diff --git a/lambda/lambda.c b/lambda/lambda.c
index e5f6c93..ecbf103 100644
--- a/lambda/lambda.c
+++ b/lambda/lambda.c
@@ -6,7 +6,6 @@
  *
  * TODO comments, attribution
  * TODO DIDR?
- * TODO How to round integer divisions half up?
  * TODO string.h?
  */
 #include <math.h>
diff --git a/lambda/sensors.c b/lambda/sensors.c
index 3a1cafc..db18e12 100644
--- a/lambda/sensors.c
+++ b/lambda/sensors.c
@@ -80,7 +80,7 @@
 }
 
 int16_t toTempI(int16_t mV) {
-	int temp = mV / 5;
+	int temp = (mV + 3) / 5;
 
 	return temp;
 }
@@ -106,10 +106,10 @@
 		}
 	}
 
-	int32_t diffVoltage = table[i + 1].mV - table[i].mV;
-	int32_t diffValue = table[i + 1].value - table[i].value;
+	int16_t diffVoltage = table[i + 1].mV - table[i].mV;
+	int16_t diffValue = table[i + 1].value - table[i].value;
 	int16_t value = table[i].value +
-			(((mV - table[i].mV) * (diffValue << 10) / diffVoltage) >> 10);
+			((int32_t)(mV - table[i].mV) * diffValue / diffVoltage);
 
 	return value;
 }