Arduino Polling Technique

What is the main difference between analog and digital polling?

• Analog polling uses physical devices while digital polling uses virtual devices

• Analog polling is more expensive than digital polling

• Analog polling is faster than digital polling

• Continuous vs. discrete signals

Explain how interrupt-based polling works in Arduino.

• Interrupt-based polling in Arduino relies on the use of a while loop to continuously monitor for events, which can block other processes.

• Interrupt-based polling in Arduino involves setting up an interrupt to trigger a specific function when a certain event occurs, such as a change in a pin state. This allows the Arduino to continue executing other tasks until the interrupt is triggered, improving efficiency.

• Interrupt-based polling in Arduino requires the use of a delay function to periodically check for events, which can introduce latency.

• Interrupt-based polling in Arduino involves using a dedicated polling thread to constantly check for events, which can lead to high CPU usage.

Which type of polling is generally more efficient: analog or digital?

• Analog

• Digital

• Mechanical

• Hybrid

What are the advantages of using interrupt-based polling?

• Delayed response to events and increased CPU resource consumption

• Immediate response to events and reduced CPU resource consumption

• Higher risk of system crashes due to interrupt conflicts

• Limited event handling capabilities

How does analog polling work in Arduino?

• Analog polling in Arduino works by reading the analog voltage from a sensor using the analogRead() function.

• Analog polling in Arduino relies on WiFi connectivity to read sensor data

• Analog polling in Arduino involves sending digital signals to a sensor

• Analog polling in Arduino uses the analogWrite() function to read sensor values

Discuss the drawbacks of digital polling compared to analog polling.

• Digital polling is more expensive than analog polling.

• Digital polling is less accurate than analog polling.

• Digital polling is not user-friendly compared to analog polling.

• Digital polling is vulnerable to hacking and manipulation, and may exclude certain demographics.

In what scenarios would you prefer to use interrupt-based polling over analog or digital polling?

• Real-time systems or applications requiring low latency

• In scenarios with limited power constraints

• For non-real-time applications

• When high accuracy is required

What factors should be considered when determining the efficiency of polling techniques?

• Number of social media followers, favorite TV show, preferred vacation destination

• Favorite color, shoe size, pet preference

• Sample size, sampling method, question wording, response rate, and potential bias.

• Weather conditions, time of day, political affiliation

Can you give an example of a real-world application where analog polling is more suitable than digital polling?

• Medical devices or scientific instruments

• Agricultural monitoring systems

• Traffic light control systems

• Online shopping platforms

How can polling frequency affect the performance of an Arduino system?

• Polling frequency has no impact on Arduino performance

• Polling frequency can affect the performance of an Arduino system by impacting power consumption and responsiveness.

• Higher polling frequency reduces the chances of errors

• Lower polling frequency increases the memory capacity of Arduino