Lesson 1 - UNIHIKER K10: Guardian of Marine Life
1. Engage: How Do We Collect Trash in the Ocean?
Imagine a beautiful ocean full of colorful fish and coral reefs—but there’s a problem: plastic bottles, bags, and trash floating everywhere. These items harm marine life!
Key Question
If you were designing a trash-collecting boat, how could you tell if you caught trash… or a living creature?
Discuss student ideas (look? listen? feel?). Then reveal: When a fish or turtle is caught, it wiggles and makes tiny shakes—like a secret signal. We can check if there are marine animals in the trash by feeling vibrations.
2.Explore: How to Detect Vibrations?
Key Question
How does your phone track steps?
Your phone has a sensor called an accelerometer. It can feel every step you take and how fast you’re walking. Then, the phone’s processor checks all that data. It tells the difference between your real walking steps and other moves—like when you are typing or taking photos. That’s how your phone tracks your steps!
Introduce the accelerometer:The UNIHIKER K10 has an accelerometer too, which can measure movement in 3 directions: X (left-right), Y (forward-backward), and Z (up-down).
Activity 1
Feel the Vibration
Pass around a UNIHIKER K10 with a pre-uploaded program.
Ask students to perform simple movements (like shaking or tilting the device) and observe the motion of the green ball on the screen.
Test the Code:
Hold it still: the green ball stays in the middle of the screen.
Tilt it left-right: How does the ball move?
3. Engineer: Load Project, Connect and Upload
Now, Let’s teach the UNIHIKER K10 to show the value of a action! We’ll use the Mind+.
Steps:
1. Download and install Mind+ V2 software through the website below:
https://mindplus.cc/en/
2. Go to the Coding tab and select Upload Mode.
3. Go Extension, download and install UNIHIKER K10 extension from the Board tab.
4. Drag “cache text” and “show cached content” blocks, then insert the “read temperature” block into the “cache text” block.
5. Plug the UNIHIKER K10 into a computer with a Type-C cable. Click “Connect Device” to connect to the UNIHIKER K10.
Watch the screen and observe how the number changes.
4. Experience & Challenge: Design a Marine Life Guardian
Key Question
What does the number mean?
Let’s make a code to figure it out.
Activity 2
Students follow the steps to build the code, connect and upload it.
Test, observe and complete the table.
Conclusion: The larger the tilt angle, the greater the value, and we can use this to judge the degree of vibration.
Activity 3
Goal: Program the UNIHIKER K10 to beep when vibrations (acceleration(mg) X) are too big—warning the boat crew to check!
Guiding steps:
Load the project from the attachment.
Modify the condition such as setting "absolute value of (current X - last X)>=50".
Connect and upload it.
Test it!
Have a partner gently shake the board (trash—no beep).
Then shake it hard (simulate a fish—should beep!).
5. Elaborate: Protecting Oceans—Our Role in SDG 14
Today, you used UNIHIKER K10 to become Marine Guardians.
Brainstorm: What else can we do to help them?
1. Pick up trash at the beach!
2. Use reusable water bottles instead of plastic!
3. Tell others not to litter!
Sea turtles, fish, and coral need clean oceans to survive. By protecting oceans, we ensure every fish, turtle, and coral has a safe home. That’s SDG 14: Life Below Water in action!”
Lesson1(K10).zip 
