0.3.3 pressure

Author: RobTillaart

libraries/pressure/.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@v5
+      - uses: arduino/arduino-lint-action@v2
         with:
           library-manager: update
           compliance: strict

libraries/pressure/.github/workflows/arduino_test_runner.yml

@@ -8,7 +8,7 @@ jobs:
     timeout-minutes: 20
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.6

libraries/pressure/.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@v5
       - name: json-syntax-check
         uses: limitusus/json-syntax-check@v2
         with:

libraries/pressure/CHANGELOG.md

@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.3.2] - 2025-11-26
+- add setKGCM2() + getKGCM2()
+- update GitHub actions
+- minor edits
+
 ## [0.3.2] - 2024-10-27
 - fix #7, improve gas law functions
 - add conversion factor functions

libraries/pressure/LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021-2024 Rob Tillaart
+Copyright (c) 2021-2025 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

libraries/pressure/README.md

@@ -31,10 +31,17 @@ than in a single conversion step as there are two multiplications involved.
 
 Note: constants need to be verified.
 
+As always, feedback is welcome.
+
 
 ### Related
 
-- https://github.com/RobTillaart/temperature (a bit)
+- https://github.com/RobTillaart/pressure - pressure conversions
+- https://github.com/RobTillaart/Temperature - temperature conversions 
+- https://github.com/RobTillaart/MS5837 - temperature pressure sensor  (incl pressure to altitude)
+- https://github.com/RobTillaart/MS5611 - temperature pressure sensor  (incl pressure to altitude)
+- https://github.com/RobTillaart/MSP300 - industrial pressure transducer
+- https://swharden.com/blog/2017-04-29-precision-pressure-meter-project/
 
 
 ## Interface
@@ -62,7 +69,7 @@ Note: constants need to be verified.
 - **void setCmHg(float value)** sets pressure in centimetre mercury.
 - **void setCmH2O(float value)** sets pressure in centimetre water.
 - **void setMSW(float value)** sets pressure in Meters of Sea Water. (under water pressure unit).
-
+- **void setKGCM2(float value)** sets pressure in Kg per square cm.
 
 ### Getters
 
@@ -78,7 +85,7 @@ Note: constants need to be verified.
 - **float getCmHg()** returns pressure in centimetre mercury.
 - **float getCmH2O()** returns pressure in centimetre water.
 - **float getMSW()** returns pressure in Meters of Sea Water. (under water pressure unit).
-
+- **float getKGCM2()** returns pressure in Kg per square cm.
 
 ### Gas law, applied
 

libraries/pressure/examples/pressure_demo/pressure_demo.ino

@@ -14,9 +14,11 @@ pressure P;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("PRESSURE_LIB_VERSION: ");
   Serial.println(PRESSURE_LIB_VERSION);
+  Serial.println();
 
   // convert one pressure to 12 output units.
   P.setMilliBar(1019.1);
@@ -33,11 +35,12 @@ void setup()
   Serial.print("CmHg: \t");    Serial.println(P.getCmHg(),3);
   Serial.print("CMH20: \t");   Serial.println(P.getCmH2O(),3);
   Serial.print("MSW: \t");     Serial.println(P.getMSW(),3);
+  Serial.print("KGCM2: \t");   Serial.println(P.getKGCM2(),3);
 }
 
 void loop()
 {
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --

libraries/pressure/examples/pressure_gas_law/pressure_gas_law.ino

@@ -14,6 +14,7 @@ pressure P;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("PRESSURE_LIB_VERSION: ");
   Serial.println(PRESSURE_LIB_VERSION);
@@ -64,4 +65,4 @@ void loop()
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --

libraries/pressure/examples/pressure_gas_law_table/pressure_gas_law_table.ino

@@ -15,6 +15,7 @@ float pressure = 1019.1;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("PRESSURE_LIB_VERSION: ");
   Serial.println(PRESSURE_LIB_VERSION);
@@ -28,6 +29,8 @@ void setup()
     Serial.print("\t");
     Serial.println(1019.1 * P.factorTemperatureKelvin(25, t), 3);
   }
+  
+  Serial.println("\ndone...");
 
 }
 

libraries/pressure/examples/pressure_specific/pressure_specific.ino

@@ -19,9 +19,11 @@ volatile float value = 1.234;
 void setup()
 {
   Serial.begin(115200);
+  Serial.println();
   Serial.println(__FILE__);
   Serial.print("PRESSURE_LIB_VERSION: ");
   Serial.println(PRESSURE_LIB_VERSION);
+  Serial.println();
 
   start = micros();
   for (int i = 0; i < 1000; i++)
@@ -39,7 +41,7 @@ void setup()
   start = micros();
   for (int i = 0; i < 1000; i++)
   {
-    x = PSI2MSW(value);
+    x = psi2msw(value);
   }
   stop = micros();
   Serial.print("TIME:\t");
@@ -66,11 +68,14 @@ void loop()
 {
 }
 
-inline float PSI2MSW(float value)
+//
+//  dedicated conversion
+#define PSI2MSW (PSI2MILLIBAR * MILLIBAR2MSW)
+
+inline float psi2msw(float value)
 {
-  return value * (PSI2MILLIBAR * MILLIBAR2MSW);
+  return value * PSI2MSW;
 }
 
 
-// -- END OF FILE --
-
+//  -- END OF FILE --