Allow user to interact with micro:bit buttons

[blainerothrock]

@karbassi any ideas on what we would want to do with the buttons?

[karbassi]

I'd like to be able to do something when they are pressed.

For example: press the A button and a function I wrote will run (turn the LEDs turn a random color).

[blainerothrock]

Ok, I have thought about this and I think I have a nice solution which will be nice to build on as we continue with the project

• While the script is running, a popup window will open which can display the current command that is running (e.g., "wheels at 100%") -- this will also be nice to indicate when a script is done, and allow to easily re-run.
• buttons will work on a aync pattern, where the robot will be connected, but waiting for a button press. The students will be able to assign commands to the two different buttons which will be invoked when pressed.

example code

from weallcode_robot import Robot

# Create a robot
name = "beep"
robot = Robot(name)

# assign buzz to button a press
robot.button_a.buzz(440, 0.25)

# assign led to button b press
robot.button_b.led(0, 0, 255)

# when running, the robot will execute any commands, when wait until the window is closed. If the button is pressed the commands associated with that button will be executed. 
robot.run()

as a next iteration, I think i would be neat to build in the ability to add buttons to the window which the students can program. So the students could, for example, drive the robots.

from weallcode_robot import Robot

# Create a robot
name = "beep"
robot = Robot(name)

# create a new button which will appear on the window
left_button = robot.new_button("left")

# assign a command to the left button
left_button.wheels(0,100)

robot.run()

lastly the window will be helpful for any errors, or any other helpful information.

@karbassi let me know what you think, I plan to have this done early next week.

[blainerothrock]

we could also assign commands to keys (e.g., drive with WASD or arrows).