使用树莓派控制4路继电器

来源：互联网发布：淘宝退货率计算公式编辑：程序博客网时间：2024/06/04 23:30

IND1 不是接在17号GPIO口上，而是GPIO.0口上，即为11号口上才是对的，其它网上的教程这方面都未详细说明，我也不知道为什么：）

可能 GPIO默认out的是 GPIO.0 号口。

目前就这么多吧，接下来就是写自动化控制了。

加上简单控制的python 代码

1：～～～～～～～～

1 #!/user/bin/python
2 # like this use: python gpiotest.py 1 or 0
3
4 import sys
5 import RPi.GPIO as GPIO
6 GPIO.setwarnings(False)
7 GPIO.setmode(GPIO.BCM)
8 args = sys.argv
9 pin = 17 # 这里的pin = 17 为 BCM 编码的 17 ，树莓派的第11号口，wiringPi的0
10 ct1 = args[1]
11
12 if (int(ct1) == 1):
13 GPIO.setup(pin, GPIO.OUT)
14 GPIO.output(pin,GPIO.HIGH)
15
16 if (int(ct1) == 0):
17 GPIO.setup(pin, GPIO.OUT)
18 GPIO.output(pin,GPIO.LOW)

代码2：控制4路

##################################################

# P17 ----> Relay_Ch1
# P18 ----> Relay_Ch2
# P27 ----> Relay_Ch3
# P22 ----> Relay_Ch4
##################################################
#!/usr/bin/python
# -*- coding:utf-8 -*-
import RPi.GPIO as GPIO
import time

Relay_Ch1 = 17
Relay_Ch2 = 18
Relay_Ch3 = 27
Relay_Ch4 = 22

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)

GPIO.setup(Relay_Ch1,GPIO.OUT)
GPIO.setup(Relay_Ch2,GPIO.OUT)
GPIO.setup(Relay_Ch3,GPIO.OUT)
GPIO.setup(Relay_Ch4,GPIO.OUT)

print("Setup The Relay Module is [success]")

try:
while True:
#Control the Channel 1
GPIO.output(Relay_Ch1,GPIO.LOW)
print("Channel 1:The Common Contact is access to the Normal Open Contact!")
time.sleep(0.5)

GPIO.output(Relay_Ch1,GPIO.HIGH)
print("Channel 1:The Common Contact is access to the Normal Closed Contact!\n")
time.sleep(0.5)

#Control the Channel 2
GPIO.output(Relay_Ch2,GPIO.LOW)
print("Channel 2:The Common Contact is access to the Normal Open Contact!")
time.sleep(0.5)

GPIO.output(Relay_Ch2,GPIO.HIGH)
print("Channel 2:The Common Contact is access to the Normal Closed Contact!\n")
time.sleep(0.5)

#Control the Channel 3
GPIO.output(Relay_Ch3,GPIO.LOW)
print("Channel 3:The Common Contact is access to the Normal Open Contact!")
time.sleep(0.5)

GPIO.output(Relay_Ch3,GPIO.HIGH)
print("Channel 3:The Common Contact is access to the Normal Closed Contact!\n")
time.sleep(0.5)

#Control the Channel 4
GPIO.output(Relay_Ch4,GPIO.LOW)
print("Channel 4:The Common Contact is access to the Normal Open Contact!")
time.sleep(0.5)

GPIO.output(Relay_Ch4,GPIO.HIGH)
print("Channel 4:The Common Contact is access to the Normal Closed Contact!\n")
time.sleep(0.5)
except:
print("except")
GPIO.cleanup()

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