diff --git a/software/hwio-raspberry/readI2Cpi.py b/software/hwio-raspberry/readI2Cpi.py
index a81456a..1a76db9 100644
--- a/software/hwio-raspberry/readI2Cpi.py
+++ b/software/hwio-raspberry/readI2Cpi.py
@@ -83,7 +83,7 @@
     # print(listIp)
     bus.write_i2c_block_data(address, 0x00, listIp)
   elif countCheckIP > 100:
-    countCheckIP=0
+    countCheckIP=-1
 
   countCheckIP = countCheckIP + 1