Delta / AM1805_DEMO

Demo the function of RTC module AM1805

Dependencies:   mbed-dev

Fork of I2C_HelloWorld_Mbed by mbed official

Files at this revision

API Documentation at this revision

Revision 0:f76c26307f9a, committed 2013-02-14

Comitter:
mbed_official
Date:
Thu Feb 14 17:24:48 2013 +0000
Child:
1:c45df8c46fa8
Commit message:
I2C HelloWorld

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Feb 14 17:24:48 2013 +0000
@@ -0,0 +1,25 @@
+#include "mbed.h"
+ 
+// Read temperature from LM75BD
+
+I2C i2c(p28, p27);
+
+const int addr = 0x90;
+
+int main() {
+    char cmd[2];
+    while (1) {
+        cmd[0] = 0x01;
+        cmd[1] = 0x00;
+        i2c.write(addr, cmd, 2);
+ 
+        wait(0.5);
+ 
+        cmd[0] = 0x00;
+        i2c.write(addr, cmd, 1);
+        i2c.read(addr, cmd, 2);
+ 
+        float tmp = (float((cmd[0]<<8)|cmd[1]) / 256.0);
+        printf("Temp = %.2f\n", tmp);
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Feb 14 17:24:48 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/0954ebd79f59
\ No newline at end of file