Brand: DROK (for benchtop), Anker (for USB adapters)
A small power supply, either a compact benchtop unit or a USB-powered adapter, provides a stable and reliable voltage source (e.g., 5V, 9V, 12V) for Arduino projects. This decouples the Arduino from a computer's USB port, allowing for independent testing, deployment, and powering of more complex circuits with higher current demands. It's an indispensable tool for makers venturing beyond basic, USB-powered experiments.
Type: electrical
Price Range: $20-80
Pros
- Provides stable and reliable power for complex circuits and components.
- Enables standalone operation of Arduino projects without a computer connection.
- Offers higher current output than a typical USB port, preventing power-related issues.
Cons
- Requires an AC outlet or dedicated power source for benchtop models.
- Some cheaper units may have less precise voltage regulation or higher ripple.
- Adds another component and potentially more wiring to your project setup.