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from gpiozero import TonalBuzzer, Button
from picamera import PiCamera
from datetime import datetime
from time import sleep

buzzer = TonalBuzzer(20)
doorbell = Button(21)
camera = PiCamera()

def play(tune):

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ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=GB

network={
    ssid="SSID"
    psk="PASSWORD"
}

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from gpiozero import InputDevice, OutputDevice
from time import time, sleep

def read_light_sensor(pin):
    with OutputDevice(pin) as cap:
        cap.value = 0
        sleep(0.1)
    # Time the charging of the capacitor
    start = time()
    with InputDevice(pin) as ldr:

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Sense HAT scroll message

What's needed

• Raspberry Pi with Sense HAT

The activity

The participant starts by running a pre-written script which scrolls the message "Hello world". They then change the message to one of their own, and run again. They can then change the colour. Finally they are given code with a loop showing the Raspberry Pi logo followed by the scrolling message at a different speed and in different colours, which they can play with.

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from gpiozero import LightSensor
from time import time, sleep

class NoisyLightSensor(LightSensor):
    def _read(self):
        # Drain charge from the capacitor
        self.pin.function = 'output'
        self.pin.state = False
        sleep(0.1)
        # Time the charging of the capacitor

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package=$1
mapfile -t versions < versions.txt

for v in "${versions[@]}"
do
    echo $v
    date
    /usr/bin/time -f "piw-import $package-$v-*.whl -y --duration 00:%E" -ao imports.sh pip3 wheel $package==$v -q --no-deps --no-binary $package --extra-index-url https://www.piwheels.org/simple --prefer-binary
done

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for f in *armv7l.whl;
    do mv $f ${f%armv7l.whl}armv6l.whl;
done

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# run this in a console

from gpiozero import Button
from time import sleep

btn = Button(2)

def foo():
    while True:
        print("foo")

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Requirements:

sudo pip3 install pypollen geopy