Merge branch 'rht_conversion_fix' into 'master'

fixed the RH/T conversion constant

See merge request MSO-SW/drivers/raspberry-pi/raspberry-pi-i2c-scd4x!14

Author: quentin-cy

CHANGELOG.md

@@ -5,6 +5,10 @@ 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/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+- Fixed the RH/T conversion constant
 
 ## [0.2.2] - 2021-04-30
 

scd4x_i2c.c

@@ -91,8 +91,8 @@ int16_t scd4x_read_measurement(uint16_t* co2, float* temperature_deg_c,
     if (error) {
         return error;
     }
-    *temperature_deg_c = (float)temperature * 175.0f / 65536.0f - 45.0f;
-    *humidity_percent_rh = (float)humidity * 100.0f / 65536.0f;
+    *temperature_deg_c = (float)temperature * 175.0f / 65535.0f - 45.0f;
+    *humidity_percent_rh = (float)humidity * 100.0f / 65535.0f;
     return NO_ERROR;
 }