Increased measurement time for Hydros21

Signed-off-by: Sara Damiano <sdamiano@stroudcenter.org>
EnviroDIY · May 2, 2022 · 8526b7e · 8526b7e
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diff --git a/ChangeLog.md b/ChangeLog.md
@@ -21,6 +21,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ***
 
 
+## [0.33.3]
+
+### Fixed
+- Increased measurement time for Hydros21 to work with the latest version of the sensor.
+***
+
+
 ## [0.33.2]
 
 ### Fixed
@@ -740,7 +747,8 @@ Our first release of the modular sensors library to support easily logging data
 
 ***
 
-[Unreleased]: https://github.com/EnviroDIY/ModularSensors/compare/v0.33.2...HEAD
+[Unreleased]: https://github.com/EnviroDIY/ModularSensors/compare/v0.33.3...HEAD
+[0.33.3]: https://github.com/EnviroDIY/ModularSensors/releases/tag/v0.33.3
 [0.33.2]: https://github.com/EnviroDIY/ModularSensors/releases/tag/v0.33.2
 [0.33.1]: https://github.com/EnviroDIY/ModularSensors/releases/tag/v0.33.1
 [0.33.0]: https://github.com/EnviroDIY/ModularSensors/releases/tag/v0.33.0

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-0.33.2
+0.33.3
diff --git a/docs/Doxyfile b/docs/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = ModularSensors
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.33.2
+PROJECT_NUMBER         = 0.33.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

diff --git a/library.json b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "EnviroDIY_ModularSensors",
-  "version": "0.33.2",
+  "version": "0.33.3",
   "description": "A library that allows access to multiple sensors through a unified interface.  This allows the user to simply access many sensors to log the data or send the data to data repositories like the EnviroDIY data portal.",
   "keywords": "modular, sensor, sensors, datalogger, logger, low power, sleeping, EnviroDIY, ModularSensors, Mayfly, WikiWatershed, Monitor My Watershed, ThingSpeak",
   "platforms": "atmelavr, atmelsam",

diff --git a/library.properties b/library.properties
@@ -1,5 +1,5 @@
 name=ModularSensors
-version=0.33.2
+version=0.33.3
 author=Sara Damiano <sdamiano@stroudcenter.org>, Shannon Hicks <shicks@stroudcenter.org>
 maintainer=Sara Damiano <sdamiano@stroudcenter.org>
 sentence=A library that allows access to multiple sensors through a unified interface.

diff --git a/src/ModularSensors.h b/src/ModularSensors.h
@@ -14,7 +14,7 @@
 /**
  * @brief The current library version number
  */
-#define MODULAR_SENSORS_VERSION "0.33.2"
+#define MODULAR_SENSORS_VERSION "0.33.3"
 
 // To get all of the base classes for ModularSensors, include LoggerBase.
 // NOTE:  Individual sensor definitions must be included separately.

diff --git a/src/sensors/MeterHydros21.h b/src/sensors/MeterHydros21.h
@@ -92,8 +92,19 @@
 /// @brief Sensor::_stabilizationTime_ms; the Hydros 21 is stable as soon as it
 /// warms up (0ms stabilization).
 #define HYDROS21_STABILIZATION_TIME_MS 0
-/// @brief Sensor::_measurementTime_ms; maximum measurement duration: 500ms.
-#define HYDROS21_MEASUREMENT_TIME_MS 500
+/**
+ * @brief Sensor::_measurementTime_ms; maximum measurement duration: 1000ms.
+ *
+ * @note Older versions of the Hydro took less time (~500ms) to take a
+ * measurement, but the current version, as of 5/2/2022, takes a full second
+ * (1000ms) to consistently give results in concurrent measurement mode.
+ * Somewhat strangely, it does give results in ~450ms when operated
+ * non-concurrently. Depending on how many sensors you have, you may have faster
+ * results by forcing non-concurrent operation with the newest versions of the
+ * Hydros21. To do this compile with the [build flag](@ref sdi12_group_flags)
+ * `-D MS_SDI12_NON_CONCURRENT`.
+ */
+#define HYDROS21_MEASUREMENT_TIME_MS 1000
 /// @brief Extra wake time required for an SDI-12 sensor between the "break"
 /// and the time the command is sent.  The Hydros 21 requires no extra time.
 #define HYDROS21_EXTRA_WAKE_TIME_MS 0