Vladimir Akopyan / BME280 Featured

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Fork of BME280 by Toyomasa Watarai

Diff: BME280.cpp

Revision:
5:3eb4c6c38dc4
Parent:
4:ddcaa259e65b
Child:
6:2f87adc3e6b7
diff -r ddcaa259e65b -r 3eb4c6c38dc4 BME280.cpp
--- a/BME280.cpp	Tue May 12 13:32:09 2015 +0000
+++ b/BME280.cpp	Fri Dec 30 03:13:46 2016 +0000
@@ -107,9 +107,12 @@
     char cmd[4];
  
     cmd[0] = 0xfa; // temp_msb
-    i2c.write(address, cmd, 1);
-    i2c.read(address, &cmd[1], 3);
- 
+    int writeResult = i2c.write(address, cmd, 1);
+    int readResult = i2c.read(address, &cmd[1], 3);
+    
+    if(writeResult != 0 || readResult != 0)
+        return -10000000; 
+         
     temp_raw = (cmd[1] << 12) | (cmd[2] << 4) | (cmd[3] >> 4);
  
     int32_t temp;
@@ -132,8 +135,11 @@
     char cmd[4];
  
     cmd[0] = 0xf7; // press_msb
-    i2c.write(address, cmd, 1);
-    i2c.read(address, &cmd[1], 3);
+    int writeResult = i2c.write(address, cmd, 1);
+    int readResult = i2c.read(address, &cmd[1], 3);
+    
+    if(writeResult != 0 || readResult != 0)
+        return -10000000; 
  
     press_raw = (cmd[1] << 12) | (cmd[2] << 4) | (cmd[3] >> 4);
  
@@ -170,8 +176,11 @@
     char cmd[4];
  
     cmd[0] = 0xfd; // hum_msb
-    i2c.write(address, cmd, 1);
-    i2c.read(address, &cmd[1], 2);
+    int writeResult = i2c.write(address, cmd, 1);
+    int readResult = i2c.read(address, &cmd[1], 2);
+    
+    if(writeResult != 0 || readResult != 0)
+        return -10000000; 
  
     hum_raw = (cmd[1] << 8) | cmd[2];