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Code Issues Releases Wiki Activity

Change button callback into 3-state

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This commit is contained in:
Andrey Pokhilko 2019-08-14 11:04:29 +03:00
parent 544aa82cf5
commit 6ad116fe1c
2 changed files with 9 additions and 2 deletions
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7
docs/MoveHub.md
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@ -34,3 +34,10 @@ def callback(is_pressed):
hub = MoveHub()
hub.button.subscribe(callback)
```
The state for button has 3 possible values:
- `0` - not released
- `1` - pressed
- `2` - pressed
It is for now unknown why Hub always issues notification with `1` and immediately with `2`, after button is pressed.

2
pylgbst/peripherals.py
View File

@ -660,4 +660,4 @@ class Button(Peripheral):
:type msg: MsgHubProperties
"""
if msg.property == MsgHubProperties.BUTTON and msg.operation == MsgHubProperties.UPSTREAM_UPDATE:
self._notify_subscribers(bool(usbyte(msg.parameters, 0)))
self._notify_subscribers(usbyte(msg.parameters, 0))