Hopefully fixed problem with tone() blocking when it should be non-blocking
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@ -186,7 +186,8 @@ void tone(uint32_t pin, uint32_t freq, uint32_t duration) {
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pinMode(tone_pin, INPUT);
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}
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while(tone_nhw) ; // blocks till duration elapsed
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//while(tone_nhw) ; // blocks till duration elapsed
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}
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////////////////////////////////////////////////////////////////////////////////
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