Fix trouble calculating return values with decimal places (#5)

marcelstoer · Aug 31, 2016 · 95b4b23 · 95b4b23
2 parents 5922641 + fe51cd5
commit 95b4b23
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/max7219.lua b/max7219.lua
@@ -142,8 +142,8 @@ local function commit()
   --    ...
   --    module: 3 register: 8 data: 0
   for i = 1, numberOfColumns do
-    local module = ((i - 1) / 8) + 1
-    local register = ((i - 1) % 8) + 1
+    local module = math.floor(((i - 1) / 8) + 1)
+    local register = math.floor(((i - 1) % 8) + 1)
     sendByte(module, register, columns[i])
   end
 end