Create the Color Training Script

Entering the Script

Now it’s your turn to program the micro:bit. Open the MakeCode editor.  It’s usually best to start by opening an earlier project where the HUSKYLENS and cyber:bot extensions have already been added.

This program will let you change IDs, teach the HUSKYLENS to recognize colors, and erase learned data using the micro:bit buttons and logo touch.

• In the MakeCode editor, build the blocks program with the picture below as your guide.
• Use the name field to the right of the Download button to name the project Learn Colors.
• Click the floppy disk Save icon to the right of the name filed to save your work.
• Use the Download button to load the program into the micro:bit.

How it Works

1. Share I²C between micro:bit and cyber:bot
   The block I2C Repeat on with clock signal on pin P5 data on P4) has the cyber:bot board’s Propeller microcontroller share the micro:bit I²C bus with the HUSKYLENS connection. The pause (ms) (100) block gives everything time to get ready.

2. Start the HUSKYLENS
   The block HuskyLens initialize I2C until success starts communication between the micro:bit and HUSKYLENS camera. Then HuskyLens switch algorithm to (color recognition)sets it to look for colors.

3. Keep track of the current ID
   A variable set (currentId) to (1) starts the currentId variable at 1. This number tells HUSKYLENS which memory slot it’s working with.

4. Forever loop 
   Inside the forever block, the program responds to button presses by configuring the HUSKYLENS with if…else if…else if… decisions:

   • if <button (A) is pressed> and <button (B) is pressed> then
     This means both buttons have to be pressed at about the same time.
     → The block HuskyLens learn ID (currentId) once automatically tells HUSKYLENS to remember the current item in this ID slot. The block show icon (Yes) confirms learning worked.

   • else if <button (A) is pressed> then
     → The block change (currentId) by (1) increases the ID number. The block show number (currentId) shows the new ID on the micro:bit module’s LED matrix screen.

   • else if <button (A) is pressed> then
     → The block change currentId by (0–1) decreases the ID number by 1. The block show number (currentId) shows the updated ID.

   • else if <logo is pressed> then
     → The block huskylens forget all learning data of the current algorithm clears all the learned items. The block show icon (Skull) shows that memory has been erased.

   • One pause for everything
     The block pause (300 ms) slows down the loop just enough to act like a button “debounce,” so one press only counts once.