Sunday, February 28, 2010

A blinking aside

This post isn't related to the explosion of boxes, but it is related to the blinking of chikins. In the near future, the organic nature of chikins will be permanently fused with an electronic brain, for a more regular blinking. The designer of such a brain will have need to be able to predetermine the rate of blinking for a given chikin. This is not a difficult task, but it does get tedious, and what good are computers if they won't do tedious tasks for us? Therefore, I present the glorious

Chikin Blinker Calculator
AKA 555 timer astable mode calculator and visualiser. Canvas not supported!

R1:
R2:

Time on: ms
Time off: ms
C: μF

This simple script calculates the time on and off for a 555's output given two resistor values and a capacitor value, as well as the two resistor values given time spent on and off and a capacitor value. In addition, there is a convenient visualisation and circuit diagram, drawn in a <canvas> context, which blinks at the rate specified. I think this ought to be useful for anyone who likes electronics, but doe not like tedious number-crunching.

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