Keypad
The keypad API allows you to call functions when someone presses a button on the silicone keypad of their CampZone 2020 badge.
Available on: ✅ CampZone 2020
Example
import keypad
def on_key(key_index, is_pressed):
# Print to the serial port when a button is pressed or released
print('Key ' + key_index + ': ' + is_pressed)
keypad.add_handler(on_key)
Reference
| Command | Parameters | Returns | Description |
|---|---|---|---|
| add_handler | handler | - | Registers a handler function, that is called any time a keypad button is pressed or released. The first argument is the key index (0 top left, 3 top right, 12 bottom left, etc.), and the second argument is whether the button is currently pressed or not. |
| remove_handler | handler | - | Removes previously registered handler function, so it won’t be called anymore. |
| get_state | - | touch_state | Returns a list of 16 booleans indicating for each button whether they are currently pressed. |