拿到香蕉派pro,为了熟悉树莓派的系统和python控制GPIO,写个跑马灯玩玩。
1、sudo apt-get update
2、sudo apt-get install python-dev
3、按github安装香蕉派pro的rpi.gpio
4、香蕉派pro代码,6个二极管闪烁三次后,开始跑马灯,执行两次后,再次闪烁三次。
import RPi.GPIO as GPIO import time # 声明针脚 PIN_8 = 8 PIN_10 = 10 PIN_11 = 11 PIN_13 = 13 PIN_15 = 15 PIN_31 = 31 # 电源长接,所以针脚低电平,灯点亮 myFlag = 0 myTime = 1 GPIO.setmode(GPIO.BOARD) arr = (PIN_11, PIN_13, PIN_15, PIN_31, PIN_8, PIN_10); for pin in arr: GPIO.setup(pin, GPIO.OUT) # 所有灯灭 for pin in arr: GPIO.output(pin, 1) i = 0; while True: if i % 2 == 0: for num in range(0, 3): for pin in arr: GPIO.output(pin, 0) time.sleep(0.4); for pin in arr: GPIO.output(pin, 1) time.sleep(0.4); time.sleep(1); for pin in arr: GPIO.output(pin, myFlag) for otherPin in arr: if pin != otherPin: GPIO.output(otherPin, not myFlag) time.sleep(myTime) i = i+1