diff --git a/README.md b/README.md
index 19539fa..fcef2ab 100644
--- a/README.md
+++ b/README.md
@@ -13,38 +13,52 @@ Currently a simple serial control protocol is implemented, while full KISS TNC f
 
 Here's how to control the APRS modem over a serial connection. The modem accepts a variety of commands for setting options and sending packets. Generally a command starts with one or more characters defining the command, and then whatever data is needed to set the options for that command. Here's a list of the currently available commands:
 
-### Sending data
-!\<message\>      = send text packet
 
-### Setting callsigns
-c\<callsign\>     = set your callsign (default NOCALL)
+##Serial commands
 
-d\<callsign\>     = set destination callsign (default APZMDM)
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | &nbsp;
+--- | :---
+__!<data>__  | Send raw packet
+__@<cmt>__ | Send location update (cmt = optional comment)
+__#<msg>__ | Send APRS message
+&nbsp; | &nbsp;
+__c<call>__ |  Set your callsign
+__d<call>__ |  Set destination callsign
+__1<call>__ |  Set PATH1 callsign
+__2<call>__ |  Set PATH2 callsign
+&nbsp; | &nbsp;
+__sc<ssid>__ | Set your SSID
+__sd<ssid>__ | Set destination SSID
+__s1<ssid>__ | Set PATH1 SSID
+__s2<ssid>__ | Set PATH2 SSID
+&nbsp; | &nbsp;
+__lla<LAT>__ | Set latitude (NMEA-format, eg 4903.50N)
+__llo<LON>__ | Set latitude (NMEA-format, eg 07201.75W)
+__lp<0-9>__  | Set TX power info
+__lh<0-9>__  | Set antenna height info
+__lg<0-9>__  | Set antenna gain info
+__ld<0-9>__  | Set antenna directivity info
+__ls<sym>__  | Select symbol
+__lt<s/a>__  | Select symbol table (standard/alternate)
+&nbsp; | &nbsp;
+__mc<call>__ | Set message recipient callsign
+__ms<ssid>__ | Set message recipient SSID
+__mr<ssid>__ | Retry last message
+__ma<1/0>__  | Automatic message ACK on/off
+&nbsp; |&nbsp;
+__ps<1/0>__  | Print SRC on/off
+__pd<1/0>__  | Print DST on/off
+__pp<1/0>__  | Print PATH on/off
+__pm<1/0>__  | Print DATA on/off
+__pi<1/0>__  | Print INFO on/off
+__v<1/0>__ | Verbose mode on/off
+__V<1/0>__ | Silent mode on/off
+&nbsp; | &nbsp;
+__S__ | Save configuration
+__L__ | Load configuration
+__C__ | Clear configuration
+__H__ | Print configuration
 
-1\<callsign\>     = set first path via (default WIDE1)
-
-2\<callsign\>     = set second path via (default WIDE2)
-
-
-sc\<SSID\>        = set your ssid (default 0)
-
-sd\<SSID\>        = set destination ssid (default 0)
-
-s1\<SSID\>        = set first path via ssid (default 1)
-
-s2\<SSID\>        = set second path via ssid (default 2)
-
-
-### Setting serial output options
-ps\<1/0\>         = turn on/off printing SRC (example "ps0" to turn off, "ps1" to turn on)
-
-pd\<1/0\>         = turn on/off printing DST
-
-pp\<1/0\>         = turn on/off printing path
-
-pm\<1/0\>         = turn on/off printing data
-
-pi\<1/0\>         = turn on/off printing info
 
 
 ### Examples