Pi pico Larson Scanner part 2

July 2, 2023

Further to the previous post. I spent some time on this, trying to fix the problem. This is mostly re-written.

I have also made the lights run faster as per video below

Code is below.

delay = 0.05 #set delay

I would recommand a delay of 1 second for testing purposes, so it is easier to try and follow the code as it is running.

larsonscan.py

#flash on board pico led
# updated 1/7/2023 - working code
import machine 
import utime

#delay = input("Time Delay: ")

#bind LEDs / GPIO pins to variables

ledg = machine.Pin(11, machine.Pin.OUT) #green
ledb = machine.Pin(12, machine.Pin.OUT) # blue led
ledw = machine.Pin(13, machine.Pin.OUT) # white led
ledy = machine.Pin(14, machine.Pin.OUT) # yellow led
ledr = machine.Pin(15, machine.Pin.OUT) # red led 

#turn all LEDs off 

ledg.value(0) #off
ledb.value(0) #off
ledw.value(0) #off
ledy.value(0) #off
ledr.value(0) #off

utime.sleep(3)

#utime.sleep(2) # TWO second delay
#led_onboard = machine.Pin(25, machine.Pin.OUT)

delay = 0.05 #set delay

#ledg.value(0) ledg.value(1)
#ledb
#ledw
#ledy
#ledr

#g b w y r y w b -< repeat so therefore next led is back to g

while True:
    ledg.value(1)#on
    utime.sleep(delay)
    ledb.value(1) #on
    utime.sleep(delay)  
    ledg.value(0)#on
    utime.sleep(delay)
    ledw.value(1)
    utime.sleep(delay)
    ledb.value(0)
    utime.sleep(delay)
    ledy.value(1)
    utime.sleep(delay)
    ledw.value(0)
    utime.sleep(delay)
    ledr.value(1)
    utime.sleep(delay)
    ledy.value(0)
    utime.sleep(delay)
    ledr.value(1)
    utime.sleep(delay)
    ledy.value(1)
    utime.sleep(delay)
    ledr.value(0)
    utime.sleep(delay)
    ledw.value(1)
    utime.sleep(delay)
    ledy.value(0)
    utime.sleep(delay)
    ledb.value(1)
    utime.sleep(delay)
    ledw.value(0)
    utime.sleep(delay)

Tags

#uPython,#RaspberryPiPico,#LarsonScanner,#PhysicalComputing

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