diff --git a/libraries/AtomicWeight/.github/FUNDING.yml b/libraries/AtomicWeight/.github/FUNDING.yml
index 90d9ab4c..2859c159 100644
--- a/libraries/AtomicWeight/.github/FUNDING.yml
+++ b/libraries/AtomicWeight/.github/FUNDING.yml
@@ -1,4 +1,5 @@
 # These are supported funding model platforms
 
-github: RobTillaart
+github: RobTillaart  
+custom: "https://www.paypal.me/robtillaart"
 
diff --git a/libraries/AtomicWeight/.github/workflows/arduino-lint.yml b/libraries/AtomicWeight/.github/workflows/arduino-lint.yml
index 8a26f14a..a7490f1d 100644
--- a/libraries/AtomicWeight/.github/workflows/arduino-lint.yml
+++ b/libraries/AtomicWeight/.github/workflows/arduino-lint.yml
@@ -1,12 +1,12 @@
-
 name: Arduino-lint
 
 on: [push, pull_request]
 jobs:
   lint:
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: arduino/arduino-lint-action@v1
         with:
           library-manager: update
diff --git a/libraries/AtomicWeight/.github/workflows/arduino_test_runner.yml b/libraries/AtomicWeight/.github/workflows/arduino_test_runner.yml
index fadfa904..dbd0ce79 100644
--- a/libraries/AtomicWeight/.github/workflows/arduino_test_runner.yml
+++ b/libraries/AtomicWeight/.github/workflows/arduino_test_runner.yml
@@ -1,4 +1,3 @@
----
 name: Arduino CI
 
 on: [push, pull_request]
@@ -6,9 +5,10 @@ on: [push, pull_request]
 jobs:
   runTest:
     runs-on: ubuntu-latest
+    timeout-minutes: 20
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.6
diff --git a/libraries/AtomicWeight/.github/workflows/jsoncheck.yml b/libraries/AtomicWeight/.github/workflows/jsoncheck.yml
index 37a11298..fd05f5f8 100644
--- a/libraries/AtomicWeight/.github/workflows/jsoncheck.yml
+++ b/libraries/AtomicWeight/.github/workflows/jsoncheck.yml
@@ -9,10 +9,11 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: json-syntax-check
-        uses: limitusus/json-syntax-check@v1
+        uses: limitusus/json-syntax-check@v2
         with:
           pattern: "\\.json$"
 
diff --git a/libraries/AtomicWeight/AtomicWeight.cpp b/libraries/AtomicWeight/AtomicWeight.cpp
index 742648d1..06715cfd 100644
--- a/libraries/AtomicWeight/AtomicWeight.cpp
+++ b/libraries/AtomicWeight/AtomicWeight.cpp
@@ -2,7 +2,7 @@
 //    FILE: AtomicWeight.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 2022-03-09
-// VERSION: 0.2.1
+// VERSION: 0.2.2
 // PURPOSE: Arduino library for atomic weights
 //     URL: https://github.com/RobTillaart/AtomicWeight
 
@@ -28,11 +28,11 @@ uint8_t PTOE::size()
 }
 
 
-char * PTOE::name(const uint8_t el)
+char * PTOE::name(const uint8_t element)
 {
   //  catch out of range.
-  if (el > _size) return NULL;
-  return elements[el].name;
+  if (element > _size) return NULL;
+  return elements[element].name;
 }
 
 
@@ -40,34 +40,34 @@ uint8_t PTOE::find(const char * abbrev)
 {
   //  case insensitive?
   //  caching?
-  //  param check?
-  //  uint8_t len = strlen(abbrev);
-  //  if ((len == 1) || (len == 2))
+  //  parameter check?
+  //  uint8_t length = strlen(abbrev);
+  //  if ((length == 1) || (length == 2) || (length == 3))
   //  {
   for (uint8_t i = 0; i < _size; i++)
   {
     if (strcmp(elements[i].name, abbrev) == 0) return i;
   }
   // }
-  return 255;
+  return 255;  //  out of range.
 }
 
 
-uint8_t PTOE::electrons(const uint8_t el)
+uint8_t PTOE::electrons(const uint8_t element)
 {
-  return el;
+  return element;
 }
 
