Hi folks, here are some photos from our end-of-year party today and a photo of some ninjas, some mentors and some Tesco members of staff at Tesco Athenry marking the end of our Community Fund collection period. Thanks to Tesco Ireland and to everyone who dropped a blue token in the box for us!
Hope to see you all next year!
Hi folks, we finished as much of Speedy Spaceship as we could this week. I took it and added a few finishing touches:
My high score has been 71k. See if you can do better!
The code is available from our GitHub, as always. I’m sure the game could be made even more fun with some clever tweaking of speeds and rates. If you give it a go, be sure to let me know.
Thanks for a fun year and I hope we’ll see some of you next year.
This week we are going to try making a measuring device using our HC-SR04 sensors.
First we’ll wire our circuit up.
Next let’s test our circuit with the following code.
from machine import Pin
import utime
from time import sleep
trigger = Pin(17, Pin.OUT)
echo = Pin(16, Pin.IN, Pin.PULL_DOWN)
buzzer = Pin(15, Pin.OUT)
def ultra():
trigger.low()
utime.sleep_us(2)
trigger.high()
utime.sleep_us(5)
trigger.low()
while echo.value() == 0:
signaloff = utime.ticks_us()
while echo.value() == 1:
signalon = utime.ticks_us()
timepassed = signalon - signaloff
distance = (timepassed * 0.0343) / 2
print("The distance from object is ", distance, "cm")
return distance
def buzz():
buzzer.value(1)
sleep(0.5)
buzzer.value(0)
sleep(0.5)
while True:
dist = ultra()
if dist < 30:
buzz()
utime.sleep(1)
This week’s challenge is to rewrite the code so the the closer to something the sensor is the faster it will beep.
Once we have that done we will look at transferring the code onto the Pico itself and running it from a battery.
CoderDojo Athenry 