The 26 lowercase letters a-z, and the 10 digits 0-9, all use the official canonical morse code patterns.
For details, see the Wikipedia article at https://en.wikipedia.org/wiki/Morse_code
To make a letter uppercase, enter the pattern for "x" ( - . . - ) followed immediately by the pattern for the letter you want to enter as uppercase.
Example: Lowercase "x" has the pattern "- . . -", so UPPERCASE "X" would be entered as the digraph XX (- . . - - . . -)
You can also prepend "X" to the digits 0..9 to obtain the character
you'd get by shifting the digit's key on a US English PC keyboard.
(don't worry,
there are better/easier ways to enter them... these patterns exist only
because some people might find them easier to remember).
| Character | PC keyboard | digraph | pattern |
|---|---|---|---|
| ! | shift + 1 | X1 | - . . - . - - - - |
| @ | shift + 2 | X2 | - . . - . . - - - |
| # | shift + 3 | X3 | - . . - . . . - - |
| $ | shift + 4 | X4 | - . . - . . . . - |
| % | shift + 5 | X5 | - . . - . . . . . |
| ^ | shift + 6 | X6 | - . . - - . . . . |
| & | shift + 7 | X7 | - . . - - - . . . |
| * | shift + 8 | X8 | - . . - - - - . . |
| ( | shift + 9 | X9 | - . . - - - - - . |
| ) | shift + 0 | X0 | - . . - - - - - - |
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