import time,random,math
from machine import I2C,SoftI2C,Pin,RTC
from pico_i2c_lcd import I2cLcd
 
i2c=SoftI2C(sda=Pin(0),scl=Pin(1),freq=400000)
lcd_addr=i2c.scan()[0]
print(lcd_addr)
 
lcd=I2cLcd(i2c,lcd_addr,2,16)

ans=[]
for i in range(10):
    cnt=0
    for i in range(1000):
 
        r=int((random.random()*2))
        c=int((random.random()*16))
 
        lcd.clear()
        lcd.move_to(c,r)
        lcd.putstr("*")
        time.sleep(0.05)
        lcd.clear()
        cnt=cnt+1
 
        if r==1 and c==5:
            ans.append(cnt)
            print(cnt)
            cnt=0
            break
print(sum(ans)/len(ans))