六、数码管显示数字

esp32

2024-01-26 17:08:08

1. 本节课的成功

2. 数码管

1653197998828

为什么会亮呢？

答：里面就是LED灯

1653197871014

3. 链接方式

1653198477380

4. 代码

import machine
import time


a = machine.Pin(13, machine.Pin.OUT)
b = machine.Pin(12, machine.Pin.OUT)
c = machine.Pin(14, machine.Pin.OUT)
d = machine.Pin(27, machine.Pin.OUT)
e = machine.Pin(26, machine.Pin.OUT)
f = machine.Pin(25, machine.Pin.OUT)
g = machine.Pin(33, machine.Pin.OUT)
dot = machine.Pin(32, machine.Pin.OUT)

number_led = [a, b, c, d, e, f, g, dot]

number_dict = {
    0: "11111100",
    1: "01100000",
    2: "11011010",
    3: "11110010",
    4: "01100110",
    5: "10110110",
    6: "10111110",
    7: "11100000",
    8: "11111110",
    9: "11110110",
    "open": "11111111",
    "close": "00000000"
}

def show_number(number):
    if number_dict.get(number):
        i = 0
        for bit in number_dict.get(number):
            if bit == "1":
                number_led[i].value(1)
            else:
                number_led[i].value(0)
            i += 1

def main():
    # show_number("open")  # 全亮
    # show_number("close")  # 全灭

    for i in range(10):
        show_number(i)
        time.sleep(0.3)

if __name__ == "__main__":
    main()

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