 
-uint8_t PTOE::neutrons(const uint8_t el)
+uint8_t PTOE::neutrons(const uint8_t element)
 {
-  return round(weight(el)) - el;
+  return round(weight(element)) - element;
 }
 
 
-uint8_t PTOE::protons(const uint8_t el)
+uint8_t PTOE::protons(const uint8_t element)
 {
-  return el;
+  return element;
 }
 
 
@@ -75,10 +75,10 @@ uint8_t PTOE::protons(const uint8_t el)
 //
 //  WEIGHT
 //
-float PTOE::weight(const uint8_t el)
+float PTOE::weight(const uint8_t element)
 {
-  if (el > _size) return 0;  //  catch out of range.
-  return elements[el].weight * ATOMIC_WEIGHT_FACTOR;
+  if (element > _size) return 0;  //  catch out of range.
+  return elements[element].weight * ATOMIC_WEIGHT_FACTOR;
 }
 
 
@@ -147,7 +147,10 @@ uint8_t PTOE::splitElements(const char * formula)
     //  GET ELEMENT := [ Upper | Upper,lower ]
     elem[0] = 0;
     elem[1] = 0;
-    if (! isupper(*p)) return 0;  //  fail
+    if (! isupper(*p)) 
+    {
+      return 0;  //  fail
+    }
     elem[0] = *p;
     p++;
     if (islower(*p))
@@ -156,8 +159,8 @@ uint8_t PTOE::splitElements(const char * formula)
       p++;
     }
     //  FIND INDEX OF ELEMENT
-    int z = find(elem);
-    if (z == 255)
+    int index = find(elem);
+    if (index == 255)
     {
       return 0;  //  fail
     }
@@ -166,14 +169,14 @@ uint8_t PTOE::splitElements(const char * formula)
     bool found = false;
     for (int i = 0; i < count; i++)
     {
-      if (_splitList[i] == z)
+      if (_splitList[i] == index)
       {
         found = true;
       }
     }
     if ((found == false) && (count < ATOMIC_WEIGHT_MAX_SPLIT_LIST))
     {
-      _splitList[count] = z;
+      _splitList[count] = index;
       count++;
     }
   }
@@ -193,10 +196,13 @@ uint8_t PTOE::splitElements(const char * formula)
 }
 
 
-uint8_t PTOE::element(uint8_t el)
+uint8_t PTOE::element(uint8_t element)
 {
-  if (el >= _found) return 255;
-  return _splitList[el];
+  if (element >= _found)
+  {
+    return 255;  //  out of range
+  }
+  return _splitList[element];
 }
 
 
@@ -204,19 +210,19 @@ uint8_t PTOE::element(uint8_t el)
 //
 //  COUNT
 //
-uint32_t PTOE::count(const char * formula, const char * el)
+uint32_t PTOE::count(const char * formula, const char * element)
 {
   p = (char *)formula;
-  return _count('\0', el);
+  return _count('\0', element);
 }
 
 
-float PTOE::atomPercentage(const char * formula, const char * el)
+float PTOE::atomPercentage(const char * formula, const char * element)
 {
   float total = count(formula);
   if (total == 0) return 0;
   p = (char *)formula;
-  return 100.0 * _count('\0', el) / total;
+  return 100.0 * _count('\0', element) / total;
 }
 
 
@@ -234,14 +240,14 @@ float PTOE::weightFactor()
 //
 //  PRIVATE
 //
-float PTOE::_weight(const char sep, const char * abbrev)
+float PTOE::_weight(const char separator, const char * abbrev)
 {
   float sum = 0;
   float w   = 0;
   char elem[3] = { 0, 0, 0 };
   uint32_t count = 0;
 
-  while (*p != sep)
+  while (*p != separator)
   {
     w = 0;
     //  HANDLE GROUP  (...)
@@ -266,9 +272,9 @@ float PTOE::_weight(const char sep, const char * abbrev)
       //  can be optimized?
       if ((abbrev == NULL) || (strcmp(elem, abbrev) == 0))
       {
-        int z = find(elem);
-        if (z == 255) return 0;  //  fail
-        w = weight(z);
+        int index = find(elem);
+        if (index == 255) return 0;  //  fail
+        w = weight(index);
       }
     }
 
