刷入后默认密码是pi pwd 12345678
默认是个pi的热点 ，ip 192.168.1.1 如果再把网线连上去，那么连上这个热点是可以上网的。
ssh默认开启的，密码是Raspberry
关于热点关闭问题，
网上说是在/etc/rc.local注释相关代码，而我的没有。
网上说
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
我纳闷卖家提供刷入的怎么默认有wifi,我怀疑我的被人改乱了
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=CN
network={
ssid="XX_PAY"
psk="11111"
}
network={
ssid="zhulin-huawei"
psk="111116271239"
}
network={
ssid="TP-LINK_5619"
psk="12345678"
key_mgmt=WPA-PSK
disabled=1
}
经过测试我配置上我的wifi没效果。
etc/network/interfaces配置 wifi
# interfaces(5) file used by ifup(8) and ifdown(8)
# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
auto wlan0
iface wlan0 inet static
address 192.168.2.244
netmask 255.255.255.0
gateway 192.168.2.1
wpa-ssid XX_PAY
wpa-passphrase WIFI密码
wireless-channel 11
测试后发现可以244联网了，之前192.168.1.1的远程地址连不上了，说明是生效了，但是纳闷的是图形界面显示的是X,而且我ping baidu是不通的。
ok,注释掉。
另外附加上本地lan的，不过我这都没效果，如果全部配置上，那wifi是脸上的，我能内网远程连上，但是ping不通，lan也不行，如果只配置lan,我发现并没有连上lan,wifi热点还在，但是，然后。。
auto lo
iface lo inet loopback
iface eth0 inet static
address 192.168.1.1
netmask 255.255.255.0
gateway 192.168.1.1
继续探索etc/dhcpd.conf方案
文件内容如下
# A sample configuration for dhcpcd.
# See dhcpcd.conf(5) for details.
# Allow users of this group to interact with dhcpcd via the control socket.
#controlgroup wheel
# Inform the DHCP server of our hostname for DDNS.
hostname
# Use the hardware address of the interface for the Client ID.
clientid
# or
# Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361.
# Some non-RFC compliant DHCP servers do not reply with this set.
# In this case, comment out duid and enable clientid above.
#duid
# Persist interface configuration when dhcpcd exits.
persistent
# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit
# A list of options to request from the DHCP server.
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
# Respect the network MTU. This is applied to DHCP routes.
option interface_mtu
# Most distributions have NTP support.
#option ntp_servers
# A ServerID is required by RFC2131.
require dhcp_server_identifier
# Generate SLAAC address using the Hardware Address of the interface
#slaac hwaddr
# OR generate Stable Private IPv6 Addresses based from the DUID
slaac private
# Example static IP configuration:
interface lan0
static ip_address=192.168.2.245/24
#static ip6_address=fd51:42f8:caae:d92e::ff/64
static routers=192.168.2.1
static domain_name_servers=192.168.2.1 8.8.8.8 fd51:42f8:caae:d92e::1
# It is possible to fall back to a static IP if DHCP fails:
# define static profile
#profile static_eth0
#static ip_address=192.168.1.23/24
#static routers=192.168.1.1
#static domain_name_servers=192.168.1.1
# fallback to static profile on eth0
#interface eth0
#fallback static_eth0
interface wlan0
static ip_address=192.168.1.1/24
nohook wpa_supplicant
其中lan0是我放开的，发现并没有连接上，我不配置他还连接上了，是默认的动态的，固定ip这么难的吗？我感觉要刷官方的系统，这都被改乱了
这里192.168.1.1/24大概就是这里产生热点的地方
总之，玩死了研究串口救砖还是usb转hdpi我感觉我还是重装吧
https://downloads.raspberrypi.org/raspios_arm64/images/
参考文章
https://blog.csdn.net/Naiva/article/details/105197196?utm_medium=distribute.pc_relevant.none-task-blog-2defaultbaidujs_baidulandingword~default-0-105197196-blog-106721491.235v38pc_relevant_sort_base1&spm=1001.2101.3001.4242.1&utm_relevant_index=3
https://blog.csdn.net/taw19960426/article/details/106721491
https://blog.csdn.net/zhf_sy/article/details/108873788
https://blog.csdn.net/SoftwarerRJY/article/details/95877052
https://www.cnblogs.com/keygle/archive/2013/04/27/3048273.html
https://zhuanlan.zhihu.com/p/458102755
https://blog.csdn.net/Edwinwzy/article/details/129140494
https://blog.csdn.net/ziqifeinv/article/details/79036452
https://www.jianshu.com/p/bd918ef98a4d
2023-11-8 19:16:49
今天我用我的pve 工控机插上 了usb读卡器，然后看到了设备
image.png
fdisk -l
Device Boot Start End Sectors Size Id Type
/dev/sda1 8192 532479 524288 256M c W95 FAT32 (LBA)
