From 7b4e8c43304752e790c8cf74139c803b29b7b727 Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Tue, 2 Jan 2024 17:25:03 -0500
Subject: [PATCH] Ensure thermometer has a middle mark

---
 py/hexagram/thermo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/py/hexagram/thermo.py b/py/hexagram/thermo.py
index 64e17bb..e112ccb 100644
--- a/py/hexagram/thermo.py
+++ b/py/hexagram/thermo.py
@@ -38,7 +38,7 @@ class Thermometer(BottomDial):
         cr.set_line_width(6.0)
 
         level = self.min_value
-        incr  = (self.max_value - self.min_value) / 9
+        incr  = math.ceil((self.max_value - self.min_value) / 9)
 
         while level <= self.max_value:
             if level >= self.WARN_VALUE: