Question

Its microcontroller was the TI-Launchpad, which required 5V to be powered.

Much of the rest of the car was powered by a 3.3V regulator. After switching to Arduino,
we no longer need two voltage regulators. Why could this be the case?

Answer 1

After switching to Arduino, only one voltage regulator is needed instead of two, because Arduino can operate with both 5V and 3.3V.

Step-by-step explanation:

When using the TI-Launchpad microcontroller, two voltage regulators were required because the microcontroller needed to be powered by 5V, while the rest of the car was powered by a 3.3V regulator. However, after switching to Arduino, only one voltage regulator is needed because the Arduino board can operate with a range of voltages, including 5V and 3.3V.