From b3f8576b48bc6b01dfbfdb1e7dc6a7ec28bf601b Mon Sep 17 00:00:00 2001
From: ladyada <limor@ladyada.net>
Date: Thu, 21 Jan 2016 18:31:21 -0500
Subject: [PATCH] must get temp before humidity or pressure in order to set
 t_fine

---
 Adafruit_BME280.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Adafruit_BME280.cpp b/Adafruit_BME280.cpp
index 725ec1a..38f8698 100644
--- a/Adafruit_BME280.cpp
+++ b/Adafruit_BME280.cpp
@@ -256,6 +256,8 @@ float Adafruit_BME280::readTemperature(void)
 float Adafruit_BME280::readPressure(void) {
   int64_t var1, var2, p;
 
+  readTemperature(); // must be done first to get t_fine
+
   int32_t adc_P = read16(BME280_REGISTER_PRESSUREDATA);
   adc_P <<= 8;
   adc_P |= read8(BME280_REGISTER_PRESSUREDATA+2);
@@ -289,6 +291,8 @@ float Adafruit_BME280::readPressure(void) {
 /**************************************************************************/
 float Adafruit_BME280::readHumidity(void) {
 
+  readTemperature(); // must be done first to get t_fine
+
   int32_t adc_H = read16(BME280_REGISTER_HUMIDDATA);
 
   int32_t v_x1_u32r;