27. Lektion: ADC

Ein simples Script

import machine
import utime
potentiometer = machine.ADC(26)
while True:
    print(potentiometer.read_u16())
    utime.sleep(1)

Probleme beim ADC

• Rauschen des Schaltreglers
• schlechte Kontaktgabe beim Breadboard

• https://randomnerdtutorials.com/raspberry-pi-pico-analog-inputs-micropython/
  • ADC des Raspberry Pi Pico
  • ADC des ESP32
  • ADC ADS1115
    • https://www.ti.com/lit/ds/symlink/ads1115.pdf?ts=1693292712477&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252Fde-de%252FADS1115
    • https://www.az-delivery.de/products/analog-digitalwandler-ads1115-mit-i2c-interface?variant=19034185039968
    • https://www.berrybase.de/ads1115-4-kanal-16-bit-ad-wandler-breakout-board
    • https://github.com/wollewald/ADS1115_mpy
    • https://github.com/robert-hh/ads1x15
    • https://pypi.org/project/ADS1115-mic-py/
    • https://www.grzesina.de/az/blog_robotcar/ads1115rc.py
    • https://how2electronics.com/ads1115-16-bit-adc-module-with-raspberry-pi-pico/