Raspberry PI

Sur Raspbian, configuration

sudo raspi-config

Mettre à jour les firmwares

sudo rpi-update

Configurer le terminal

sudo dpkg-reconfigure console-setup

Activer SSH sur Raspbian via un fichier

Créer le fichier /boot/ssh.

Wifi via un fichier de configuration de Raspbian

Créer /boot/wpa_supplicant.conf :

country=fr
update_config=1
ctrl_interface=/var/run/wpa_supplicant

network={
    ssid="YOUR_SSID"
    psk="YOUR_PASSWORD"
    key_mgmt=WPA-PSK
}

Wifi

http://www.raspberrypi.org/forums/viewtopic.php?p=462982#p462982 http://dl.ciph.se/raspberrypi/

Télécharger le bon fichier par rapport à la version du kernel

uname -r

sudo cp rtl8188eufw.bin /lib/firmware/rtlwifi/
sudo install -p -m 644 8188eu.ko /lib/modules/$(uname -r)/kernel/drivers/net/wireless
sudo insmod /lib/modules/$(uname -r)/kernel/drivers/net/wireless/8188eu.ko
sudo depmod -a

Ou en dur dans /etc/network/interfaces

auto wlan0
iface wlan0 inet dhcp
    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
    wpa-ssid lamaison
    wpa-psk monmotdepasse

ifup wlan0

Bluetooth

sudo apt-get install -y bluetooth bluez-utils blueman
reboot

hcitool scan
sudo bluetooth-agent 0000 AC:22:0B:65:FD:AA

Editer /etc/bluetooth/rfcomm.conf

rfcomm0 {
    # Automatically bind the device at startup
    bind yes;
    # Bluetooth address of the device
    device 11:22:33:44:55:66;
    # RFCOMM channel for the connection
    channel 3;
    # Description of the connection
    comment "This is Device 1's serial port.";
}

sudo rfcomm connect rfcomm0

Script d’auto acceptation

/etc/init.d/bluetooth-agent

### BEGIN INIT INFO
# Provides: bluetooth-agent
# Required-Start: $remote_fs $syslog bluetooth pulseaudio
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Makes Bluetooth discoverable and connectable to 0000
# Description: Start Bluetooth-Agent at boot time.
### END INIT INFO
#! /bin/sh
# /etc/init.d/bluetooth-agent
USER=root
HOME=/root
export USER HOME
case "$1" in
start)
echo "setting bluetooth discoverable"
sudo hciconfig hci0 piscan
start-stop-daemon -S -x /usr/bin/bluetooth-agent -c pi -b -- 0000
echo "bluetooth-agent startet pw: 0000"
;;
stop)
echo "Stopping bluetooth-agent"
start-stop-daemon -K -x /usr/bin/bluetooth-agent
;;
*)
echo "Usage: /etc/init.d/bluetooth-agent {start|stop}"
exit 1
;;
esac
exit 0

Utiliser la caméra

http://www.raspberrypi.org/documentation/usage/camera/raspicam/README.md

Désactiver la LED

sudo vim /boot/config.txt

disable_camera_led=1

Sortie audio

Trouver le numid pour le volume :

amixer contents

Modifier le volume :

amixer cset numid=1 -- 75%

Jouer un son WAV :

aplay /path/to/sound.wav

Jouer un son MP3 :

mpg321 /path/to/sound.mp3

Sortie vidéo

sudo apt-get install omxplayer

omxplayer myvideo.mp4

Pour passer le son à travers le HDMI :

omxplayer -o hdmi myvide.mp4

Raccourcis

Space or p   Pause/Resume
q            Exit OMXPlayer
z            Show Info

-            Decrease Volume
+            Increase Volume

i            Previous Chapter
o            Next Chapter

Left Arrow   Seek -30
Right Arrow  Seek +30
Down Arrow   Seek -600
Up Arrow     Seek +600

1            Increase Speed
2            Decrease Speed

j            Previous Audio stream
k            Next Audio stream
n            Previous Subtitle stream
m            Next Subtitle stream
s            Toggle subtitles
d            Subtitle delay -250 ms
f            Subtitle delay +250 ms

Lancer Awesome

sudo apt-get install awesome

vim .xinitrc

ck-launch-session awesome

startx

Se connecter via Serial

ls -l /dev/ttyUSB0

sudo screen /dev/ttyUSB0 115200

Pour quitter : ctrl+a k

Raspberry Pi 3 Wifi

sudo BRANCH=next rpi-update
sudo iwconfig wlan0 power off

Audio avec Hifiberry

https://jeffskinnerbox.wordpress.com/2012/11/15/getting-audio-out-working-on-the-raspberry-pi/

sudo apt-get install alsa-utils mpg321 lame mplayer

speaker-test -t sine -f 440 -c 2 -s 1

curl "https://translate.google.com/translate_tts?ie=UTF-8&q=hello%20dear&tl=en&total=1&idx=0&textlen=10&tk=104594.502926&client=t&prev=input&ttsspeed=0.24" -o tts.mp3
mplayer -ao alsa:device=hw=0.0 tts.mp3

Il faut que l’utilisateur soit dans le groupe audio :

sudo adduser pi audio

Synchroniser le temps

timedatectl status
sudo timedatectl set-timezone Europe/Paris

Désactiver le Bluetooth

Ajouter dtoverlay=disable-bt dans /boot/config.txt.

sudo systemctl disable hciuart

Désactiver wifi

Ajouter dtoverlay=disable-wifi dans /boot/config.txt.

Pico

Install the SDK:
1. In Terminal, go to your projects directory, eg. ~/git
2. Run git clone -b master –recurse-submodules https://github.com/raspberrypi/pico-sdk.git
3. Edit your .bash_profile or .zshrc and add: export PICO_SDK_PATH=”$HOME/git/pico-sdk”
Install the toolchain:
1. brew install cmake
2. brew install doxygen
3. brew install graphviz
4. brew tap ArmMbed/homebrew-formulae
5. brew install arm-none-eabi-gcc
Configure the IDE:
1. Run — or install and then run — Microsoft Visual Studio Code.
2. Click on the Extensions icon.
3. Enter CMake Tools in the search field.
4. Locate CMake Tools by Microsoft and click Install.
Set up a project:
1. mkdir PicoTest
2. cd PicoTest
3. cp ../pico-sdk/external/pico_sdk_import.cmake .
4. Create CMakeLists.txt — see listing below.
5. touch source.h
6. echo ‘#include “source.h”’ > source.c
From within Visual Studio Code, open the folder PicoTest.
When CMakeTools asks you if to configure project, say yes.
When asked to select a kit, select GCC for arm-none-eabi x.y.z.

# What CMake to start at
cmake_minimum_required(VERSION 3.12)
 
# Include the subsidiary .cmake file to get the SDK
include(pico_sdk_import.cmake)
 
# Set the name and version of the project
project(PicoTest VERSION 1.0.0)
 
# Link the Project to a source file (step 4.6)
add_executable(PicoTest source.c)
 
# Link the Project to an extra library (pico_stdlib)
target_link_libraries(PicoTest pico_stdlib)
 
# Initalise the SDK
pico_sdk_init()
 
# Enable USB, UART output
pico_enable_stdio_usb(PicoTest 1)
pico_enable_stdio_uart(PicoTest 1)
 
# Enable extra outputs (SWD?)
pico_add_extra_outputs(PicoTest)

#include <stdio.h>
#include "pico/stdlib.h"