added hex_value and hex_char functions
forgot dim
first attempt at dump_config
fixed issue where dimmer timer would cause incoming data corruption
should use memset not free
redefined commands to use 6-bit values
correctly set lightA and B status text
added flush method
fixed read byte errors
fixed invalid declaration line
set 0 at end of string
added proc_req method to process a request
fixed typos
increased buffer size
clearer error reporting
added string.h include
flush buffer before reading
added code to validate bin_cmd
process txt_cmd