Nakatafu ☆ / BME280

Use burst read for getXXXX: As mentioned at chapter “4 Data readout” in datasheet. Fixed getHumidity function (Used register 0xfd for hum_lsb in prev. The impact will be small.) Changed datasheet URL to new one (Rev.1.1)

Dependents:   Condensation_Monitor BLE_Condensation_Monitor

Fork of BME280 by Toyomasa Watarai

Files at this revision

API Documentation at this revision

Revision 4:ddcaa259e65b, committed 2015-05-12

Comitter:
takafuminaka
Date:
Tue May 12 13:32:09 2015 +0000
Parent:
3:d4eb81284ea0
Commit message:
* Changed data sheet URL to new one. (Ver.1.1); * Removed commented out statements.

Changed in this revision

BME280.cpp Show annotated file Show diff for this revision Revisions of this file
BME280.h Show annotated file Show diff for this revision Revisions of this file 
--- a/BME280.cpp	Tue May 12 12:07:25 2015 +0000
+++ b/BME280.cpp	Tue May 12 13:32:09 2015 +0000
@@ -9,7 +9,7 @@
  *    https://www.switch-science.com/catalog/2236/
  *
  *  For more information about the BME280:
- *    http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-09.pdf
+ *    http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-10.pdf
  */
 
 #include "mbed.h"
@@ -110,14 +110,6 @@
     i2c.write(address, cmd, 1);
     i2c.read(address, &cmd[1], 3);
  
-    //cmd[0] = 0xfb; // temp_lsb
-    //i2c.write(address, cmd, 1);
-    //i2c.read(address, &cmd[2], 1);
- 
-    //cmd[0] = 0xfc; // temp_xlsb
-    //i2c.write(address, cmd, 1);
-    //i2c.read(address, &cmd[3], 1);
- 
     temp_raw = (cmd[1] << 12) | (cmd[2] << 4) | (cmd[3] >> 4);
  
     int32_t temp;
@@ -143,14 +135,6 @@
     i2c.write(address, cmd, 1);
     i2c.read(address, &cmd[1], 3);
  
-    //cmd[0] = 0xf8; // press_lsb
-    //i2c.write(address, cmd, 1);
-    //i2c.read(address, &cmd[2], 1);
- 
-    //cmd[0] = 0xf9; // press_xlsb
-    //i2c.write(address, cmd, 1);
-    //i2c.read(address, &cmd[3], 1);
- 
     press_raw = (cmd[1] << 12) | (cmd[2] << 4) | (cmd[3] >> 4);
  
     int32_t var1, var2;
@@ -189,10 +173,6 @@
     i2c.write(address, cmd, 1);
     i2c.read(address, &cmd[1], 2);
  
-    //cmd[0] = 0xfe; // hum_lsb
-    //i2c.write(address, cmd, 1);
-    //i2c.read(address, &cmd[2], 1);
- 
     hum_raw = (cmd[1] << 8) | cmd[2];
  
     int32_t v_x1;

--- a/BME280.h	Tue May 12 12:07:25 2015 +0000
+++ b/BME280.h	Tue May 12 13:32:09 2015 +0000
@@ -9,7 +9,7 @@
  *    https://www.switch-science.com/catalog/2236/
  *
  *  For more information about the BME280:
- *    http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-09.pdf
+ *    http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-10.pdf
  */
  
 #ifndef MBED_BME280_H