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In teams, design a clock signal using a 555-timer in an astable monovibrator configuration. Simulate the design and/or build a prototype and measure the output frequency. If instrumentation to measure the frequency is not available (an oscilloscope for example), a clock frequency timed using a stopwatch can be used as an alternative. Compare and contrast the prediction of the outcome with actual results. Develop a presentation to explain the circuit design, the prediction, and the results from the simulation or prototype. Note: The instructor may wish to constrain the output frequency by supplying a resistor value and/or a capacitor value.