What must be ensured when wiring sensors or actuators to a robot's I/O ports?

When wiring sensors or actuators to a robot's I/O ports, it is essential to ensure proper voltage and polarity. This is because electronic components such as sensors and actuators require specific voltage levels to function correctly, and incorrect voltage can lead to malfunction or damage. Additionally, polarity is crucial; reversing the polarity can cause immediate failure of the component or may even result in a short circuit. Therefore, verifying that the voltage supplied matches the specifications and that the polarity is aligned as intended is critical for the safe and effective operation of the robotic system.

The other options, while relevant to overall robot operations, do not address the specific requirements of wiring sensors and actuators. Correct positioning of the robot relates more to its operational environment rather than internal wiring. Wireless connections, while technologically relevant, are not applicable in many scenarios where wired connections are still the standard for reliable communication and power delivery. Lastly, the selection of high-capacity batteries pertains to power supply considerations but does not directly impact the wiring integrity of sensors and actuators to the robot's I/O ports.