update readme.md COMP_POLARITY (#77)

- Fix #76, update readme.md Comparator Polarity
- added defines to replace magic numbers (not used in code yet)
- minor edits

Author: RobTillaart

ADS1X15.cpp

@@ -1,7 +1,7 @@
 //
 //    FILE: ADS1X15.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.4.3
+// VERSION: 0.4.4
 //    DATE: 2013-03-24
 // PURPOSE: Arduino library for ADS1015 and ADS1115
 //     URL: https://github.com/RobTillaart/ADS1X15
@@ -24,7 +24,7 @@
 
 //  CONFIG REGISTER
 
-//  BIT 15      Operational Status           // 1 << 15
+//  BIT 15      Operational Status           //  1 << 15
 #define ADS1X15_OS_BUSY             0x0000
 #define ADS1X15_OS_NOT_BUSY         0x8000
 #define ADS1X15_OS_START_SINGLE     0x8000
@@ -53,7 +53,7 @@
 #define ADS1X15_MODE_CONTINUE       0x0000
 #define ADS1X15_MODE_SINGLE         0x0100
 
-//  BIT 5-7     data rate sample per second  // (0..7) << 5
+//  BIT 5-7     data rate sample per second  //  (0..7) << 5
 /*
 differs for different devices, check datasheet or readme.md
 
@@ -69,26 +69,26 @@ differs for different devices, check datasheet or readme.md
 |     7       |   3300    |    860    |  fastest  |
 */
 
-//  BIT 4 comparator modi                    // 1 << 4
+//  BIT 4 comparator modi                    //  1 << 4
 #define ADS1X15_COMP_MODE_TRADITIONAL   0x0000
 #define ADS1X15_COMP_MODE_WINDOW        0x0010
 
-//  BIT 3 ALERT active value                 // 1 << 3
+//  BIT 3 ALERT active value                 //  1 << 3
 #define ADS1X15_COMP_POL_ACTIV_LOW      0x0000
 #define ADS1X15_COMP_POL_ACTIV_HIGH     0x0008
 
-//  BIT 2 ALERT latching                     // 1 << 2
+//  BIT 2 ALERT latching                     //  1 << 2
 #define ADS1X15_COMP_NON_LATCH          0x0000
 #define ADS1X15_COMP_LATCH              0x0004
 
-//  BIT 0-1 ALERT mode                       // (0..3)
+//  BIT 0-1 ALERT mode                       //  (0..3)
 #define ADS1X15_COMP_QUE_1_CONV         0x0000  //  trigger alert after 1 convert
 #define ADS1X15_COMP_QUE_2_CONV         0x0001  //  trigger alert after 2 converts
 #define ADS1X15_COMP_QUE_4_CONV         0x0002  //  trigger alert after 4 converts
 #define ADS1X15_COMP_QUE_NONE           0x0003  //  disable comparator
 
 
-// _CONFIG masks
+//  _CONFIG masks
 //
 //  |  bit  |  description           |
 //  |:-----:|:-----------------------|
@@ -131,7 +131,7 @@ void ADS1X15::reset()
   setMode(1);      //  _mode = ADS1X15_MODE_SINGLE;
   setDataRate(4);  //  middle speed, depends on device.
 
-  //  COMPARATOR variables   # see notes .h
+  //  COMPARATOR variables   #  see notes .h
   _compMode       = 0;
   _compPol        = 1;
   _compLatch      = 0;
@@ -423,7 +423,7 @@ void ADS1X15::setWireClock(uint32_t clockSpeed)
 //  TODO: get the real clock speed from the I2C interface if possible.
 uint32_t ADS1X15::getWireClock()
 {
-// UNO 328 and
+//  UNO 328 and
 #if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
   uint32_t speed = F_CPU / ((TWBR * 2) + 16);
   return speed;

ADS1X15.h

@@ -2,7 +2,7 @@
 //
 //    FILE: ADS1X15.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.4.3
+// VERSION: 0.4.4
 //    DATE: 2013-03-24
 // PURPOSE: Arduino library for ADS1015 and ADS1115
 //     URL: https://github.com/RobTillaart/ADS1X15
@@ -12,7 +12,7 @@
 #include "Arduino.h"
 #include "Wire.h"
 
-#define ADS1X15_LIB_VERSION               (F("0.4.3"))
+#define ADS1X15_LIB_VERSION               (F("0.4.4"))
 
 //  allow compile time default address
 //  address in { 0x48, 0x49, 0x4A, 0x4B }, no test...
@@ -31,6 +31,26 @@
 #define ADS1X15_INVALID_MODE              0xFE
 
 
+//  PARAMETER CONSTANTS NOT USED IN CODE YET
+//  enum ?
+#define ADS1X15_GAIN_6144MV               0x00
+#define ADS1X15_GAIN_4096MV               0x01
+#define ADS1X15_GAIN_2048MV               0x02
+#define ADS1X15_GAIN_1024MV               0x04
+#define ADS1X15_GAIN_0512MV               0x08
+#define ADS1X15_GAIN_0256MV               0x10
+
+#define ADS1x15_COMP_MODE_TRADITIONAL     0x00
+#define ADS1x15_COMP_MODE_WINDOW          0x01
+
+#define ADS1x15_COMP_POL_FALLING_EDGE     0x00
+#define ADS1x15_COMP_POL_RISING_EDGE      0x01
+
+#define ADS1x15_COMP_POL_LATCH            0x00
+#define ADS1x15_COMP_POL_NOLATCH          0x01
+
+
+
 class ADS1X15
 {
 public:
@@ -56,7 +76,7 @@ class ADS1X15
 
 
   //  0  =  CONTINUOUS
-  //  1  =  SINGLE      default
+  //  1  =  SINGLE       default
   void     setMode(uint8_t mode = 1);    //  invalid values are mapped to 1 (default)
   uint8_t  getMode();                    //  0xFE == invalid mode error.
 

CHANGELOG.md

@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.4.4] - 2024-06-28
+- Fix #76, update readme.md Comparator Polarity
+- added defines to replace magic numbers (not used in code yet)
+- minor edits
+
 ## [0.4.3] - 2024-06-25
 - Fix #74, ALERT/RDY pin documentation
 - update readme.md