I need to measure the analogue input from 21 potentiometers (10k) and Im after any suggestions as to how this is possible.
Ive considered using 7 picaxe 08ms (each with 3 adc pins) and a 28X that links them all up, and I can do this, I have done it before with 5 08ms and an 18X but its messy and confusing. I was thinking about something along the lines of a matrix, kind of like a telephone keypad where you have 6 outputs to turn 9 pots on/off and they all link to one adc input?
im just tossing ideas around but if each output had a transistor(s) you could essentially make a tree diagram and with only 5 outputs you could have 32 output combinations?
you can see im in a puddle any help would be appreciated
Ive considered using 7 picaxe 08ms (each with 3 adc pins) and a 28X that links them all up, and I can do this, I have done it before with 5 08ms and an 18X but its messy and confusing. I was thinking about something along the lines of a matrix, kind of like a telephone keypad where you have 6 outputs to turn 9 pots on/off and they all link to one adc input?
im just tossing ideas around but if each output had a transistor(s) you could essentially make a tree diagram and with only 5 outputs you could have 32 output combinations?
you can see im in a puddle any help would be appreciated