今天到中興高中教智慧農業課程，帶領學生DIY，把泡泡機當水車用，學生和老師都玩的很高興。
自動泡泡機 DIY材料包：https://www.icshop.com.tw/product-page.php?28134
MicroPython MQTT教材：https://randomnerdtutorials.com/micropython-mqtt-esp32-esp8266/
L298N驅動兩個馬達：https://sites.google.com/site/zsgititit/home/arduino/arduino-shi-yongl298n-qu-dong-liang-ge-ma-da
修改程式碼：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | def sub_cb(topic, msg): from machine import Pin led = Pin(14, Pin.OUT) led2 = Pin(16, Pin.OUT) led3 = Pin(4, Pin.OUT) led4 = Pin(5, Pin.OUT) print((topic, msg)) if topic == b'notification': print('ESP received hello message') if msg == b'on': print('on') led.value(1) led2.value(0) elif msg == b'off': print('off') led.value(0) led2.value(0) elif msg == b'on2': print('on2') led3.value(1) led4.value(0) elif msg == b'off2': print('off3') led3.value(0) led4.value(0) |
