On Saturday, 22 February 2014 15:31:04 UTC, Bill v wrote: > > Hello, > > > > I have built a clock controlled by a PIC with 6 numitrons in the centre. > Around them is a circle of 60LEDs which are programmed to display a number > of different patterns. I am currently working on a pendulum pattern which > uses the lower 30 LEDs. I have the software done, the challenge is this: > > > > A pendulum has a period and an angular velocity that changes from 0 at the > ends, and maximum in the center, following an equation. In the software I > currently have 36 time slices (program steps, 0 to 35) in a half period of > 107 clock cycles, for a total of 3852 cycles for one swing (left or right). > > > > Looking at one swing, my challenge now is to divide the 36 program steps > of 107 clock cycles such that the total number of clock cycles remains > 3852, but the actual number of clock cycles per step are divided such as to > approximate the equation of one pendulum swing (left or right). > > > > Anyone willing to take a stab at this? > > > > Bill van Dijk >
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