Just Sharing Knowledge on Robotics, Electronics and Programming

Monday, March 6, 2017

No module named cv2 in Linux / Orangepi / Raspberry Pi



Masukkan Kode Disini



If you facing the experience of using cv2 module like this

import cv2
ImportError: No module named cv2
 
 
then the solution is like a following command on terminal
 
sudo apt-get install python-opencv
 
 
 

Sunday, March 5, 2017

Resize file system on SD card on Orange Pi PC Linux


if u facing the experience of the disk space is lower than the actual size of SD card  used in orangepi PC, then you can do the following trick



First

$ fdisk -l

and you should know the partition name...

and in my case..

$ fdisk -c /dev/mmcblk0

input 'p'

and show information of partition...

may be.....taget partition is 2.....

input "d"       -> deldet partition....

input "2"      -> target delete partition...

ipput "np"     -> set new partition information...

input "p"      ->set primary

input "2"     -> target partition...

and input first sector number.......
(above...you type "fdisk -l" and find that number ( /dev/mmcblk0p2 's start number )

and request last sector....and push enter key....

and input "w"    ->write partiotion information....

System show error ....ignore....

$ reboot

$ resize2fs /dev/mmcblk0p2

$ df- h

done