@@ -291,14 +297,14 @@ float PTOE::_weight(const char sep, const char * abbrev)
 }
 
 
-uint32_t PTOE::_count(const char sep, const char * abbrev)
+uint32_t PTOE::_count(const char separator, const char * abbrev)
 {
   uint32_t sum = 0;
   char elem[3] = { 0, 0, 0 };
   uint32_t count = 0;
   int w = 0;
 
-  while (*p != sep)
+  while (*p != separator)
   {
     //  HANDLE GROUP  (...)
     if (*p == '(')
@@ -323,8 +329,8 @@ uint32_t PTOE::_count(const char sep, const char * abbrev)
       //  can be optimized
       if ((abbrev == NULL) || (strcmp(elem, abbrev) == 0))
       {
-        int z = find(elem);
-        if (z == 255) return 0;  //  fail
+        int index = find(elem);
+        if (index == 255) return 0;  //  fail
         w = 1;
       }
     }
diff --git a/libraries/AtomicWeight/AtomicWeight.h b/libraries/AtomicWeight/AtomicWeight.h
index 218faeef..46b0e58a 100644
--- a/libraries/AtomicWeight/AtomicWeight.h
+++ b/libraries/AtomicWeight/AtomicWeight.h
@@ -3,7 +3,7 @@
 //    FILE: AtomicWeight.h
 //  AUTHOR: Rob Tillaart
 //    DATE: 2022-03-09
-// VERSION: 0.2.1
+// VERSION: 0.2.2
 // PURPOSE: Arduino library for atomic weights
 //     URL: https://github.com/RobTillaart/AtomicWeight
 
@@ -11,7 +11,7 @@
 #include "Arduino.h"
 
 
-#define ATOMIC_WEIGHT_LIB_VERSION         (F("0.2.1"))
+#define ATOMIC_WEIGHT_LIB_VERSION         (F("0.2.2"))
 
 
 #ifndef ATOMIC_WEIGHT_MAX_SPLIT_LIST
@@ -41,18 +41,18 @@ public:
 
 
   //  BASIC
-  char *  name(const uint8_t el);
+  char *  name(const uint8_t element);
   uint8_t find(const char * abbrev);
 
-  uint8_t electrons(const uint8_t el);
-  uint8_t neutrons(const uint8_t el);
-  uint8_t protons(const uint8_t el);
+  uint8_t electrons(const uint8_t element);
+  uint8_t neutrons(const uint8_t element);
+  uint8_t protons(const uint8_t element);
 
 
   //  WEIGHT of one atom
-  float   weight(const uint8_t el);
-  //  if (el != NULL) weights one element in a formula, e.g el == "H"
-  //  if (el == NULL) weights the whole formula
+  float   weight(const uint8_t element);
+  //  if (element != NULL) weights one element in a formula, e.g element == "H"
+  //  if (element == NULL) weights the whole formula
   float   weight(const char * formula, const char * abbrev = NULL);
   //  mass percentage of one element in a formula.
   float   massPercentage(const char * formula, const char * abbrev);
@@ -65,15 +65,15 @@ public:
 
   //  SPLIT FORMULA IN ELEMENTS
   uint8_t splitElements(const char * formula);
-  uint8_t element(uint8_t el);
+  uint8_t element(uint8_t element);
 
 
   //  COUNT
-  //  if (el != NULL) count atoms of one element in a formula, e.g el == "H"
-  //  if (el == NULL) count all atoms in the whole formula
-  uint32_t count(const char * formula, const char * el = NULL);
+  //  if (element != NULL) count atoms of one element in a formula, e.g element == "H"
+  //  if (element == NULL) count all atoms in the whole formula
+  uint32_t count(const char * formula, const char * element = NULL);
   //  atom percentage of one element in a formula.
-  float   atomPercentage(const char * formula, const char * el);
+  float   atomPercentage(const char * formula, const char * element);
 
 
   //  DEBUG
@@ -83,9 +83,9 @@ public:
 private:
   uint8_t     _size;
 
