Hand dryer 乾手機 @STEM II with 12 models

single micro:bit model from pack

fischertechnik

Product Description

 

Hand dryer:  you certainly won't have anything like this in your bathroom at home, there you have a towel hanging on a hook. But in public toilets or the restrooms in restaurants there is usually an electric blower mounted on the wall for blowing your hands dry with hot air.

A good invention, particularly when the state-of-the-art appliance doesn't even have a button you have to push to turn it on.  Simply hold your hands beneath it to turn it on.

 

Task:

When the light barrier is interrupted, the fan should start running.  As soon as the light barrier is no longer interrupted, the fan switches back off.

See full online guide with coding samples for the hand dryer model, plus extension activities

See micro:bit coding with input and output guides here

 

This is a specially discounted package - delivered in a clear plastic bag.  

New!  Till end December 2019 - each pack will come with the bonus fischertechik storage base (box 250 x 186

 

I/O board for micro:bit 

micro:bit pins extension board, designed specially to take advantage of  fischertechnik's unique,  flexible red and green round plug cable connections. By design, the I/O board rubber legs slot into the fischertechnik black base-plate grid securely.

 

 

 

The price below is for 1 model out of the 12 models STEM II pack.  If you want to built all 12 models, order the full STEM II pack instead.

 

  • All model parts can be reused and recycled for other projects and student's creative pieces.    fischertechnik is made in Germany with quality and precision.
  • No soldering.  Ideal for all ages, promote problem solving, changes on the fly as debugging and adjustment can be done instantly.    All works can be done to perfection as even the smallest adjustment can be accommodated, thanks to the complete range of mechanical/structural and electronic blocks offered by fischertechnik.
  • One of the 12 models of STEM 2.   You can now order it on its own for easy whole class lesson, without needing to pick and sort building blocks every time.  

Part 1 - micro:bit block commands used in the Hand Dryer Model

To achieve fluency and competency in micro:bit coding, you really need to get a thorough understanding of each of the block catagories to be used in the Hand Dryer  Model (see part 2 below for the full code).    Fortunately, all the reference guides are available on the BBC micro:bit web site for you to get a deeper and more comprehensive understanding and mastery.

Through every fischertechnik STEM II model (12 of them), you can learn, practise, build fluency and confidence in coding.

The Hand Dryer  Model used the following micro:bit blocks.  You can click to lean more about each of the block catagories.  The links bring you directly to the respective part of the BBC micro:bit reference document site, where live codes are included for you to understand, try, and download:

 

 

Part 2   The "live" Hand Dryer Code  - Understand, Edit and Download

  The following code has used all the mentioned blocks in Part 1 above.    

 

Comments In English, click the " ? " on block to find out the comment (meaning) of the block code.

  • If you read this page on a computer with wider screen size, you will be able to see the micro:bit simulator that is fully clickable.
  • If you cannot see the code, such as on a mobile phone, please  click this link instead.
  • Click   to open the code on the micro:bit website for further editing and modification.
  • Click   to download this code to your micro:bit for immediate use or to save on your computer.     

 

 

 

Connector No. Description
Outputs 8

8 x light/LED

4 x DC motor

- 600mA per output
- 6 - 9 V
    Inputs 6

    5 x analog/ digital

    1 x digital

    - signal up to 5V

     

    I2C 1 1 x connector (SCL, SDA)
    5V 1

    1 x sensor power supply connection

    (6-9V power supply)

    3.3 V 1 1 x sensor power supply connection
    Battery 1 1 x battery (6 - 9 V) min 4.5 V
    Power Supply 1 1 x universal power adaptor ( 6 - 9 V) min 4.5 v

     

     

    Order options
    ADD: 1 unit of I/O Board at HK$ 199
    ADD: 1 unit of micro:bit at HK$ 135
    HK$ 340.00

    Model Pack / No I/O board / No micro:bit