Update README.md

README.md

@@ -1,2 +1,20 @@
 # CVReader
- Reads DCC cvs from loco on prog track
+Don't be fooled by the name, this chunk of code is an almost complete replacement for DCC++ with the added feature of WiThrottle support WITHOUT a JMRI server.
+
+This repo is acting as a prototyping area for features being built into the DCC-EX CommandStation.
+
+Unlike DCC++ the code here is more cleanly structured and so is easier to maintain and expand. It runs in less memory than DCC++ and uses less interrupts and timers to achieve a more reliable DCC signal. You will not find a PacketRegister file with a bizarre mix of string parsing, packet building, queue managing, timer fiddling and hardware pins all mashed into one over-complex class. 
+
+
+
+It has an API interface to the DCC commands that can be used by your own bespoke sketch.
+This API is actually used by the JMRI command parser and the WiThrottle command parser. 
+The CVReader.ino sketch provides an example of setting this up with Wifi and JMRI command parsing.
+
+In addition, program track operations requiring ACK responses do not cause blocking of the Arduino loop() and so will not hold up throttle requests.
+Loco Functions F0-F12 will issue reminders automatically.
+There is a much higher register limit (ie more locos) in the same memory. 
+You can also create your own commands or filter out commands sent by JMRI to suit your own layout.
+  
+
+