Make your own DIY oscilloscope for £4 - Raspberry Pi PICO Project

Make your own DIY oscilloscope for £4

Amazon sell full kits if you are starting from nil:
UK: https://amzn.to/3OxvpHn
USA: https://amzn.to/39Nvc3u
Admittedly that might cost you more than the $5 that route, but you will have a nice little setup for experiments!

Python Source Code is included here, but for performance, switch to the Arduino stack:

from machine import Pin, I2C, PWM
from ssd1306 import SSD1306_I2C
import utime

#lets go!
button = Pin(10, Pin.IN, Pin.PULL_DOWN)

pwm = PWM(Pin(12))
pwm.freq(100) #1k
pwm.duty_u16(32767)

adc_read = machine.ADC(26) #A read takes 2us therefore 500ks/s!

i2c = I2C(0,sda=Pin(0),scl=Pin(1),freq=40000)
oled = SSD1306_I2C(128,32,i2c)

oled.fill(0)
oled.text("Ready!",0,0)
oled.show() #update the screen!

coefficient = 3.35 / 32767

while True:
reading = adc_read.read_u16()
calcvoltage = reading * coefficient
print("V", calcvoltage)

if button.value():
screenstuff = str(calcvoltage)
oled.fill(0)
oled.text(screenstuff,0,0)
oled.show() #update the screen!

utime.sleep(0.01)


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See my recommendations on Amazon: https://www.amazon.co.uk/shop/backoff...

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Thanks you lovely people, and keep on tinkering!

Youtube Chapters
0:00 Introduction