board_android-IoT/m210 2019. 4. 10. 18:25

https://bradkim06.tistory.com/entry/%EC%A7%84%EC%A0%80%EB%B8%8C%EB%A0%88%EB%93%9C-NFS%EB%AA%A8%EB%93%9C%EB%A1%9C-%EB%B6%80%ED%8C%85%ED%95%98%EA%B8%B0?category=464406

 

진저브레드 NFS모드로 부팅하기

mtdpart=80000 400000 3000000 bootdelay=0 baudrate=115200 netmask=255.255.255.0 bootcmd=nand read 20008000 600000 500000;nand read 21000000 B00000 300000; bootm 20008000 21000000 ipaddr=180.168.1.121..

bradkim06.tistory.com

 

posted by cskimair
:
board_android-IoT/raspberry_pi3 2017. 6. 16. 17:36

Video Play in Vertical


https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=77057


"How to play a video in full screen i.e it fits to display?"


$ omxplayer --orientation 90 your_video


'board_android-IoT > raspberry_pi3' 카테고리의 다른 글

Qt Cross compile for Raspberry Pi3  (0) 2019.04.17
RaspberryPi3 Qt cross-compile environment in windows  (0) 2019.04.16
getting-cpu-temperature  (0) 2017.05.03
raspberry pi2 webrtc camera  (0) 2017.04.13
disable the blank screen  (0) 2017.04.13
posted by cskimair
:

https://www.cyberciti.biz/faq/linux-find-out-raspberry-pi-gpu-and-arm-cpu-temperature-command/


#!/bin/bash
# Script: my-pi-temp.sh
# Purpose: Display the ARM CPU and GPU  temperature of Raspberry Pi 2/3 
# Author: Vivek Gite <www.cyberciti.biz> under GPL v2.x+
# -------------------------------------------------------
cpu=$(</sys/class/thermal/thermal_zone0/temp)
echo "$(date) @ $(hostname)"
echo "-------------------------------------------"
echo "GPU => $(/opt/vc/bin/vcgencmd measure_temp)"
echo "CPU => $((cpu/1000))'C"


chmod +x my-pi-temp.sh



./my-pi-temp.sh

posted by cskimair
:
board_android-IoT/raspberry_pi3 2017. 4. 13. 19:51

https://www.rs-online.com/designspark/building-a-raspberry-pi-2-webrtc-camera



https://www.raspberrypi.org/forums/viewtopic.php?f=45&t=123045



http://stackoverflow.com/questions/14610945/how-to-choose-input-video-device-for-webrtc



UV4L, two-way WebRTC Data Channels demo

https://www.youtube.com/watch?v=ZWgCejtspTo&feature=youtu.be&list=PLT2HCg4Nbo1upDmqPFxyT8koQwvCcUOph



http://www.linux-projects.org/rpi-videoconference-demo-os/

posted by cskimair
:
board_android-IoT/raspberry_pi3 2017. 4. 13. 17:41

http://www.geeks3d.com/hacklab/20160108/how-to-disable-the-blank-screen-on-raspberry-pi-raspbian/


$ sudo nano /etc/lightdm/lightdm.conf
[SeatDefaults]
xserver-command=X -s 0 -dpms


posted by cskimair
:
board_android-IoT/raspberry_pi3 2017. 4. 11. 09:43

http://raspberrypi.stackexchange.com/questions/54365/how-to-download-and-install-python-3-5-in-raspbian



First of all you need to get your dependencies right. That mostly depend on what you have already installed previously. So for a vanilla fresh Raspbian (jessie), you will (approximately) need to make sure you have these:

sudo apt-get install build-essential libc6-dev
sudo apt-get install libncurses5-dev libncursesw5-dev libreadline6-dev
sudo apt-get install libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev
sudo apt-get install libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev

The rest is simple. First download and extract...

cd $HOME
wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tgz
tar -zxvf Python-3.5.2.tgz

...and then compile with:

cd Python-3.5.2
./configure       # 3 min 13 s
# We have 4 processors, so let's use 4 threads
make -j4          # 8 min 29 s
sudo make install # ~ 4 min

Save your SD card space:

cd ..
sudo rm -fr ./Python-3.5.2*


posted by cskimair
: