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9.4: Assignment

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    Alter the program so that the lighting logic is inverted, that is, increasing force should light a greater number of LEDs in bar mode and reverses the motion of dot mode. Do not alter the FSR circuit. This must be achieved via code only. Second, add a switch to Arduino pin 7 (port D.7). The position of this switch should allow the user to choose between a dot mode and bar mode display. Debouncing of this switch should not be necessary. For extra credit, add a second switch (Arduino pin 6, Port D.6) which allows the user to choose between the existing linear scale and a logarithmic scale corresponding to 6 dB per LED (i.e. halving of levels, the top most LED lighting above 512). Include your code and a proper schematic diagram with component values.

    This page titled 9.4: Assignment is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by James M. Fiore via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.