-  //  if (el == NULL) ==> whole weight otherwise only of element.
-  float       _weight(char sep, const char * abbrev);
-  uint32_t    _count(const char sep, const char * abbrev);
+  //  if (element == NULL) ==> whole weight otherwise only of element.
+  float       _weight(char separator, const char * abbrev);
+  uint32_t    _count(const char separator, const char * abbrev);
   char        *p;  //  for _weight() and _count()
 
   //  for splitElements
diff --git a/libraries/AtomicWeight/CHANGELOG.md b/libraries/AtomicWeight/CHANGELOG.md
index ac4197d3..7cfa4148 100644
--- a/libraries/AtomicWeight/CHANGELOG.md
+++ b/libraries/AtomicWeight/CHANGELOG.md
@@ -6,10 +6,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.2.2] - 2024-04-07
+- update GitHub actions
+- refactor internal names for readability
+- minor edits
+
 ## [0.2.1] - 2023-10-17
 - update readme.md
 
-
 ## [0.2.0] - 2023-04-15
 - use new weight factor 201.3868 to reduce maximum relative error
 - create **elements_uint16.h** file.
diff --git a/libraries/AtomicWeight/LICENSE b/libraries/AtomicWeight/LICENSE
index 7ff52579..3f2859b6 100644
--- a/libraries/AtomicWeight/LICENSE
+++ b/libraries/AtomicWeight/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2022-2023 Rob Tillaart
+Copyright (c) 2022-2024 Rob Tillaart
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/libraries/AtomicWeight/README.md b/libraries/AtomicWeight/README.md
index 50635f8f..e779e6fa 100644
--- a/libraries/AtomicWeight/README.md
+++ b/libraries/AtomicWeight/README.md
@@ -262,6 +262,8 @@ minimize the memory used for the elements mass lookup table.
 
 - improve documentation
   - reorganize.
+- float => double 
+- EV is at the end of range float...
 
 
 #### Should
@@ -271,7 +273,7 @@ minimize the memory used for the elements mass lookup table.
   - **uint32_t neutrons(formula)** uses protons()
   - **uint32_t electrons(formula)** uses protons()
 - add weight of electron as constant. for completeness.
-- functions around **AVOGADRO**, **DALTON** etc
+- functions around **AVOGADRO**, **DALTON** etc.
   - **float weightEV(formula)**
   - **float dalton2EV(float Dalton)** to express mass in eV.
   - **float dalton2Joule(float Dalton)**
@@ -285,16 +287,18 @@ minimize the memory used for the elements mass lookup table.
 - look for optimizations
   - 3x almost same parser
   - PROGMEM ?
-- state table
-  - liquid, gas, solid, unknown  (2 bits per element) = ~30 bytes
-  - room temperature + sea level pressure
-  - separate file like elements_name.h
 - performance **find()**
   - alphabetical array? tree? 
   - ==> more memory...
 - support \[] square brackets too.
   - (NH4)2\[Pt(SCN)6]
+
+
 - add a derived class PERIODIC_TABLE?
+- state table
+  - liquid, gas, solid, unknown  (2 bits per element) = ~30 bytes
+  - room temperature + sea level pressure
+  - separate file like elements_name.h
 
 
 #### Wont (unless)
diff --git a/libraries/AtomicWeight/examples/atomic_count_atomPercentage/atomic_count_atomPercentage.ino b/libraries/AtomicWeight/examples/atomic_count_atomPercentage/atomic_count_atomPercentage.ino
index 282e2c8d..ce8f8f51 100644
--- a/libraries/AtomicWeight/examples/atomic_count_atomPercentage/atomic_count_atomPercentage.ino
+++ b/libraries/AtomicWeight/examples/atomic_count_atomPercentage/atomic_count_atomPercentage.ino
@@ -14,9 +14,9 @@ char formula0[24] = "C6H6O6";
 char formula1[24] = "((COH)3)2";
 char formula2[24] = "H2SO4";
 char formula3[24] = "CuO2";
-// char formula4[24] = "(COH)3(COH)2COH";
-// char formula4[24] = "(CH)6O6";
-char formula4[24] = "xH2";  // fails => 0;
+char formula4[24] = "(COH)3(COH)2COH";
+char formula5[24] = "(CH)6O6";
+char formula6[24] = "xH2";           //  fails => 0;
 
