Re: Embedded Control for a newbie
Progrock already solves that problem in a very easy way. It has three bank select inputs bits which are programmable in binary. Just connect your rotary switch wiper to +5V then wire up suitable series 1n4148 diodes (like a diode ROM) to each switch position so that the thing outputs 3 bit binary . Program your frequencies into output 1 in each bank and done. A 6 position switch will need only 9 diodes.
No ADC, no separate computer, nothing painful.
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