display_micro.py

from machine import Pin, I2C, time_pulse_us
from sh1106 import SH1106_I2C
from math import sin
from time import sleep_us, sleep_ms

i2c = I2C(0)
display = SH1106_I2C(128, 64, i2c)

trigger = Pin(16, Pin.OUT)
echo = Pin(17, Pin.IN)

display.fill(0)
display.flip(None)

def f(x) -> int:
    return int(sin(x/10)*31) + 30

def get_distance(trigger, echo):
    trigger.on()
    sleep_us(10)
    trigger.off()
    time = time_pulse_us(echo, 1, 20000)
    return time/2/29.1

ticks = 0

while True:
    distance = max(get_distance(trigger, echo), 0)
    sleep_ms(1)
    display.fill(0)
    hours = int(ticks) // 3600
    minutes = (int(ticks) - hours * 3600) // 60
    seconds = int(ticks) - hours * 3600 - minutes * 60
    
    display.text(f'{int(ticks)}', 0, 0)
    # display.text(f"{hours}:{minutes}:{seconds}", 0, 9)
    # display.show()
    if distance != 0:
        ticks += 30/distance
    t = int(ticks)

    for x in range(t, t+127):
        y = 63-f(x)
        prev_y = 63-f(x-1)
        if y < 0 or prev_y < 0:
            continue
        display.line(x-t, y, x-1-t, prev_y, 1)
    display.show()