Digital Input and Output with an Arduino

• Pulldown resistor:

• setup()

• loop()

Analog In with an Arduino

<aside> <img src="/icons/question-mark_yellow.svg" alt="/icons/question-mark_yellow.svg" width="40px" /> Do we have to set analog pin mode?

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<aside> <img src="/icons/question-mark_yellow.svg" alt="/icons/question-mark_yellow.svg" width="40px" /> Depending on what kind of principles, we choose the speed of serial for Serial.begin()

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• Serial

Sensor Change Detection

• Program the Microcontroller to Read the Pushbutton’s State Change:
• Long press and short press