Sense HAT workshop
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Special made for Tim Peake's
Astro Pi mission
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Sensors, LED display &
joystick
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Great for science, games and
creativity
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Works on any Pi model
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Emulators also available
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Sense HAT
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Open Python 3
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Type directly into the Python shell
>>> from sense_hat import SenseHat
>>> sense = SenseHat()
>>> sense.show_message(“Hello world”)
>>> sense.temperature
>>> sense.humidity
>>> sense.accelerometer
>>> sense.gyroscope
>>> sense.orientation
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Open a new window and type...
from sense_hat import SenseHat
sense = SenseHat()
x = 4
y = 5
r = 19
g = 180
b = 230
sense.set_pixel(x, y, r, g, b)
Save and run:
Ctrl + S
F5
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Run! Change the numbers! Run again!
from sense_hat import SenseHat
sense = SenseHat()
x = 2
y = 3
r = 222
g = 33
b = 111
sense.set_pixel(x, y, r, g, b)
Save and run:
Ctrl + S
F5
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Let the computer pick random numbers...
from sense_hat import SenseHat
from random import randint
sense = SenseHat()
x = randint(0, 7)
y = randint(0, 7)
r = randint(0, 255)
g = randint(0, 255)
b = randint(0, 255)
sense.set_pixel(x, y, r, g, b)
Save and run:
Ctrl + S
F5
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Random sparkles!
from sense_hat import SenseHat
from random import randint
from time import sleep
sense = SenseHat()
while True:
x = randint(0, 7)
y = randint(0, 7)
r = randint(0, 255)
g = randint(0, 255)
b = randint(0, 255)
sense.set_pixel(x, y, r, g, b)
sleep(0.01)
Save and run:
Ctrl + S
F5
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Pixel pet
from sense_hat import SenseHat
from time import sleep
sense = SenseHat()
p = (204, 0, 204) # Pink
g = (0, 102, 102) # Dark Green
w = (200, 200, 200) # White
y = (204, 204, 0) # Yellow
e = (0, 0, 0) # Empty
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Pixel pet!
pet1 = [
e, e, e, e, e, e, e, e,
p, e, e, e, e, e, e, e,
e, p, e, e, p, e, p, e,
e, p, g, g, p, y, y, e,
e, g, g, g, y, w, y, g,
e, g, g, g, g, y, y, e,
e, g, e, g, e, g, e, e,
e, e, e, e, e, e, e, e
]
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Pixel pet!
pet2 = [
e, e, e, e, e, e, e, e,
p, e, e, e, e, e, e, e,
e, p, e, e, p, e, p, e,
e, p, g, g, p, w, w, e,
e, g, g, g, w, y, w, y,
e, g, g, g, g, w, w, e,
e, e, g, e, g, e, e, e,
e, e, e, e, e, e, e, e
]
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...and breathe...
while True:
print(sense.humidity)
if sense.humidity < 60:
sense.set_pixels(pet1)
sleep(0.5)
else:
sense.set_pixels(pet2)
sleep(2)
Save and run:
Ctrl + S
F5
What else can you do?
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You've learned how to:
– Read sensor values
– Write text to the screen
– Write pixels and pixel art to the screen
– Use the sensors to display different pictures when shaken
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What else can you do?