diff --git a/libraries/SIMON/.arduino-ci.yml b/libraries/SIMON/.arduino-ci.yml
new file mode 100644
index 00000000..b4ab412d
--- /dev/null
+++ b/libraries/SIMON/.arduino-ci.yml
@@ -0,0 +1,27 @@
+platforms:
+  rpipico:
+    board: rp2040:rp2040:rpipico
+    package: rp2040:rp2040
+    gcc:
+      features:
+      defines:
+        - ARDUINO_ARCH_RP2040
+      warnings:
+      flags:
+
+packages:
+  rp2040:rp2040:
+    url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+
+compile:
+  # Choosing to run compilation tests on 2 different Arduino platforms
+  platforms:
+    - uno
+    # - due
+    # - zero
+    # - leonardo
+    - m4
+    - esp32
+    - esp8266
+    # - mega2560
+    - rpipico
diff --git a/libraries/SIMON/CHANGELOG.md b/libraries/SIMON/CHANGELOG.md
new file mode 100644
index 00000000..6f5f4ff2
--- /dev/null
+++ b/libraries/SIMON/CHANGELOG.md
@@ -0,0 +1,16 @@
+# Change Log SIMON
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+
+## [0.1.1] - 2022-11-24
+- Add RP2040 support to build-CI.
+- Add CHANGELOG.md
+
+
+## [0.1.0] - 2022-05-26
+- initial version
+
diff --git a/libraries/SIMON/library.json b/libraries/SIMON/library.json
index 360aa65c..39e11d91 100644
--- a/libraries/SIMON/library.json
+++ b/libraries/SIMON/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/SIMON"
   },
-  "version": "0.1.0",
+  "version": "0.1.1",
   "license": "MIT",
   "frameworks": "arduino",
   "platforms": "*",
diff --git a/libraries/SIMON/library.properties b/libraries/SIMON/library.properties
index 11f759bc..2d254786 100644
--- a/libraries/SIMON/library.properties
+++ b/libraries/SIMON/library.properties
@@ -1,5 +1,5 @@
 name=SIMON
-version=0.1.0
+version=0.1.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library to build the "Simon says" game or a digital lock.
diff --git a/libraries/SIMON/simon.cpp b/libraries/SIMON/simon.cpp
index b50ab552..fcd11f3b 100644
--- a/libraries/SIMON/simon.cpp
+++ b/libraries/SIMON/simon.cpp
@@ -2,12 +2,9 @@
 //    FILE: simon.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 2022-05-26
-// VERSION: 0.1.0
+// VERSION: 0.1.1
 // PURPOSE: Arduino library for SIMON
 //     URL: https://github.com/RobTillaart/SIMON
-//
-// HISTORY:
-// 0.1.0    2022-05-26  initial version
 
 
 #include "simon.h"
@@ -115,5 +112,5 @@ uint8_t SIMON::maxSize()
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --
 
diff --git a/libraries/SIMON/simon.h b/libraries/SIMON/simon.h
index 577a45f7..9914746f 100644
--- a/libraries/SIMON/simon.h
+++ b/libraries/SIMON/simon.h
@@ -3,17 +3,18 @@
 //    FILE: simon.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 2022-05-26
-// VERSION: 0.1.0
+// VERSION: 0.1.1
 // PURPOSE: Arduino library for SIMON
 //     URL: https://github.com/RobTillaart/SIMON
 
 
 #include "Arduino.h"
 
-#define SIMON_LIB_VERSION        (F("0.1.0"))
+#define SIMON_LIB_VERSION        (F("0.1.1"))
 
 #define SIMON_MAXSIZE             10
 
+
 class SIMON
 {
 public:
diff --git a/libraries/SIMON/test/unit_test_001.cpp b/libraries/SIMON/test/unit_test_001.cpp
index 756e5a53..b2217b86 100644
--- a/libraries/SIMON/test/unit_test_001.cpp
+++ b/libraries/SIMON/test/unit_test_001.cpp
@@ -46,6 +46,12 @@ unittest_teardown()
 }
 
 
+unittest(test_constants)
+{
+  assertEqual(10, SIMON_MAXSIZE);
+}
+
+
 unittest(test_constructor)
 {
   SIMON simon;