Key Functions
- Current Limiting: Prevents excessive current from damaging sensitive components like LEDs or transistors, as seen in the example where an LED might burn out without one.
- Voltage Division: Reduces voltage levels to provide a specific voltage for other parts of the circuit.
- Signal Timing: Works with capacitors (RC circuits) to control frequency and timing in applications like oscillators, notes SparkFun Electronics and Learn to Solder Kits.
- Pull-up/Pull-down: Sets a default logic level (high or low) for digital pins.
