direction commands updated to Up down RPM value

Dependencies:   MAX7219pot MCP23S17 mbed

Fork of POT_V_1_0 by Marine Electricals

Revision:
4:710464cb44fc
Parent:
3:ae45e29f5d4f
--- a/MAX7219.lib	Sat Jan 13 11:49:18 2018 +0000
+++ b/MAX7219.lib	Sat Apr 28 10:22:22 2018 +0000
@@ -1,1 +1,1 @@
-https://os.mbed.com/teams/Marine-Electricals/code/MAX7219pot/#779ee20a3759
+https://os.mbed.com/teams/Marine-Electricals/code/MAX7219pot/#c11c81a0d08f