[FIX] hw_escpos: define used variable

Oversight of #32079
2019-03-28 16:50:16 +01:00
parent 6814f27bbc
commit 14a8148e8d
1 changed files with 3 additions and 0 deletions
@@ -2,6 +2,9 @@

 """ ESC/POS Commands (Constants) """

+# Control characters
+ESC = '\x1b'
+
 # Feed control sequences
 CTL_LF    = '\x0a'             # Print and line feed
 CTL_FF    = '\x0c'             # Form feed