chore: Update CHANGELOG

Signed-off-by: Rahix <rahix@rahix.de>

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
+### Added
+- Pause mode in ECG-App
+- `bin` field in metatdata for an alternate entrypoint
+- API-call for direct light-sensor readout: `epic_light_sensor_read`
+
+### Changed
+- No longer require locking the display for setting the backlight.
 
 
 ## [v1.7] - 2019-08-24 21:48 - [Garlic]

Documentation/pycardium/light-sensor.rst

@@ -25,3 +25,13 @@ be fairly stable.
 .. py:function:: stop()
 
    Stop the ADC.
+
+.. py:function:: read()
+
+   Direct readout of the light-sensor.
+
+   Use this function for low latency readout.  The time between polls can have
+   an effect on the values measures.  If you do not need low latency, prefer
+   :py:func:`light_sensor.get_reading`.
+
+   .. versionadded:: 1.8

epicardium/epicardium.h

@@ -1401,9 +1401,15 @@ API(API_LIGHT_SENSOR_GET, int epic_light_sensor_get(uint16_t* value));
 API(API_LIGHT_SENSOR_STOP, int epic_light_sensor_stop());
 
 /**
- * Get the light level directly. Each call has an intrinsic delay of about 240us, I recommend another 100-300us delay via utime.sleep_ms() between calls. Whether or not the IR LED is fast enough is another issue.
+ * Get the light level directly.
+ *
+ * Each call has an intrinsic delay of about 240us, I recommend another
+ * 100-300us delay  between calls. Whether or not the IR LED is fast enough is
+ * another issue.
  *
  * :return: Light level
+ *
+ * .. versionadded:: 1.8
  */
 API(API_LIGHT_SENSOR_READ, uint16_t epic_light_sensor_read(void));