Raspberry Pi and Arduino - Go to The Next Level - Activity 09 - Take Photos and Send Last One to Telegram when Button Is

This tutorial guides you through using a Raspberry Pi camera to take photos every two seconds using a non-blocking method. The photos are sent via Telegram when certain conditions are met, such as receiving a button press message from an Arduino or a photo request command from Telegram. The lesson covers interfacing with Arduino and handling photo requests to ensure the latest photo is sent.

What is the main task involving the Raspberry Pi camera in this activity?

• To take a photo every two seconds using a non-blocking method.

• To record a video every two seconds.

• To send a live video feed to Telegram.

• To take a photo every minute using a blocking method.

What method is used to take photos every two seconds?

• A blocking method using time.sleep.

• A non-blocking method.

• A method using a delay loop.

• A method using a timer interrupt.

What triggers the sending of a photo to Telegram?

• A light sensor activation.

• A temperature sensor reading.

• A motion detector signal.

• A button press message from Arduino.

How can you request a photo to be sent via Telegram?

• By pressing a button on the Raspberry Pi.

• By sending a 'get photo' command.

• By calling a specific phone number.

• By sending a 'start camera' command.

What happens when you request a photo via Telegram?

• You get a video instead of a photo.

• You receive the latest photo taken by the camera.

• You get the first photo taken by the camera.

• You receive a random photo from the gallery.