fix error which causes pressure to be off by factor 2.56

el-han · el-han · commit 6acf82ef0c24 · 2020-05-03T06:28:26.000+02:00
diff --git a/Adafruit_BME280.cpp b/Adafruit_BME280.cpp
@@ -455,9 +455,9 @@ float Adafruit_BME280::readPressure(void) {
   var2 = (((int64_t)_bme280_calib.dig_P8) * var4) / 524288;
   var4 = ((var4 + var1 + var2) / 256) + (((int64_t)_bme280_calib.dig_P7) * 16);
 
-  uint32_t P = (uint32_t)(((var4 / 2) * 100) / 128);
+  float P = var4 / 256.0;
 
-  return (float)P / 256;
+  return P;
 }
 
 /*!

Original file line number	Diff line number	Diff line change
`@@ -455,9 +455,9 @@ float Adafruit_BME280::readPressure(void) {`
`455`	`455`	`var2 = (((int64_t)_bme280_calib.dig_P8) * var4) / 524288;`
`456`	`456`	`var4 = ((var4 + var1 + var2) / 256) + (((int64_t)_bme280_calib.dig_P7) * 16);`
`457`	`457`
`458`		`- uint32_t P = (uint32_t)(((var4 / 2) * 100) / 128);`
	`458`	`+ float P = var4 / 256.0;`
`459`	`459`
`460`		`- return (float)P / 256;`
	`460`	`+ return P;`
`461`	`461`	`}`
`462`	`462`
`463`	`463`	`/*!`