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Volhout
Guru

Joined: 05/03/2018
Location: Netherlands
Posts: 5994
Posted: 02:38pm 28 Nov 2022      

For those who have no access to a rotary encoder: you can use a analog input and measure the voltage at a potmeter connected to 3.3V and 0.
A potmeter (and knob) have enough resolution to select individual characters (1 of 26).

Poor mans rotary....