fe33..d2e0dc0391 100644
--- a/tests/unittests/Makefile.ci
+++ b/tests/unittests/Makefile.ci
@@ -9,6 +9,7 @@ BOARD_INSUFFICIENT_MEMORY := \
     arduino-mkrzero \
     arduino-nano \
     arduino-uno \
+    atmega256rfr2-xpro \
     atmega328p \
     arduino-zero \
     b-l072z-lrwan1 \