What are Sensors? Name three different types of sensors available in App Inventorwith their uses

Sensors are devices that detect events or changes in the environment and then provide a corresponding output. They are a key component in many automated systems and are used in a wide range of applications, from industrial manufacturing to home automation.

App Inventor is a cloud-based tool that allows you to build apps for Android devices. It provides a variety of sensors that you can use in your apps. Here are three examples:

1. Accelerometer Sensor: This sensor measures the acceleration applied to the device. It can be used in games to control characters or objects, in fitness apps to count steps or detect movement, or in any app where you want to respond to the device being shaken or tilted.

2. Location Sensor: This sensor provides information about the device's current geographical location. It can be used in map apps to show the user's current location, in weather apps to provide local forecasts, or in any app where you want to provide location-based services.

3. Proximity Sensor: This sensor detects when an object is near to the device's screen. It can be used in apps to perform actions when the device is picked up or put down, or to prevent accidental input when the device is held up to the user's ear during a call.