NRF24L01 Python 覆盆子库

Question

我尝试使用此库在 Raspberry Pi 3 上为 NRF24L01 编写测试函数：https://github.com/jpbarraca/pynrf24

我需要从该代码在运行时在列表和写入模式之间切换。不幸的是，由于库的原因，我遇到了错误。

谁能告诉我如何解决它们？或者至少给我一些其他可以正常工作的库？

Raspberry 上的 SPI 已启用因为它是问题 (https://github.com/jpbarraca/pynrf24/issues/38) ：我也尝试过 set begin(0,0... 但结果是：

Traceback (most recent call last): File "TestNRF.py", line 8, in
radio.begin(0, 0, "P8_23", "P8_24")  # Set CE and IRQ pins   File "/home/pi/Commander/NRF24L01/nrf24.py", line 232, in begin
GPIO.setup(self.ce_pin, GPIO.OUT) 
ValueError: Channel must be an integer or list/tuple of integers

我也试过了：https://github.com/BLavery/lib_nrf24 但我找不到从哪里可以得到模块 virtGPIO

from NRF24L01.nrf24 import NRF24
import time
import struct

pipes = [[0xe7, 0xe7, 0xe7, 0xe7, 0xe7], [0xc2, 0xc2, 0xc2, 0xc2, 0xc2]]

radio = NRF24()
radio.begin(1, 0, "P8_23", "P8_24")  # Set CE and IRQ pins
radio.setRetries(15, 15)
radio.setPayloadSize(5)
radio.setChannel(0x60)

radio.setDataRate(NRF24.BR_250KBPS)
radio.setPALevel(NRF24.PA_MAX)


def writeMode():
    radio.stopListening()
    radio.openWritingPipe(pipes[1])
    radio.openReadingPipe(1, pipes[0])

    # radio.startListening()
    # radio.stopListening()


def listenMode():
    radio.openWritingPipe(pipes[0])
    radio.openReadingPipe(1, pipes[1])

    # radio.startListening()
    # radio.stopListening()

    radio.startListening()

    i = 0
    while True:
        listenMode()
        print("Listen Mode")
        recv_buffer = []
        pipe = [0]
        if radio.available(pipe, True):
            radio.read(recv_buffer)
            values = struct.unpack_from('HBBB',recv_buffer)
            print(values)
        else:
            writeMode()
            print("Write Mode")
            msg = struct.pack('HBBB', 3000, 243, 234, 254)
            radio.write(msg)
            time.sleep(0.2)
        i = +1
        if i == 4:
            exit()

Error: Traceback (most recent call last): File "TestNRF.py", line 8, in
radio.begin(1, 0, "P8_23", "P8_24")  # Set CE and IRQ pins   File "/home/pi/Commander/NRF24L01/nrf24.py", line 213, in begin
self.spidev.open(major, minor) 
FileNotFoundError: [Errno 2] No such file or directory

Answer 1

对于像我这样的未来傻瓜（因为我不认为有任何更大的白痴） Raspberry Pi 3 B+ 只有 SPI0 这意味着那条线 :

radio.begin(1, 0, "P8_23", "P8_24")

必须改为：

radio.begin(0, 0, "P8_23", "P8_24")

还记得为CE和IRQ设置引脚（例如）：

radio.begin(0, 0, 23, 24)

好照片： Raspberry 3 B+ pinout

Answer 2

我通过在 raspy-config 中启用 SPI 接口解决了我的 pi 4b 中的这个问题。

NRF24L01 Python 覆盆子库

NRF24L01 Python Library for Raspberry

python-3.x

raspberry-pi3