目录
学习目标
成果展示
硬件知识
代码
总结
学习目标
本节我们来使用ESP32和MicroPython来控制数码管，包括一位数码管和四位数码管，具体的原理部分在51已经讲解的非常详细了，就不再赘述。
成果展示
https://player.bilibili.com/player.html?aid=859905932
数码管1
https://player.bilibili.com/player.html?aid=987384504
数码管4
硬件知识
（四）51单片机基础——数码管_花园宝宝小点点的博客-CSDN博客_单片机数码管
https://blog.csdn.net/weixin_66578482/article/details/124769180
这就是硬件原理部分，不懂得可以看一下之前的笔记。
我觉得本节最难的对方就是面包板的使用，因为是第一次使用。但是后来了解了面包板的构造之后，就觉得比较简单，两边一列连通，中间半排连通，两边彼此不连通，记住这些基本操作之后就觉得简单许多了。
代码
代码语言：javascript复制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)
h = machine.Pin(32, machine.Pin.OUT)
number_led = [a, b, c, d, e, f, g, h]
number_dict = {
0: "11111100",
1: "01100000",
2: "11011010",
3: "11110010",
4: "01100110",
5: "10110110",
6: "10111110",
7: "11100000",
8: "11111110",
9: "11110110",
}
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():
for i in range(10):
show_number(i)
time.sleep(1)
if __name__ == "__main__":
main()import machine
import time
led1 = machine.Pin(5, machine.Pin.OUT)
led2 = machine.Pin(18, machine.Pin.OUT)
led3 = machine.Pin(19, machine.Pin.OUT)
led4 = machine.Pin(21, machine.Pin.OUT)
led1.value(0)
led2.value(0)
led3.value(0)
led4.value(0)
number_led_list = [led1, led2, led3, led4]
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)
h = machine.Pin(32, machine.Pin.OUT)
number_led = [a, b, c, d, e, f, g, h]
number_dict = {
0: "11111100",
1: "01100000",
2: "11011010",
3: "11110010",
4: "01100110",
5: "10110110",
6: "10111110",
7: "11100000",
8: "11111110",
9: "11110110"
}
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 show_4_number(number):
if 0 <= number <= 9999:
i = 0
for num in "d" % number: # 转换为字符串1
print(num)
show_number(int(num)) # 控制显示数字
light_on(i) # 控制哪一个灯
time.sleep_ms(5)
led1.value(1)
led2.value(1)
led3.value(1)
led4.value(1)
i = 1
def light_on(i):
# 全部设置为0
for led in number_led_list:
led.value(1)
number_led_list[i].value(0)
for i in range(1000, 10000):
for j in range(10):
show_4_number(i)总结
总体来说还是比较简单的，就是第一次使用面包板，有点不太会，但是学习一下就能正常操作了。
