[GreenKeys] Model 28 ticker notes

[Peter Gottlieb]

John W1AN sent me this link:
https://forum.arduino.cc/t/ascii-to-6-bit-lookup-table/387455

I had not seen that and simultaneously realized the character positions 
in the type block are not in any standard order.

Before I realized that I rearranged the standard model 28 type block 
into an ordered one for the ticker which has letters in two rows and 
figures in the other two rows.  Since I have to print upside down due to 
the differences in the chirality of the fonts between standard and 
ticker, I also have the interesting problem of printing in backwards 
order.  So if I want to print ABCD I have to send DCBA to the printer 
and also send the value (also in reverse order) before that.  With a 
microprocessor sending data this is not a big deal.

I sent a string of increasing codes (0 through 63) to the printer and 
have remaining problems (see attached):
1)  The print spacing is very uneven
2)  Repeating characters, such as the 1

Next step will be to try and send characters to match mechanical movement...
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