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  • TK8 commented on jsvester's instructable Simple Arduino and HC-SR04 Example2 years ago
    Simple Arduino and HC-SR04 Example

    Great example ! I suggest getting rid of the floating point math. I tested both waysand saved 500 bytes of program space doing away with the floating point.How about scaling up by 10 to get rid of 29.1 (becomes 291). distance = ( (distance >>1) *10)/291;// (distance >>1) is division by two

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