 
 
@@ -85,6 +85,14 @@ void setup()
   Serial.print(" \t H \t");
   Serial.println(ptoe.atomPercentage(formula4, "H"));
 
+  Serial.print(formula5);
+  Serial.print(" \t H \t");
+  Serial.println(ptoe.atomPercentage(formula5, "O"));
+
+  Serial.print(formula6);
+  Serial.print(" \t H \t");
+  Serial.println(ptoe.atomPercentage(formula6, "H"));
+
 }
 
 
diff --git a/libraries/AtomicWeight/examples/atomic_count_split/atomic_count_split.ino b/libraries/AtomicWeight/examples/atomic_count_split/atomic_count_split.ino
index c096cc91..2a0b3382 100644
--- a/libraries/AtomicWeight/examples/atomic_count_split/atomic_count_split.ino
+++ b/libraries/AtomicWeight/examples/atomic_count_split/atomic_count_split.ino
@@ -14,7 +14,7 @@ PTOE ptoe;
 
 char formula0[24] = "C6H6O6";               //  Benzenehexol
 char formula1[24] = "Al2Si2O5(OH)4";        //  kaolin
-char formula2[24] = "H2SO4";                //  sulpheric acid
+char formula2[24] = "H2SO4";                //  sulphuric acid
 char formula3[24] = "CuO2";                 //  CopperOxide
 char formula4[24] = "(COH)3(COH)2COH";      //  fake
 // char formula4[24] = "(CH)6O6";           //  fake
diff --git a/libraries/AtomicWeight/examples/atomic_weight_formula/atomic_weight_formula.ino b/libraries/AtomicWeight/examples/atomic_weight_formula/atomic_weight_formula.ino
index 89a88813..503f2ccc 100644
--- a/libraries/AtomicWeight/examples/atomic_weight_formula/atomic_weight_formula.ino
+++ b/libraries/AtomicWeight/examples/atomic_weight_formula/atomic_weight_formula.ino
@@ -14,9 +14,9 @@ char formula0[24] = "C6H6O6";
 char formula1[24] = "((COH)3)2";
 char formula2[24] = "H2SO4";
 char formula3[24] = "CuO2";
-// char formula4[24] = "(COH)3(COH)2COH";
-// char formula4[24] = "(CH)6O6";
-char formula4[24] = "xH2";  // fails => 0;
+char formula4[24] = "(COH)3(COH)2COH";
+char formula5[24] = "(CH)6O6";
+char formula6[24] = "xH2";        //  fails => 0;
 
 
 void setup()
@@ -62,15 +62,23 @@ void setup()
   Serial.print(formula4);
   Serial.print(" \t");
   Serial.println(ptoe.weight(formula4));
-  
+
+  Serial.print(formula5);
+  Serial.print(" \t");
+  Serial.println(ptoe.weight(formula5));
+
+  Serial.print(formula6);
+  Serial.print(" \t");
+  Serial.println(ptoe.weight(formula6));
+
   Serial.print("()");
   Serial.print(" \t");
   Serial.println(ptoe.weight("()"));
-  
+
   Serial.print("(H2O)");
   Serial.print(" \t");
   Serial.println(ptoe.weight("(H2O)"));
- 
+
   Serial.print("(H2O)255");
   Serial.print(" \t");
   Serial.println(ptoe.weight("(H2O)255"));
diff --git a/libraries/AtomicWeight/examples/atomic_weight_massPercentage/atomic_weight_massPercentage.ino b/libraries/AtomicWeight/examples/atomic_weight_massPercentage/atomic_weight_massPercentage.ino
index f38bfa1a..7db6daf8 100644
--- a/libraries/AtomicWeight/examples/atomic_weight_massPercentage/atomic_weight_massPercentage.ino
+++ b/libraries/AtomicWeight/examples/atomic_weight_massPercentage/atomic_weight_massPercentage.ino
@@ -14,9 +14,9 @@ char formula0[24] = "C6H6O6";
 char formula1[24] = "((COH)3)2";
 char formula2[24] = "H2SO4";
 char formula3[24] = "CuO2";
-// char formula4[24] = "(COH)3(COH)2COH";
-// char formula4[24] = "(CH)6O6";
-char formula4[24] = "xH2";  // fails => 0;
+char formula4[24] = "(COH)3(COH)2COH";
+char formula5[24] = "(CH)6O6";
+char formula6[24] = "xH2";         //  fails => 0;
 
