Episode Four:
Learning to Control Sensors and Getting Data
Activity Card:
Activity Card:
This is the activity card that came with your materials. You can learn more about the science and electronics in this episode and view all of the steps and challenges for this week on this card. You can press the "Enter Fullscreen" button to make these cards bigger. Or, you can go here.
Step 1: Add all of your electronics to your system
Step 1: Add all of your electronics to your system
This video shows you how to add all of the electronics to your system. Follow along with your instruction booklet that came with your materials as well. If you get stuck, reach out! Send us an email or post on the "Help" page.
This video shows you how to add all of the electronics to your system. Follow along with your instruction booklet that came with your materials as well. If you get stuck, reach out! Send us an email or post on the "Help" page.
Step 2: Control the temperature in your greenhouse using a fan
Step 2: Control the temperature in your greenhouse using a fan
First, follow along with the video on the right to build the temperature-controlled fan circuit. Look at the activity cards to see what materials you need for this circuit.
First, follow along with the video on the right to build the temperature-controlled fan circuit. Look at the activity cards to see what materials you need for this circuit.
After you've built your circuit, click here to follow along with a tutorial to learn how to code a temperature-controlled fan.
After you've built your circuit, click here to follow along with a tutorial to learn how to code a temperature-controlled fan.
Step 3: Show all of your garden information on your OLED screen
Step 3: Show all of your garden information on your OLED screen
Use what you have learned from programming the micro:bit from the previous Episodes to create a program to show all your data on the OLED screen and change the LEDs color if the data is too high or low.
Use what you have learned from programming the micro:bit from the previous Episodes to create a program to show all your data on the OLED screen and change the LEDs color if the data is too high or low.
If you need a little help, check out this code which combines what we have learned in the previous episodes to collect temperature and humidity data, show it on the OLED screen, and change the color of the LEDs!
If you need a little help, check out this code which combines what we have learned in the previous episodes to collect temperature and humidity data, show it on the OLED screen, and change the color of the LEDs!
Try adding other types of data to this program. Note: check out how the LEDs are broken into two sections in this code, one part for humidity and one part for temperature.
Try adding other types of data to this program. Note: check out how the LEDs are broken into two sections in this code, one part for humidity and one part for temperature.
Step 4: Start a journal for your plants
Step 4: Start a journal for your plants
Start a journal to keep track of how your garden is growing. You can create a digital journal or print the pages out. Keeping track of how your garden is growing is a good way to learn more about what your garden needs to be healthy.
Start a journal to keep track of how your garden is growing. You can create a digital journal or print the pages out. Keeping track of how your garden is growing is a good way to learn more about what your garden needs to be healthy.
Don't forget to share your journal and your thoughts about this journal here: https://bit.ly/garden-journal-sharing (you can also find this page in the "resources" section for episode 4)
Don't forget to share your journal and your thoughts about this journal here: https://bit.ly/garden-journal-sharing (you can also find this page in the "resources" section for episode 4)
Challenge Yourself
Challenge Yourself
Pick at least one of these challenges to complete this week. Then make sure to share your experiences and thoughts below
Pick at least one of these challenges to complete this week. Then make sure to share your experiences and thoughts below
Create
Create
Build an electrical conductivity probe to explore nutrient solutions for your plants!
Code
Code
Try different LED animation patterns controlled by conductivity data from the garden!
Experiment
Experiment
Make different nutrient solutions to see how your plants do under different conditions!
Reflect
Reflect
Respond to the prompts at the top of each column by uploading, pictures, videos or just writing about your experiences. It doesn't have to be perfect, we just want to hear what you've been up to.