Remember the following important points about what we learned in this chapter.
- Standalone devices operate from independent power sources
- Independent power sources can be in the form of batteries, wall AC to DC adapters and USB power hubs
- Remotely located devices may need to be powered from solar powered cells
- There are three ways to power the Arduino board from external sources; via USB, through the DC IN port, and by using the VIN pin
- 5-volt tolerant peripherals can be directly powered from the Arduino 5V power supply pin