Initial
This is the arduino code used in 2013 up to converting to SGL code
Fixed a few issues.  Changed revsperstep to be 200 and made sure that the delays on both sides of the step are the same
Changes to increase speed with buttons
Try to make the EPROM code recognise button moves
Might want to increase speed for long moves as well
Fixed a close bracket error
 **  June 15 2014
 Included commands c rpm  sets rpm and
 and
 d delay_mult for fast moves ( can be used to slow down the fast moves ) 1 is fast 8 is the same as the slowdown speeds)
 Both are saved in eeprom

 ** also fixed a few bits where comparisons were between int and unsigned ints

 Fixed the step pulse width and delay between pulses where the slow (long delay) pulses were not really slow because of overflow in the delayto microseconds call
 Changed it to delay  (in milliseconds) not as accurate but not important
Fixed eeprom read and write with set rpm and set fas_delay_mult
Merge branch 'master' of https://github.com/LaurieY/LYFocuser_Arduino