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1) Using your Arduino UNO, write a program that makes your LED flash at a user set frequency. Your code should ask the user to enter a frequency. Show that frequency on the monitor and make the LED flash at that frequency The user should be allowed to change the selected frequency while program is working. 2)This assignment builds on the (1). In this assignment, I need you to ask the user for two quantities. Frequency and Duration. (in Hz and Seconds). Your LED should then flash at the requested frequency for the given duration. An entry of 2 and 10 for example, should make the LED flash twice per second for 10 seconds. The user should be able to enter new values when first is done.

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