event — Event Module

event The main functionality and functions of the module

Two kinds of writing

Method 1: registration method, as the following example：

event.start(test_callback)
event.received(callback, 'hello')

Method 2: modifier notation, as in the following example：

@event.start
def start_callback():
print(123)
@event.received('hello')
def received_callback():
print(123)

Note: when the function has parameters other than callback, the parameter is added.

Function

event.start(callback)

Start event, parameters:

  • callback - Callback function.
event.shaked(callback)

Shaking events, parameters:

  • callback - Callback function.
event.button_pressed(callback)

Button press event, parameters:

  • callback - Callback function.
event.tilted_left(callback)

Tilted left events, parameters:

  • callback - Callback function.
event.tilted_right(callback)

Tilted right events, parameters:

  • callback - Callback function.
event.arrow_up(callback)

Arrow up event, parameters:

  • callback - Callback function.
event.arrow_down(callback)

Arrow down event, parameters:

  • callback - Callback function.
event.receieved(callback, message_str)

Broadcast event, parameters:

  • callback - Callback function.
  • message_str - The name of the broadcast to listen for.
event.cloud_message(message)

Cloud broadcast event, parameters:

  • message - String data, the name of the information to broadcast.
event.mesh_message(message)

Mesh broadcast event, parameters:

  • message - String data, the name of the information to broadcast.
event.greater_than(callback, threshold, type_str)

Threshold comparison event. If the threshold is exceeded, the event will be triggered. Parameter:

  • callback - Callback function.
  • threshold - Numeric, trigger threshold.
  • type_str - microphone/timer，represents the sound sensor and the timer, which are currently supported only.
event.touchpad0_active(callback)

Touched button, parameters:

  • callback - Callback function.
event.touchpad1_active(callback)

Touched button, parameters:

  • callback - Callback function.
event.touchpad2_active(callback)

Touched button, parameters:

  • callback - Callback function.
event.touchpad3_active(callback)

Touched button, parameters:

  • callback - Callback function.

Sample Code：

import haloboard
import time
import event

@event.button_pressed
def on_button_pressed():
    print("button event successed")
    haloboard.broadcast('hello')
    haloboard.mesh.broadcast('hello')

@event.start
def on_start():
    print("start event successed")

@event.shaked
def on_shaked():
    print("shaked event activate")

@event.received("hello")
def received_cb():
    print("broadcast received event successed")

@event.tilted_left
def on_tilted_left():
    print("tilted left event successed")

@event.tilted_right
def on_tilted_right():
    print("tilted right event successed")

@event.arrow_up
def on_arrow_up():
    print("arrow up event successed")

@event.arrow_down
def on_arrow_up():
    print("arrow down event successed")

@event.greater_than(80, "microphone")
def on_greater_than():
    print("sound sensor greater event successed")

@event.greater_than(2, "timer")
def on_greater_than():
    print("timer greater event successed")

@event.touchpad0_active
def on_touchpad0_active():
    print("touchpad0 active")

@event.touchpad1_active
def on_touchpad1_active():
    print("touchpad1 active")

@event.touchpad2_active
def on_touchpad2_active():
    print("touchpad2 active")

@event.touchpad3_active
def on_touchpad3_active():
    print("touchpad3 active")

@event.cloud_message("hello")
def on_cloud_message():
    print("cloud message event successed")

@event.mesh_message("hello")
def on_mesh_message():
    print("mesh message event successed")