Single LED
IR LED/Detector Pair for Object Detection
LEDs in Series
LEDs in Parallel
Output buffers
Switch inputs
Switch debounce
Capacitive Proximity Sensor
Analog multiplexer
Digital multiplexer
Driving mechanical relays
Driving solid-state relays
Light sensor
"Blinker" circuit
Digital potentiometer
Adding extra output pins
Adding extra input pins
Analog-to-digital conversion
Digital-to-analog conversion
Servo Driver
Servo driver w/o microcontroller
Solenoid Drivers
DC Motor Driver
Stepper-Motor Driver
120VAC Switching
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