import time #Analog Input
from machine import Pin #Analog Input
from machine import ADC #Analog Input

from machine import Pin, I2C
from ssd1306 import SSD1306_I2C




#Initialisierung
abe = ADC(Pin(28))  #Analog Input

pix_res_x = 128
pix_res_y = 64


#I2C Display
def init_i2c(scl_pin, sda_pin):
    # Initialize I2C device
    i2c_dev = I2C(0, scl=Pin(scl_pin), sda=Pin(sda_pin), freq=200000)
    i2c_addr = [hex(ii) for ii in i2c_dev.scan()]
    if not i2c_addr:
        print('No I2C Display Found')
        sys.exit()
    else:
        print("I2C Address      : {}".format(i2c_addr[0]))
        print("I2C Configuration: {}".format(i2c_dev))
    return i2c_dev
i2c_dev = init_i2c(scl_pin=21, sda_pin=20)
oled = SSD1306_I2C(pix_res_x, pix_res_y, i2c_dev)




# main
while True:

    #Analog Input
    value = abe.read_u16()  # Ausgabe: 0-65535
    value = 3.3 * abe.read_u16() / 65535 #Ausgabe 0-3.3V
    print("Spannung: " + str(value) + "V")
    print("Spannung: " + str(round(value, 2)) + "V")

    #I2C Scanner
    print("I2C Geräte gefunden: " + str(i2c_dev.scan()))
    
    #I2C Display
    oled.text("Raspberry Pi", 5, 5)
    oled.text("Pico", 5, 15)
    oled.show()

    
    time.sleep(1)