0.2.0 HX711_MP

libraries/HX711_MP/.github/workflows/arduino-lint.yml

@@ -6,7 +6,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: arduino/arduino-lint-action@v1
         with:
           library-manager: update

libraries/HX711_MP/.github/workflows/arduino_test_runner.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.6

libraries/HX711_MP/.github/workflows/jsoncheck.yml

@@ -10,7 +10,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: json-syntax-check
         uses: limitusus/json-syntax-check@v1
         with:

libraries/HX711_MP/CHANGELOG..md

@@ -5,11 +5,17 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.2.0] - 2024-03-02
+- add fastProcessor option in **begin()** (Thanks to palmerr23)
+- updated license
+- updated GitHub/actions to v4
+
+----
+
 ## [0.1.1] - 2023-11-04
 - update readme.md
 - minor edits
 
-
 ## [0.1.0] - 2023-03-10
 - initial release
 - first version derived from 0.3.5 https://github.com/RobTillaart/HX711

libraries/HX711_MP/HX711_MP.cpp

@@ -1,7 +1,7 @@
 //
 //    FILE: HX711_MP.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.1
+// VERSION: 0.2.0
 // PURPOSE: Library for load cells for UNO
 //     URL: https://github.com/RobTillaart/HX711_MP
 //     URL: https://github.com/RobTillaart/HX711
@@ -25,13 +25,16 @@ HX711_MP::HX711_MP(uint8_t size)
 }
 
 
-HX711_MP::~HX711_MP() {}
+HX711_MP::~HX711_MP()
+{
+}
 
 
-void HX711_MP::begin(uint8_t dataPin, uint8_t clockPin)
+void HX711_MP::begin(uint8_t dataPin, uint8_t clockPin, bool fastProcessor )
 {
   _dataPin  = dataPin;
   _clockPin = clockPin;
+  _fastProcessor = fastProcessor;
 
   pinMode(_dataPin, INPUT);
   pinMode(_clockPin, OUTPUT);
@@ -140,7 +143,11 @@ float HX711_MP::read()
   {
     //  delayMicroSeconds(1) needed for fast processors?
     digitalWrite(_clockPin, HIGH);
+    if (_fastProcessor)
+        delayMicroseconds(1);
     digitalWrite(_clockPin, LOW);
+    if (_fastProcessor)
+        delayMicroseconds(1);
     m--;
   }
 
@@ -196,7 +203,7 @@ float HX711_MP::read_medavg(uint8_t times)
   }
   _insertSort(samples, times);
   float sum = 0;
-  // iterate over 1/4 to 3/4 of the array
+  //  iterate over 1/4 to 3/4 of the array
   uint8_t count = 0;
   uint8_t first = (times + 2) / 4;
   uint8_t last  = times - first - 1;
@@ -372,7 +379,7 @@ void HX711_MP::_insertSort(float * array, uint8_t size)
 //  see datasheet page 5 for timing
 uint8_t HX711_MP::_shiftIn()
 {
-  // local variables are faster.
+  //  local variables are faster.
   uint8_t clk   = _clockPin;
   uint8_t data  = _dataPin;
   uint8_t value = 0;
@@ -380,13 +387,15 @@ uint8_t HX711_MP::_shiftIn()
   while (mask > 0)
   {
     digitalWrite(clk, HIGH);
-    delayMicroseconds(1);   //  T2  >= 0.2 us
+    if(_fastProcessor)       //  T2  >= 0.2 us
+      delayMicroseconds(1);
     if (digitalRead(data) == HIGH)
     {
       value |= mask;
     }
     digitalWrite(clk, LOW);
-    delayMicroseconds(1);   //  keep duty cycle ~50%
+    if(_fastProcessor)
+      delayMicroseconds(1);   //  keep duty cycle ~50%
     mask >>= 1;
   }
   return value;

libraries/HX711_MP/HX711_MP.h

@@ -2,7 +2,7 @@
 //
 //    FILE: HX711_MP.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.1
+// VERSION: 0.2.0
 // PURPOSE: Library for load cells for Arduino
 //     URL: https://github.com/RobTillaart/HX711_MP
 //     URL: https://github.com/RobTillaart/HX711
@@ -14,7 +14,7 @@
 
