diff --git a/SPI.md b/SPI.md
index 868f942..62f58e1 100644
--- a/SPI.md
+++ b/SPI.md
@@ -38,6 +38,32 @@
 
 Команда: 0x04
 
+Символы:
+
+     " " - 0x20
+     "(" - 0x21
+     ")" - 0x22
+     "*" - 0x23
+     "+" - 0x24
+     "," - 0x25
+     "-" - 0x26
+     "." - 0x27
+     "/" - 0x28
+     "0" - 0x29
+     "1" - 0x2a
+     "2" - 0x2b
+     "3" - 0x2c
+     "4" - 0x2d
+     "5" - 0x2e
+     "6" - 0x2f
+     "7" - 0x30
+     "8" - 0x31
+     "9" - 0x32
+     ":" - 0x33
+     "<" - 0x34
+     "=" - 0x35
+     ">" - 0x36
+
 Параметры: символы - от 1 до 64
 
     0x01-0xFF, 0x01-0xFF ... 0x01-0xFF