After finishing and submitting the Arduino tutorial lessons in the blog post below, complete the following challenges as a right of passage before beginning the Arduino project:
Challenge #1: Use the Arduino’s ADC functions to print a digital reading from the voltmeter on the Serial Monitor Window WARNING: THE ARDUINO CAN ONLY INPUT A MAXIMUM VOLTAGE OF 5 VOTLS. ANYTHING BEYOND THIS WILL BURN THE CIRCUITRY Challenge #2: Use the Arduino’s PWM function to input to control the speed of a motor (or brightness of LED) through the Serial Monitor Window Challenge #3: put the ADC and PWM together; vary the speed of a motor by altering the “knob” (potentiometer) on the power supply
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