/dev/sda2 532480 31116287 30583808 14.6G 83 Linux
root@pve:/mnt/test/etc/network#
直接进入 /dev/sda2是进不去的
所以 mkdir /mnt/test
然后mount /dev/sda2 /mnt/test
然后df -m /dev/sda2可以看到挂载点了
image.png
ok,不需要hdmi线和开启串口也可以了。
sudo nano /etc/hostapd/hostapd.conf清空内容
image.png
最后我的配置如下 dhcpcd.conf
# Allow users of this group to interact with dhcpcd via the control socket.
#controlgroup wheel
# Inform the DHCP server of our hostname for DDNS.
hostname
# Use the hardware address of the interface for the Client ID.
clientid
# or
# Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361.
# Some non-RFC compliant DHCP servers do not reply with this set.
# In this case, comment out duid and enable clientid above.
#duid
# Persist interface configuration when dhcpcd exits.
persistent
# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit
# A list of options to request from the DHCP server.
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
# Respect the network MTU. This is applied to DHCP routes.
option interface_mtu
# Most distributions have NTP support.
#option ntp_servers
# A ServerID is required by RFC2131.
require dhcp_server_identifier
# Generate SLAAC address using the Hardware Address of the interface
#slaac hwaddr
# OR generate Stable Private IPv6 Addresses based from the DUID
slaac private
interface wlan0
static ip_address=192.168.2.244/24
static routers=192.168.2.1
static domain_name_servers=192.168.2.1 8.8.8.8
识别wpa_文件
/etc/network/interfaces 中编辑
#auto wlan0
allow-hotplug wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
至于直接设置密码的上面已经提到了，没有网的问题，关闭热点，设置了dns
就解决了
resolve.conf可以配置多个dns地址比如路由器地址 以及8.8.8.8之类
创建热点的原理大概也理解了
在etc/dhcpcd.conf中添加
image.png
在etc/hostapd/hostapd.conf中添加
image.png
那么热点就有了。
至于lan口无法固定的问题不太懂，难道是上面执行了if 后面又wifi if把它覆盖了？
我发现在好几个地方配置 分别配置不同ip都没生效，不过自动分配了一个ip我直接路由器给他固定得了
编程
home目录具备权限，因此 ssh连接直接创建文件
#include <wiringPi.h>
#include <stdio.h>
#define LEDPin 21
int main(){
printf("hello");
wiringPiSetup();
pinMode(LEDPin,OUTPUT);
int i=0;
for(;;){
digitalWrite(LEDPin,1);//ON
delay(500);
digitalWrite(LEDPin,0);
delay(500);
if(i>5){
break;
}
i++;
}
;
}
F((M~JNTD4U@$JKBJAU4}$D_tmb.jpg
输入
gcc led.c -o led -lwiringPi然后
./led就发现灯闪烁了，直接ctrl+z可以直接结束程序，
image.png
image.png
PYTHON
#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
LEDPin=29# FROM 5----HEAD 29
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LEDPin,GPIO.OUT)
GPIO.output(LEDPin,GPIO.HIGH)
try:
while True:
print 'led on'
GPIO.output(LEDPin,GPIO.LOW)
time.sleep(0.5)
print 'led off'
GPIO.output(LEDPin,GPIO.HIGH)
time.sleep(0.5)
except KeyboardInterrupt:
GPIO.output(LEDPin,GPIO.HIGH)
GPIO.cleanup()
这里是python2, t同样，执行即可，会发现灯一闪一闪
上面5 则模式为GPIO.BCM
这里的led是控制扩展版自带的灯
bcm
#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
LEDPin=5
GPIO.setmode(GPIO.BCM)
GPIO.setup(LEDPin,GPIO.OUT)
GPIO.output(LEDPin,GPIO.HIGH)
if GPIO.input(LEDPin) == GPIO.HIGH:
print('HEIGHT')
else:
print('LOW')
try:
while True:
print 'led on'
GPIO.output(LEDPin,GPIO.LOW)
time.sleep(0.5)
print 'led off'
GPIO.output(LEDPin,GPIO.HIGH)
time.sleep(0.5)
except KeyboardInterrupt:
GPIO.output(LEDPin,GPIO.HIGH)
GPIO.cleanup()
image.png
扩展板GPIO17对应的是这下面的GPIO0
扩展板是bcm牌子的 ，因此上面的读数GPIO17就是bcm的17
image.png
最后我的笔记
image.png
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