summaryrefslogtreecommitdiff
path: root/src/driver/lm75.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/driver/lm75.cc')
-rw-r--r--src/driver/lm75.cc30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/driver/lm75.cc b/src/driver/lm75.cc
new file mode 100644
index 0000000..0bad4a7
--- /dev/null
+++ b/src/driver/lm75.cc
@@ -0,0 +1,30 @@
+#include "driver/lm75.h"
+#include "driver/i2c.h"
+
+float LM75::getTemp()
+{
+ txbuf[0] = 0;
+ rxbuf[0] = 0;
+ rxbuf[1] = 0;
+ i2c.xmit(address, 1, txbuf, 2, rxbuf);
+
+ return rxbuf[0] + (rxbuf[1] / 256.0);
+}
+
+void LM75::setOS(unsigned char os)
+{
+ txbuf[0] = 0x03;
+ txbuf[1] = os;
+ txbuf[2] = 0;
+ i2c.xmit(address, 3, txbuf, 0, rxbuf);
+}
+
+void LM75::setHyst(unsigned char hyst)
+{
+ txbuf[0] = 0x02;
+ txbuf[1] = hyst;
+ txbuf[2] = 0;
+ i2c.xmit(address, 3, txbuf, 0, rxbuf);
+}
+
+LM75 lm75(0x48);