update GitHub actions + examples

.github/workflows/arduino-lint.yml

@@ -6,8 +6,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v4
-      - uses: arduino/arduino-lint-action@v1
+      - uses: actions/checkout@v6
+      - uses: arduino/arduino-lint-action@v2
         with:
           library-manager: update
           compliance: strict

.github/workflows/arduino_test_runner.yml

@@ -6,9 +6,8 @@ jobs:
   runTest:
     runs-on: ubuntu-latest
     timeout-minutes: 20
-
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.6

.github/workflows/jsoncheck.yml

@@ -5,13 +5,15 @@ on:
     paths:
       - '**.json'
   pull_request:
+    paths:
+      - '**.json'
 
 jobs:
   test:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: json-syntax-check
         uses: limitusus/json-syntax-check@v2
         with:

CHANGELOG.md

@@ -6,13 +6,17 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.4.3] - 2026-01-02
+- update GitHub actions
+- update examples
+- minor edits
+
 ## [0.4.2] - 2024-02-02
 - update readme.md
   - a.o. rewrite description, future section.
 - minor refactor examples
 - minor edits
 
-
 ## [0.4.1] - 2023-10-30
 - update readme.md (badges).
 - add performance test example (another).

FastMap.cpp

@@ -1,7 +1,7 @@
 //
 //    FILE: FastMap.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.4.2
+// VERSION: 0.4.3
 // PURPOSE: class with fast map function - library for Arduino
 //     URL: https://github.com/RobTillaart/FastMap
 

FastMap.h

@@ -2,14 +2,14 @@
 //
 //    FILE: FastMap.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.4.2
+// VERSION: 0.4.3
 // PURPOSE: class with fast map function - library for Arduino
 //     URL: https://github.com/RobTillaart/FastMap
 
 
 #include "Arduino.h"
 
-#define FASTMAP_LIB_VERSION           (F("0.4.2"))
+#define FASTMAP_LIB_VERSION           (F("0.4.3"))
 
 
 class FastMap

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2010-2024 Rob Tillaart
+Copyright (c) 2010-2026 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

README.md

@@ -46,7 +46,9 @@ This is to prevent NaN errors and **init()** will return false if such range is
 
 If the **init()** function is not called a 1 to 1 mapping is used.
 
-#### Related
+Feedback as always is welcome.
+
+### Related
 
 Other mapping libraries
 
@@ -56,6 +58,9 @@ Other mapping libraries
 - https://github.com/RobTillaart/moduloMap
 - https://github.com/RobTillaart/MultiMap
 
+Additional fast mapping investigated by brewmanz can be found here:
+- https://github.com/RobTillaart/FastMap/pull/9  
+
 
 ## Performance notes
 
@@ -92,7 +97,7 @@ Furthermore using double might imply a performance penalty on some platforms.
 #include "FastMap.h"
 ```
 
-#### Base
+### Base
 
 - **FastMap()** Constructor
 - **bool init(float in_min, float in_max, float out_min, float out_max)** defines the linear mapping parameters. 
@@ -106,7 +111,7 @@ If **init()** is not called the default is 1 to 1 mapping.
 - **float back(float value)** does the inverse mapping.
 
 
-#### Constrains
+### Constrains
 
 FastMap supports three versions of constraining the map function, based upon the parameters of **init()**.
 
@@ -130,7 +135,7 @@ Note that on most embedded platforms the performance of doubles is less than flo
 See below.
 
 
-#### boards supporting double
+### boards supporting double
 
 |  board         |  float  |  double  |
 |:---------------|:-------:|:--------:|
@@ -198,14 +203,16 @@ FM.init(in_min, in_max, 0.0, 100.0);
 
 #### Should
 
+- investigate exponential mapping: ```x -> alpha * beta^x```??
+  - gamma mapping, some curve from A->B
+
 
 #### Could
 
 - investigate map function for 64 bit integers.
 - investigate map function for complex numbers? / coordinates?
   - what does linear interpolation mean, map an input area upon an output area?
 - Template class?
-- investigate exponential mapping: ```x -> alpha * beta^x```??
 - do we need **constrainedBack()**? in three versions?
 
 #### Wont

examples/constrainedMapDemo/constrainedMapDemo.ino

@@ -13,6 +13,7 @@ FastMap mapper;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

examples/fastMapDemo/fastMapDemo.ino

@@ -20,6 +20,7 @@ FastMap mapper;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

examples/fastMapDemo2/fastMapDemo2.ino

@@ -14,6 +14,7 @@ FastMap FtoC;  //  Fahrenheit to Celsius
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

examples/fastMapDemo3/fastMapDemo3.ino

@@ -13,6 +13,7 @@ FastMap CtoF;  //  Celsius to Fahrenheit
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

examples/fastMapDemo4/fastMapDemo4.ino

@@ -20,6 +20,7 @@ FastMap mapper;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

examples/fastMapDouble/fastMapDouble.ino

@@ -21,6 +21,7 @@ FastMapDouble mapper;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("FASTMAP_LIB_VERSION: ");
   Serial.println(FASTMAP_LIB_VERSION);

library.json

@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/FastMap"
   },
-  "version": "0.4.2",
+  "version": "0.4.3",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",

library.properties

@@ -1,5 +1,5 @@
 name=FastMap
-version=0.4.2
+version=0.4.3
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Library with fast map function for Arduino.