The sunflower project

1. Helianthus or sunflower (from the Greek: ήλιος, Hēlios, "sun" and ανθός, anthos, "flower"): sunflowers tilt during the day to face the sun. This tracking of the sun is called heliotropism. How do you explain this behavior?

2. Can you create a flower (sunflower) from paperboard and somehow make it follow the sun? What kind of material and devices will you need to do so? How will you simulate the sun?

Discuss in group and write down or paint your work plan here...

3. Create a flower (sunflower) with the tools and material you will find in the lab. During the creation process, take photos of the flower and select and save some of them in the group’s folder.

4. Now make the flower follow the sun.

Tip 1: Link the ArduinoUno board to two light sensors so that you can «read» the analog values of light.
Tip 2: Link an angle servo to an Arduino pin. If you need to, find on the Internet information on the angle servo mechanism. Link the flower to the motor so as to move around its axis according to photoresistor array readings, in order to enjoy the sunshine.
Tip 3: Turn on Snap!4Arduino so as to program your flower to move around its axis depending to the light values that the two light sensors will be reading from the «sun».

5. If you have time, think of similar scenarios that you could design. For instance, the Christmas Magus following the Bethlehem Star.

6. Prepare a presentation of the current state of your work to share with the other groups.

Don’t forget to take notes on your diary!

 

Licença Creative Commons    eCraft2Learn H2020-731345 - EDUMOTIVA.

This work is licensed under a License Creative Commons Atribution 4.0 International.

This project has received funding from the European Union's Horizon 2020 Coordination & Research and Innovation Action Under Grant Agreement No 731345.