How it Works

How the pushbutton_test_x2 Script Works

The pushbutton_test_x2 script started as pushbutton_test, and was adapted for two pushbuttons through the following changes: 

• The state variable was replaced by state9 and state6. 
• The pin6.set_pull(pin6.NO_PULL) call was repeated for pin 9: pin9.set_pull(pin9.NO_PULL).
• The single state = pin6.read_digital() statement was replaced with two new versions, one for state6 and pin6, and the other for state9 and pin9. 
• The print statement was expanded so that it shows values for both state9 and state6.    

Try This

The button_light_blink_x2 script is the two-button, two-light version of the button_light_blink script from the Build and Test a Pushbutton activity’s Your Turn section.

• Enter the button_light_blink_x2 script into the micro:bit Python Editor.
• Set the project name field to button_light_blink_x2, then click Save.
• Click Send to micro:bit.
• Verify that the green light connected to P13 stays off when the button connected to P6  is not pressed.
• Press and hold the button.  Verify that the P13 light blinks while the P6 pushbutton is held down.
• Repeat with the test for control of the P14 light with the P9 pushbutton.