9. Case 08: Auto Pick-up Device#

9.1. Introduction#

  • In the normal pick-up of the nut fruits, we usually use a stick to chop the branches to get the mature fruits, which could do a bad harm to the leaves and branches,thus, we can make an auto pick-up device by shaking the trunk of the tree.

9.2. Function#

  • Shake the trunk of the tree to get the fruits.

9.4. Picture#

../../_images/microbit-Smart-Agriculture-Kit-case-01-02.png

9.5. Hardware Connection#

Connect the servo to P1 on IoT:bit.

../../_images/microbit-Smart-Agriculture-Kit-case-08-03.png

9.6. Software Programming#

Click “Advanced” in the MakeCode to see more choices.

../../_images/microbit-Smart-Agriculture-Kit-case-01-04.png

For programming, we need to add a package: click “Extensions” at the bottom of the MakeCode drawer and search with “servo” in the dialogue box to download it.

../../_images/microbit-Smart-Agriculture-Kit-case-01-06.png

Notice: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu.

9.7. Program#

Set the servo to drive to 90°, pause for 200ms, then set it to drive to 0° and pause another 200ms.

../../_images/microbit-Smart-Agriculture-Kit-case-08-07.png

Link: https://makecode.microbit.org/_EdPD6HckVEuE

9.8. Result#

  • Shake the trunk via the servo to pick up the fruits.