 
 
@@ -69,6 +69,14 @@ void setup()
   Serial.print(" \t H \t");
   Serial.println(ptoe.massPercentage(formula4, "H"));
 
+  Serial.print(formula5);
+  Serial.print(" \t H \t");
+  Serial.println(ptoe.massPercentage(formula5, "H"));
+
+  Serial.print(formula6);
+  Serial.print(" \t H \t");
+  Serial.println(ptoe.massPercentage(formula6, "H"));
+
 }
 
 
diff --git a/libraries/AtomicWeight/examples/atomic_weight_massPercentage/output_0.2.2.txt b/libraries/AtomicWeight/examples/atomic_weight_massPercentage/output_0.2.2.txt
new file mode 100644
index 00000000..88bab914
--- /dev/null
+++ b/libraries/AtomicWeight/examples/atomic_weight_massPercentage/output_0.2.2.txt
@@ -0,0 +1,16 @@
+ATOMIC_WEIGHT_LIB_VERSION: 0.2.2
+
+form.	elem.	perc.
+
+C 	 C 	100.00
+C6 	 C 	100.00
+He6 	 C 	0.00
+NaCl 	 Na 	39.34
+NaCl 	 Cl 	60.66
+C6H6O6 	 H 	3.47
+((COH)3)2 	 H 	3.47
+H2SO4 	 H 	2.06
+CuO2 	 H 	0.00
+(COH)3(COH)2COH 	 H 	3.47
+(CH)6O6 	 H 	3.47
+xH2 	 H 	0.00
diff --git a/libraries/AtomicWeight/examples/atomic_weight_print/.arduino-ci.yml b/libraries/AtomicWeight/examples/atomic_weight_print/.arduino-ci.yml
index 25b1f13a..80069fcd 100644
--- a/libraries/AtomicWeight/examples/atomic_weight_print/.arduino-ci.yml
+++ b/libraries/AtomicWeight/examples/atomic_weight_print/.arduino-ci.yml
@@ -14,9 +14,9 @@ packages:
     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
+  #  Choosing to run compilation tests on 2 different Arduino platforms
   platforms:
-    # - uno
+    # - uno    #  memory usage is HIGH for this lib
     # - due
     # - zero
     # - leonardo
diff --git a/libraries/AtomicWeight/examples/generate_uint16_table/generate_uint16_table.ino b/libraries/AtomicWeight/examples/generate_uint16_table/generate_uint16_table.ino
index 0e82cd53..dccd4f97 100644
--- a/libraries/AtomicWeight/examples/generate_uint16_table/generate_uint16_table.ino
+++ b/libraries/AtomicWeight/examples/generate_uint16_table/generate_uint16_table.ino
@@ -14,7 +14,7 @@
 //  0.1.x     222.909   based op mapping max range 65535 == weight(118)
 //  0.2.x     201.3868  searched for minimal relative error.
 
-// const float WEIGHT_FACTOR = 222.909;
+//  const float WEIGHT_FACTOR = 222.909;
 const float WEIGHT_FACTOR = 201.3868;
 
 
diff --git a/libraries/AtomicWeight/library.json b/libraries/AtomicWeight/library.json
index ca6fb49a..25de37de 100644
--- a/libraries/AtomicWeight/library.json
+++ b/libraries/AtomicWeight/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/AtomicWeight.git"
   },
-  "version": "0.2.1",
+  "version": "0.2.2",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/AtomicWeight/library.properties b/libraries/AtomicWeight/library.properties
index 8f468c7f..f83a0570 100644
--- a/libraries/AtomicWeight/library.properties
+++ b/libraries/AtomicWeight/library.properties
@@ -1,5 +1,5 @@
 name=AtomicWeight
-version=0.2.1
+version=0.2.2
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for atomic weights, calculate massPercentage of elements in a formula.