 #include "Arduino.h"
 
-#define HX711_MP_LIB_VERSION               (F("0.1.1"))
+#define HX711_MP_LIB_VERSION               (F("0.2.0"))
 
 
 const uint8_t HX711_AVERAGE_MODE = 0x00;
@@ -30,7 +30,7 @@ const uint8_t HX711_RAW_MODE     = 0x04;
 
 
 //  supported values for set_gain()
-const uint8_t HX711_CHANNEL_A_GAIN_128 = 128;  // default
+const uint8_t HX711_CHANNEL_A_GAIN_128 = 128;  //  default
 const uint8_t HX711_CHANNEL_A_GAIN_64 = 64;
 const uint8_t HX711_CHANNEL_B_GAIN_32 = 32;
 
@@ -45,7 +45,7 @@ public:
   ~HX711_MP();
 
   //  fixed gain 128 for now
-  void     begin(uint8_t dataPin, uint8_t clockPin);
+  void     begin(uint8_t dataPin, uint8_t clockPin, bool fastProcessor = false);
 
   void     reset();
 
@@ -176,12 +176,12 @@ public:
 
 
 private:
-  uint8_t  _dataPin   = -1;
-  uint8_t  _clockPin  = -1;
+  uint8_t  _dataPin  = -1;
+  uint8_t  _clockPin = -1;
 
-  uint8_t  _gain      = 128;     //  default channel A
-  uint32_t _lastRead  = 0;
-  uint8_t  _mode      = HX711_AVERAGE_MODE;
+  uint8_t  _gain     = 128;     //  default channel A
+  uint32_t _lastRead = 0;
+  uint8_t  _mode     = HX711_AVERAGE_MODE;
 
   void     _insertSort(float * array, uint8_t size);
   uint8_t  _shiftIn();
@@ -191,6 +191,7 @@ private:
   float    _out[HX711_MP_MAX_SIZE];
   uint8_t  _size = HX711_MP_MAX_SIZE;
   float    _multiMap(float val);
+  bool     _fastProcessor = false;
 };
 
 

libraries/HX711_MP/LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019-2023 Rob Tillaart
+Copyright (c) 2019-2024 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

libraries/HX711_MP/README.md

@@ -90,7 +90,8 @@ is more math involved for converting raw data to weights.
 Parameter sets the size of for the calibration arrays. 
 Allowed range for size is 2..10.
 - **~HX711_MP()**
-- **void begin(uint8_t dataPin, uint8_t clockPin)** sets a fixed gain 128 for now.
+- **void begin(uint8_t dataPin, uint8_t clockPin, bool fastProcessor)** sets a fixed gain 128 for now.
+The fastProcessor option adds a 1 uS delay for each clock half-cycle to keep the time greater than 200 nS.
 - **void reset()** set internal state to start condition.
 Reset also does a power down / up cycle.
 It does not reset the calibration data.
@@ -244,8 +245,8 @@ Colour scheme wires of two devices.
 #### Temperature
 
 Load cells do have a temperature related error. (see datasheet load cell)
-This can be reduced by doing the calibration at the operational temperature 
-one uses for the measurements.
+This can be reduced by doing the calibration and take the tare
+at the operational temperature one uses for the measurements.
 
 Another way to handle this is to add a good temperature sensor
 (e.g. DS18B20, SHT85) and compensate for the temperature

libraries/HX711_MP/library.json

@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/HX711_MP"
   },
-  "version": "0.1.1",
+  "version": "0.2.0",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",

libraries/HX711_MP/library.properties

@@ -1,5 +1,5 @@
 name=HX711_MP
-version=0.1.1
+version=0.2.0
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for HX711 load cell amplifier.