Planning Your ProjectsAbout ElectricityCurrentVoltagePowerElectronic ComponentsThe ResistorThe Light-Emitting DiodeThe Solderless BreadboardProject #1: Creating a Blinking LED WaveThe AlgorithmThe HardwareThe SchematicThe SketchRunning the SketchUsing VariablesProject #2: Repeating with for LoopsVarying LED Brightness with Pulse-Width ModulationProject #3: Demonstrating PWMMore Electric ComponentsThe TransistorThe Rectifier DiodeThe RelayHigher-Voltage CircuitsLooking Ahead