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1) A student uses the code below in a continuous loop to generate a 200 Hz square wave, noting the period of 200 Hz is
1) A student uses the code below in a continuous loop to generate a 200 Hz square wave, noting the period of 200 Hz is 5 ms.
He is then surprised to measure a frequency of 250 Hz. Explain why this is so.
redLed 1; wait ms(2.5) redLed = ; wait ms (2.5); // flash red led
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