The lighthouse project

What is a Lighthouse – why people are making Lighthouses – Have you ever visited a Lighthouse?

1. Discuss within your group: in a lighthouse without a keeper, how the flashing light is turned on when it is getting dark? How it is turned off in daylight?

Write your ideas here…

2. Plan within your group: how can you make a model of a lighthouse? What materials and devices you need?

Write or draw your plan here…

3. Make a lighthouse with materials and devices available in the lab. Take a photo of your model and upload it to your group folder.

4. Make the lighthouse to blink (to alternate from on to off state) every one second.

Tip: Use a led in series with an 1kΩ resistor.
Tip: open Snap!4Arduino to program your lighthouse.

5. Make the lighthouse to blink at different rates by modifying the on and off period duration.

6. How can you read and inspect analog values from the pinA0 of the Arduino Uno board?

Tip: Connect the A0 pin to the ground / 5 Volt / 3.3 Volt pin (each time) using a wire.
Tip: Connect the A0 pin to the 5 Volt pin to the center pin of a potentiometer using a wire (the other 2 pins of the potentiometer should be connected to ground and 5 Volt respectively).

7. Connect (instead of a potentiometer) a photoresistor / 10kΩ resistor to the pin A0 of the Arduino and write down the corresponding values for daylight and darkness conditions.

Tip: use curtains or your hand to change the light level.

8. Make the lighthouse to blink only at darkness.

9. Prepare a demo of your project to show your work to your peers.

 

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.