0.1.6 AsyncAnalog

2024-10-03 18:09:02 -04:00 · 2023-10-17 19:46:28 +02:00 · 2023-10-17 19:46:28 +02:00 · f0f6fe32a1
commit f0f6fe32a1
parent 0ef1346f56
6 changed files with 94 additions and 38 deletions
--- a/libraries/AsyncAnalog/AsyncAnalog.cpp
+++ b/libraries/AsyncAnalog/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 --
--- a/libraries/AsyncAnalog/AsyncAnalog.h
+++ b/libraries/AsyncAnalog/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 @@ public:
  int  value();

 private:
-  uint8_t _pin;
+  uint8_t  _pin;
+  //  uint16_t _lastValue;
 };

-#endif
+#endif  //  defined(ARDUINO_ARCH_AVR)

-// -- END OF FILE --
+
+//  -- END OF FILE --
--- a/libraries/AsyncAnalog/CHANGELOG.md
+++ b/libraries/AsyncAnalog/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()
+
--- a/libraries/AsyncAnalog/README.md
+++ b/libraries/AsyncAnalog/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,

--- a/libraries/AsyncAnalog/library.json
+++ b/libraries/AsyncAnalog/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"
 }
--- a/libraries/AsyncAnalog/library.properties
+++ b/libraries/AsyncAnalog/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