OVOS Mark1 Client
July 31, 2026 ยท View on GitHub
This library controls the faceplate and eyes of the Mycroft Mark 1 hardware enclosure. It sends commands over the OVOS messagebus and gives you pixel-by-pixel control of the 32x8 mouth display and the eye ring.

Install
pip install ovos-mark1-utils
Usage
Draw a custom icon on the mouth display.
from ovos_mark1.faceplate import BlackScreen
class MusicIcon(BlackScreen):
str_grid = """
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXX XXXXXXXXXXXXX
XXXXXXXXXXXXXX XXXXXXXXXXXXX
XXXXXXXXXXXXXX XXX XXXXXXXXXXXXX
XXXXXXXXXXXXXX XXX XXXXXXXXXXXXX
XXXXXXXXXXXXX XX XXXXXXXXXXXXX
XXXXXXXXXXXX X XXXXXXXXXXXXX
XXXXXXXXXXXXX XXX XXXXXXXXXXXXXX
"""
icon = MusicIcon()
icon.print() # show in terminal
icon.display() # show in mark1
Animate the eyes.
from ovos_mark1.eyes import Eyes
from ovos_bus_client.util import get_mycroft_bus
bus = get_mycroft_bus("0.0.0.0")
eyes = Eyes(bus)
eyes.hue_spin()
Build your own faceplate animation. Subclass FacePlateAnimation and define an animate() method that runs on each frame.
# it's snowing !
class FallingDots(FacePlateAnimation):
def __init__(self, n=10, bus=None):
super().__init__(bus=bus)
self._create = True
assert 0 < n < 32
self.n = n
@property
def n_dots(self):
n = 0
for y in range(self.height):
for x in range(self.width):
if self.grid[y][x]:
n += 1
return n
def animate(self):
self.move_down()
if self._create:
if random.choice([True, False]):
self._create = False
x = random.randint(0, self.width - 1)
self.grid[0][x] = 1
if self.n_dots < self.n:
self._create = True
Use a prebuilt animation.
from ovos_mark1.faceplate.animations import ParticleBox
from ovos_utils.messagebus import get_mycroft_bus
from time import sleep
bus = get_mycroft_bus("0.0.0.0")
for faceplate in ParticleBox(bus=bus):
faceplate.display(invert=False)
sleep(0.5)
from ovos_mark1.faceplate.cellular_automaton import Rule110
a = Rule110(bus=bus)
for grid in a:
grid.print() # animate in terminal
grid.display(invert=False)
sleep(0.5)
Related projects
- OpenVoiceOS/ovos-PHAL-plugin-mk1: the PHAL plugin that receives the messagebus events this library sends and drives the Mark 1 enclosure hardware.
License
Apache License 2.0. See LICENSE.