diff --git a/README.rst b/README.rst
index b15ac36..2382724 100644
--- a/README.rst
+++ b/README.rst
@@ -134,41 +134,41 @@ Pin Layout
 
 The following table shows the typical pin layout used:
 
-+-----------+----------+---------------------------------------------------------------+--------------------------+
-|           | PCD      | Arduino                                                       | Teensy                   |
-|           +----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-|           | MFRC522  | Uno / 101   | Mega    | Nano v3 |Leonardo / Micro | Pro Micro | 2.0    | ++ 2.0 | 3.1    |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-| Signal    | Pin      | Pin         | Pin     | Pin     | Pin             | Pin       | Pin    | Pin    | Pin    |
-+===========+==========+=============+=========+=========+=================+===========+========+========+========+
-| RST/Reset | RST      | 9 [1]_      | 5 [1]_  | D9      | RESET / ICSP-5  | RST       | 7      | 4      | 9      |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-| SPI SS    | SDA [3]_ | 10 [2]_     | 53 [2]_ | D10     | 10              | 10        | 0      | 20     | 10     |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-| SPI MOSI  | MOSI     | 11 / ICSP-4 | 51      | D11     | ICSP-4          | 16        | 2      | 22     | 11     |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-| SPI MISO  | MISO     | 12 / ICSP-1 | 50      | D12     | ICSP-1          | 14        | 3      | 23     | 12     |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
-| SPI SCK   | SCK      | 13 / ICSP-3 | 52      | D13     | ICSP-3          | 15        | 1      | 21     | 13     |
-+-----------+----------+-------------+---------+---------+-----------------+-----------+--------+--------+--------+
++-----------+----------+-----------------------------------------------------------------------------------+
+|           | PCD      |                                      Arduino                                      |
+|           +----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+|           | MFRC522  | Uno / 101   | Mega    | Nano v3 |Leonardo / Micro | Pro Micro | Yun [4]_| Due     |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+| Signal    | Pin      | Pin         | Pin     | Pin     | Pin             | Pin       | Pin     | Pin     |
++===========+==========+=============+=========+=========+=================+===========+=========+=========+
+| RST/Reset | RST      | 9 [1]_      | 5 [1]_  | D9      | RESET / ICSP-5  | RST       | Pin9    | 22 [1]_ |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+| SPI SS    | SDA [3]_ | 10 [2]_     | 53 [2]_ | D10     | 10              | 10        | Pin10   | 23 [2]_ |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+| SPI MOSI  | MOSI     | 11 / ICSP-4 | 51      | D11     | ICSP-4          | 16        | ICSP4   | SPI-4   |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+| SPI MISO  | MISO     | 12 / ICSP-1 | 50      | D12     | ICSP-1          | 14        | ICSP1   | SPI-1   |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
+| SPI SCK   | SCK      | 13 / ICSP-3 | 52      | D13     | ICSP-3          | 15        | ICSP3   | SPI-3   |
++-----------+----------+-------------+---------+---------+-----------------+-----------+---------+---------+
 
-+-----------+---------------+---------+
-|           | ESP8266       | Arduino |
-|           +---------------+---------+
-|           | Wemos D1 mini | Yun [4]_|
-+-----------+---------------+---------+
-| Signal    | Pin           | Pin     |
-+===========+===============+=========+
-| RST/Reset | D3            | Pin9    |
-+-----------+---------------+---------+
-| SPI SS    | D8            | Pin10   |
-+-----------+---------------+---------+
-| SPI MOSI  | D7            | ICSP4   |
-+-----------+---------------+---------+
-| SPI MISO  | D6            | ICSP1   |
-+-----------+---------------+---------+
-| SPI SCK   | D5            | ICSP3   |
-+-----------+---------------+---------+
++-----------+---------------+--------------------------+
+|           | ESP8266       | Teensy                   |
+|           +---------------+--------+--------+--------+
+|           | Wemos D1 mini | 2.0    | ++ 2.0 | 3.1    |
++-----------+---------------+--------+--------+--------+
+| Signal    | Pin           | Pin    | Pin    | Pin    |
++===========+===============+========+========+========+
+| RST/Reset | D3            | 7      | 4      | 9      |
++-----------+---------------+--------+--------+--------+
+| SPI SS    | D8            | 0      | 20     | 10     |
++-----------+---------------+--------+--------+--------+
+| SPI MOSI  | D7            | 2      | 22     | 11     |
++-----------+---------------+--------+--------+--------+
+| SPI MISO  | D6            | 3      | 23     | 12     |
++-----------+---------------+--------+--------+--------+
+| SPI SCK   | D5            | 1      | 21     | 13     |
++-----------+---------------+--------+--------+--------+
 
 .. [1] Configurable, typically defined as RST_PIN in sketch/program.
 .. [2] Configurable, typically defined as SS_PIN in sketch/program.
diff --git a/library.json b/library.json
index 4a32474..ee9e9d0 100644
--- a/library.json
+++ b/library.json
@@ -11,5 +11,5 @@
   },
   "exclude": "doc",
   "frameworks": "arduino",
-  "platforms": ["atmelavr", "ststm32", "espressif8266", "espressif32", "samd"]
+  "platforms": ["atmelavr", "atmelsam", "ststm32", "espressif8266", "espressif32", "samd"]
 }
diff --git a/library.properties b/library.properties
index 1c0c14b..1e11ce3 100644
--- a/library.properties
+++ b/library.properties
@@ -6,4 +6,4 @@ sentence=Arduino RFID Library for MFRC522 (SPI)
 paragraph=Read/Write a RFID Card or Tag using the ISO/IEC 14443A/MIFARE interface.
 category=Communication
 url=https://github.com/miguelbalboa/rfid
-architectures=avr,megaavr,STM32F1,teensy,esp8266,esp32,samd
+architectures=avr,megaavr,STM32F1,teensy,esp8266,esp32,samd,atmelsam