Open Source
Wednesday, May 13, 2020
Electrostatics …the branch of physics that studies the nature of charges that’s not moving. - ppt video online download
Electrostatics …the branch of physics that studies the nature of charges that’s not moving. - ppt video online download: Static Electricity & Electric Current How are they related? What’s the difference in them? How do they relate do the study of electricity? Where (in our daily lives) do we see examples of their use? Can you measure them? How?
Friday, June 9, 2017
Take Screenprint in Raspberry pi
Install scrot
sudo apt-get install scrot
To select a frame
$ scrot -s
sudo apt-get install scrot
To select a frame
$ scrot -s
Sunday, December 4, 2016
Changing port number on openHAB 2.0
export OPENHAB_HTTP_PORT=8011
The above export was not working, so i added the below property
sudo nano /etc/default/openhab2
OPENHAB_HTTP_PORT=8090
OPENHAB_HTTPS_PORT=8053
The above export was not working, so i added the below property
sudo nano /etc/default/openhab2
OPENHAB_HTTP_PORT=8090
OPENHAB_HTTPS_PORT=8053
Battery Status Linux
upower -i $(upower -e | grep BAT) | grep --color=never -E "state|to\ full|to\ empty|percentage"
amesh@linux-3ykp:~> upower -i $(upower -e | grep BAT) | grep --color=never -E "state|to\ full|to\ empty|percent
age"
state: charging
time to full: 58.8 minutes
percentage: 69%
ramesh@linux-3ykp:~> upower -i $(upower -e | grep BAT) | grep --color=never -E "state|to\ full|to\ empty|percent
age"
state: discharging
time to empty: 32.0 hours
percentage: 70%
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