Loads of leds (random display)

from picozero import LED from time import sleep as zzz from random import randint #max of 16 LEDs if using picozero, due to PWM conflicts. #Using 0 to 15 to make setup easier num_leds = 8 overflow_num=2**num_leds leds=[] for i in range(0,num_leds): leds.append(LED(i)) #shuffle LEDs for j in range(num_leds): i=randint(1,num_leds-1) leds[j],leds[i]=leds[i],leds[j] #reverse the order of i and j try: while True: i=randint(0,overflow_num) for j, led in enumerate(leds): led.brightness=int(bin(i+overflow_num)[j+3]) zzz(3) except KeyboardInterrupt: for led in leds: led.off() print('Turn off LEDs and quit') #https://www.youtube.com/watch?v=9MZGQmkeLAA

TTB05: Reading Analog Voltages Using a Potentiometer

import machine from time import sleep potPin = 28 myPot = machine.ADC(potPin) while True: potVal=myPot.read_u16() #print('PotVal =',potVal) #max=65535, min=1024, middle=65535-1024=64511 voltage = (3.3/64511)*potVal - (1024*3.3/64511) #print('Voltage =',voltage) percentage = (100/64511)*potVal-(1024*100/64511) #print('Percentage = ',int(percentage)) print('PotVal =',potVal, 'Voltage =',voltage, 'Percentage = ',int(percentage)) sleep(1) #https://www.youtube.com/watch?v=ODWwErH_iGA&list=PLGs0VKk2DiYz8js1SJog21cDhkBqyAhC5&index=5

TTB04a: Creating a Knight Rider LED display using a Pi Pico W

from machine import Pin from time import sleep for i in range (8,14): Pin((i), Pin.OUT) delay = 0.2 kr=[8,0,8,9,0,9,10,0,10,11,0,11,12,0,12,13,0,13] def KITT(): for j in range(len(kr)): if kr[j] == 0: sleep(delay) else: Pin(kr[j]).toggle() try: while True: KITT() except KeyboardInterrupt: for k in range(8,14): Pin(k).value(0) print('Keboard Interrupted, LEDs off') #https://www.youtube.com/watch?v=cGgDzVtppaQ

TTB04: Create a Binary Counter Using the Pico W

from machine import Pin from time import sleep led1 = Pin(15, Pin.OUT) led2 = Pin(14, Pin.OUT) led3 = Pin(13, Pin.OUT) led4 = Pin(12, Pin.OUT) while True: led1.value(0) led2.value(0) led3.value(0) led4.value(0) sleep(.5) led1.value(0) led2.value(0) led3.value(0) led4.value(1) sleep(.5) led1.value(0) led2.value(0) led3.value(1) led4.value(0) sleep(.5) led1.value(0) led2.value(0) led3.value(1) led4.value(1) sleep(.5) led1.value(0) led2.value(1) led3.value(0) led4.value(0) sleep(.5) led1.value(0) led2.value(1) led3.value(0) led4.value(1) sleep(.5) led1.value(0) led2.value(1) led3.value(1) led4.value(0) sleep(.5) led1.value(0) led2.value(1) led3.value(1) led4.value(1) sleep(.5) led1.value(1) led2.value(0) led3.value(0) led4.value(0) sleep(.5) led1.value(1) led2.value(0) led3.value(0) led4.value(1) sleep(.5) led1.value(1) led2.value(0) led3.value(1) led4.value(0) sleep(.5) led1.value(1) led2.value(0) led3.value(1) led4.value(1) sleep(.5) led1.value(1) led2.value(1) led3.value(0) led4.value(0) sleep(.5) led1.value(1) led2.value(1) led3.value(0) led4.value(1) sleep(.5) led1.value(1) led2.value(1) led3.value(1) led4.value(0) sleep(.5) led1.value(1) led2.value(1) led3.value(1) led4.value(1) sleep(.5) https://www.youtube.com/watch?v=P1dzHNgAtvg&list=PLGs0VKk2DiYz8js1SJog21cDhkBqyAhC5&index=4