> Suppose your resistors and measuring equipment were good enough that you needed 5% between neighbouring values. Then you can squeeze in 141 distinct values be

> Suppose your resistors and measuring equipment were good enough that you needed 5% between neighbouring values. Then you can squeeze in 141 distinct values between 1 Megohm and 1 kilohm. Seems plenty to me. How would you detect multiple simultaneous keypresses, either for n-key rollover or for shift/ctrl/alt types of keys?