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Raspberry Pi tips のソース :: Besttechnology

knowledge:Raspberry Pi tipsのソース

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TITLE:Raspberry Pi tips
***build tools [#md3cfef7]
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<pre class="brush: bash;">
sudo apt install build-essential</pre>
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***various internal value monitors [#uc8a3bb3]
#html{{
<pre class="brush: bash;">
watch -n 1 sudo vcgencmd measure_clock arm
watch -n 1 sudo vcgencmd measure_volts
watch -n 1 sudo vcgencmd measure_temp</pre>
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***stop rpi3 boot splash [#mcfbfeb9]
>config.txt
 disable_splash=1

#html{{
<pre class="brush: bash;">
cd /boot
sudo mkdir /media/restorey
sudo mount /dev/mmcblk0p1/media/recovery/
sudo cp config.txt /media/recovery/
sudo restart</pre>
}}

***gpio heartbeat [#mc240af0]
>config.txt
 dtparam=act_led_trigger=heartbeat
 dtoverlay=act-led,gpio=16

***use gpio on ubuntu[#yd4ea6b0]
rpi4
#html{{
<pre class="brush: bash;">
sudo dpkg --add-architecture armhf
sudo apt-get install libc6
sudo apt-get install libc6:armhf libgcc1:armhf

wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb</pre>
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#html{{
<pre class="brush: bash;">
gpio -v
gpio version: 2.52
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: Pi 4B, Revision: 04, Memory: 8192MB, Maker: Sony
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.4
  * This Raspberry Pi supports user-level GPIO access.</pre>
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rpi3
#html{{
<pre class="brush: bash;">
sudo apt-get install wiringpi</pre>
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#html{{
<pre class="brush: bash;">
gpio readall
 +-----+-----+---------+------+---+---Pi 3B+-+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
 |   2 |   8 |   SDA.1 | ALT0 | 1 |  3 || 4  |   |      | 5v      |     |     |
 |   3 |   9 |   SCL.1 | ALT0 | 1 |  5 || 6  |   |      | 0v      |     |     |
 |   4 |   7 | GPIO. 7 |  OUT | 1 |  7 || 8  | 1 | ALT0 | TxD     | 15  | 14  |
 |     |     |      0v |      |   |  9 || 10 | 1 | ALT0 | RxD     | 16  | 15  |
 |  17 |   0 | GPIO. 0 |   IN | 1 | 11 || 12 | 0 | IN   | GPIO. 1 | 1   | 18  |
 |  27 |   2 | GPIO. 2 |   IN | 0 | 13 || 14 |   |      | 0v      |     |     |
 |  22 |   3 | GPIO. 3 |   IN | 0 | 15 || 16 | 0 | IN   | GPIO. 4 | 4   | 23  |
 |     |     |    3.3v |      |   | 17 || 18 | 0 | IN   | GPIO. 5 | 5   | 24  |
 |  10 |  12 |    MOSI |   IN | 0 | 19 || 20 |   |      | 0v      |     |     |
 |   9 |  13 |    MISO |   IN | 0 | 21 || 22 | 0 | IN   | GPIO. 6 | 6   | 25  |
 |  11 |  14 |    SCLK |   IN | 0 | 23 || 24 | 1 | IN   | CE0     | 10  | 8   |
 |     |     |      0v |      |   | 25 || 26 | 1 | IN   | CE1     | 11  | 7   |
 |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  | 1   |
 |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |     |
 |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  | 12  |
 |  13 |  23 | GPIO.23 |   IN | 0 | 33 || 34 |   |      | 0v      |     |     |
 |  19 |  24 | GPIO.24 |  OUT | 1 | 35 || 36 | 0 | OUT  | GPIO.27 | 27  | 16  |
 |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  | 20  |
 |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  | 21  |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+---Pi 3B+-+---+------+---------+-----+-----+</pre>
}}

***NetBIOS name [#n4ed7834]
#html{{
<pre class="brush: bash;">
sudo apt-get install winbind libnss-winbind
sudo systemctl start winbind
sudo systemctl enable winbind</pre>
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>Add "wins" to "hosts" in /etc/nsswitch.conf.
 hosts: files dns wins

#html{{
<pre class="brush: bash;">
sudo apt-get install samba</pre>
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>/etc/samba/smb.conf~
Set any value for netbios name, force user, and path.
 [global]
 netbios name = pi
 
 [share]
    comment = pi share
    path = /var/share
    public = yes
    read only = no
    browsable = yes
    force user = pi
    oplocks = False
    blocking locks = no

#html{{
<pre class="brush: bash;">
sudo smbd -D
sudo nmbd -D</pre>
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