update readme.md (#5)

- update readme.md (badges)
- add changelog.md
- minor edits

Author: RobTillaart

AsyncAnalog.cpp

@@ -1,24 +1,15 @@
 //
 //    FILE: AsyncAnalog.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.5
+// VERSION: 0.1.6
 //    DATE: 2018-09-05
-// PURPOSE: async version of analogRead, prevent blocking wait
-//
-// backgrounder
-// https://www.avrfreaks.net/forum/tut-c-newbies-guide-avr-adc?name=PNphpBB2&file=viewtopic&t=56429
-//
-// HISTORY:
-//  0.1.0  2018-09-05  initial version, based upon analogRead()
-//  0.1.1  2020-03-26  minor refactor
-//  0.1.2  2020-05-27  update library.json
-//  0.1.3  2020-12-12  added Arduino CI, minor fixes
-//  0.1.4  2020-12-12  update Arduino CI, minor fixes
-//  0.1.5  2021-12-13  update library.json, license, readme
+// PURPOSE: Async version of analogRead, prevent blocking wait
+//     URL: https://github.com/RobTillaart/AsyncAnalog
 
 
 #include "AsyncAnalog.h"
 
+
 #if defined(ARDUINO_ARCH_AVR)
 
 AsyncAnalog::AsyncAnalog(const uint8_t pin)
@@ -60,17 +51,18 @@ bool AsyncAnalog::ready()
 
 int AsyncAnalog::value()
 {
-  // we have to read ADCL first; doing so locks both ADCL
-  // and ADCH until ADCH is read.  reading ADCL second would
-  // cause the results of each conversion to be discarded,
-  // as ADCL and ADCH would be locked when it completed.
-  int low  = ADCL;
-  int high = ADCH;
-  // combine the two bytes
-  return (high << 8) | low;
+  //  ADCL has to be read first.
+  //  Doing so locks both ADCL and ADCH until ADCH is read.
+  //  Reading ADCL second would cause the results of each conversion to
+  //  be discarded as ADCL and ADCH would be locked when it completed.
+  uint16_t lo = ADCL;
+  uint16_t hi = ADCH;
+  //  Combine two parts.
+  //  _lastValue = (hi * 256) + lo;
+  return (hi * 256) + lo;
 }
 
-#endif        // ARDUINO_ARCH_AVR
+#endif        //  ARDUINO_ARCH_AVR
 
 
-// -- END OF FILE --
+//  -- END OF FILE --

AsyncAnalog.h

@@ -2,27 +2,28 @@
 //
 //    FILE: AsyncAnalog.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.1.5
+// VERSION: 0.1.6
 //    DATE: 2018-09-05
-// PURPOSE: async version of analogRead for AVR
+// PURPOSE: Async version of analogRead for AVR
 //     URL: https://github.com/RobTillaart/AsyncAnalog
-//
 
 
 #if !defined(ARDUINO_ARCH_AVR)
 
   #error “AsyncAnalog library only supports boards with an AVR processor .”
-  
+
 #else
 
 // (ARDUINO_ARCH_SAM) future
+// (ARDUINO_ARCH_ESP32) future
+// (ARDUINO_ARCH_ESP8266) future
 
 
 #include "Arduino.h"
 #include "wiring_private.h"
 #include "pins_arduino.h"
 
-#define ASYNCANALOG_LIB_VERSION       (F("0.1.5"))
+#define ASYNCANALOG_LIB_VERSION       (F("0.1.6"))
 
 
 class AsyncAnalog
@@ -35,9 +36,11 @@ class AsyncAnalog
   int  value();
 
 private:
-  uint8_t _pin;
+  uint8_t  _pin;
+  //  uint16_t _lastValue;
 };
 
-#endif
+#endif  //  defined(ARDUINO_ARCH_AVR)
+
 
-// -- END OF FILE --
+//  -- END OF FILE --

CHANGELOG.md

@@ -0,0 +1,36 @@
+# Change Log AsyncAnalog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+
+## [0.1.6] - 2023-10-17
+- update readme.md
+- add changelog.md
+- minor edits
+
+
+## [0.1.5] - 2021-12-13
+- update library.json
+- update license
+- update readme.md
+
+## [0.1.4] - 2020-12-12
+- update Arduino CI
+- minor fixes
+
+## [0.1.3] - 2020-12-12
+- added Arduino CI
+- minor fixes
+
+## [0.1.2] - 2020-05-27
+- update library.json
+
+## [0.1.1] - 2020-03-26
+- minor refactor
+
+## [0.1.0] - 2018-09-05
+- initial version, based upon analogRead()
+

README.md

@@ -2,8 +2,11 @@
 [![Arduino CI](https://github.com/RobTillaart/AsyncAnalog/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/AsyncAnalog/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/AsyncAnalog/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/AsyncAnalog/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/AsyncAnalog/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/AsyncAnalog.svg)](https://github.com/RobTillaart/AsyncAnalog/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/AsyncAnalog/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/AsyncAnalog.svg?maxAge=3600)](https://github.com/RobTillaart/AsyncAnalog/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/AsyncAnalog.svg)](https://registry.platformio.org/libraries/robtillaart/AsyncAnalog)
 
 
 # AsyncAnalog
@@ -13,7 +16,7 @@ Arduino Library for async reading of an analogue pin. **\[AVR ONLY\]**.
 
 ## Description
 
-AsyncAnalog is a library to read the analogue port of an AVR in an asynchronous way.
+AsyncAnalog is a library to read the analogue port of an **AVR** in an asynchronous way.
 This means that the user must explicitly **start** the ADC, check if it is **ready**
 and read out its **value**.
 
@@ -22,13 +25,18 @@ By using this class, the user prevents the (~112 uSec) blocking of the
 
 The library works only for AVR boards now, other platforms might be supported in the future.
 
+**WARNING**
 As the UNO has only one ADC that is multiplexed, one can only read one analogue pin
 in async way simultaneously.
 
 **Use with care**
 
 
-## Interface 
+## Interface
+
+```cpp
+#include "AsynAnalog,h"
+```
 
 - **AsyncAnalog(uint8_t pin)** constructor, defines the analogue pin to use.
 - **void start()** triggers a new ADC reading.
@@ -44,12 +52,29 @@ over Serial at 115200 baud.
 
 ## Future
 
+#### Must
+
+#### Should
+
 - improve documentation.
+
+#### Could
+
 - investigate the performance gain.
-  - asyncAnalogTest2.ino is no good test.
+  - asyncAnalogTest2.ino is not a good test.
 - create examples
   - real world examples preferred.
 - investigate other platforms
 - fall back to normal analogRead for non AVR platforms ?
-- 
+  - better have specific code per platform.
+
+#### Wont
+
+## Support
+
+If you appreciate my libraries, you can support the development and maintenance.
+Improve the quality of the libraries by providing issues and Pull Requests, or
+donate through PayPal or GitHub sponsors.
+
+Thank you,
 

library.json

@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/AsyncAnalog.git"
   },
-  "version": "0.1.5",
+  "version": "0.1.6",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "AsyncAnalog.h"
 }

library.properties

@@ -1,5 +1,5 @@
 name=AsyncAnalog
-version=0.1.5
+version=0.1.6
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino Library for async reading of an analog pin