import LCD_24x32 as LCD

from machine import ADC
from time import sleep_ms

a2d0 = machine.ADC(1)

Navy = LCD.RGB(0,0,10)
Yellow = LCD.RGB(150,150,0)

LCD.Init()
LCD.Clear(Navy)
LCD.Box(30, 80, 330, 150, Yellow)

k = 6.0 * 3.3 / 65535
Vmax = -999
Vmin = 999

while(1):
    a0 = a2d0.read_u16() 
    Volt = k*a0 - 9.9
    if(Volt > Vmax):
        Vmax = Volt
    if(Volt < Vmin):
        Vmin = Volt
    LCD.Text4('Volts:', 50, 100, Yellow, Navy)
    LCD.Number4(Volt, 5, 3, 170, 100, Yellow, Navy)

    LCD.Text4('Vmax:', 50, 170, Yellow, Navy)
    LCD.Number4(Vmax, 5, 3, 170, 170, Yellow, Navy)

    LCD.Text4('Vmin:', 50, 220, Yellow, Navy)
    LCD.Number4(Vmin, 5, 3, 170, 220, Yellow, Navy)

    print(Volt)
    sleep_ms(200)