標題: 樹莓派3b控制5v八路繼電器遇到的問題 [打印本頁]
作者: Ky13    時間: 2021-12-7 20:55
標題: 樹莓派3b控制5v八路繼電器遇到的問題
我用的是樹莓派3b，想控制一個5v八路繼電器，代碼邏輯是讓八個繼電器依次切換為高電平，以順序循環(huán)。
但是我接好線后，繼電器的In1 In2兩個小燈長亮。
運行腳本，只聽得到另外六個繼電器的打開和關閉的噠噠聲，而且只能控制一輪，之后就會失效，也無法控制后續(xù)電路工作。

排查一天了，不知道問題出在哪里....希望有人能發(fā)現(xiàn)問題

##################################代碼如下###################################
import RPi.GPIO as GPIO
import time
import numpy as np

# Set the BPM (speed) here
bpm = 120

# Each line represents a beat. Each 0 or 1 is a solenoid
sequence = [
  [1, 0, 0, 0, 0, 0, 0, 0],
  [0, 1, 0, 0, 0, 0, 0, 0],
  [0, 0, 1, 0, 0, 0, 0, 0],
  [0, 0, 0, 1, 0, 0, 0, 0],
  [0, 0, 0, 0, 1, 0, 0, 0],
  [0, 0, 0, 0, 0, 1, 0, 0],
  [0, 0, 0, 0, 0, 0, 1, 0],
  [0, 0, 0, 0, 0, 0, 0, 1],
  [1, 1, 1, 1, 1, 1, 1, 1],
  [1, 1, 1, 1, 1, 1, 1, 1],
  [1, 1, 1, 1, 1, 1, 1, 1],
  [1, 1, 1, 1, 1, 1, 1, 1],
]

gpio_map = [2, 3, 4, 17, 27, 22, 10, 9]

# The Lenth of time each solenoid should be activated
active_duration = 0.01

############################################# The main script#############################################

# Sets pin number to BCM mode
GPIO.setmode(GPIO.BCM)

# Calculate the time period between the solenoid being deactivated and the next beat starting
beat_gap = (float(60) / float(bpm)) - float(active_duration)


# Generator to infinitely loop around the sequence
def infinite_generator(n):
    i = 0
    while True:
        if i >= len(n):
            i = 0

        yield n[ i]
        i = i + 1

# Loop through each pin and set the mode and state to 'low'
for i in gpio_map:
    GPIO.setup(i, GPIO.OUT)
    GPIO.output(i, GPIO.HIGH)

# Run the infinite loop
try:
    for beat in infinite_generator(sequence):
        # Get active drum numbers
        active = np.where(beat)[0]
        # Get pin numbers for active drums
        pins = [gpio_map[ i] for i in active]

        print('Activating Pins ', pins)
        GPIO.output(pins, GPIO.LOW)
        time.sleep(active_duration)
        GPIO.output(pins, GPIO.HIGH)
        print('Sleep ', beat_gap)
        time.sleep(beat_gap)

# End
except KeyboardInterrupt:
    print ('Quit')
    # Reset GPIO settings
    GPIO.cleanup()

SZ6`7($WADIM[Z55)4ZG6JI.png (340.02 KB, 下載次數(shù): 39)

連線圖

連線圖

20211207_145808.jpg (3.4 MB, 下載次數(shù): 37)

未運行腳本兩個小燈常亮

未運行腳本兩個小燈常亮




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