MadhavJivrajani / halp

Display a message in morse code on your capslock LED, keyboard backlight or using your screen brightness!

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halp

halp is a command line utility that lets you display messages in morse code on your capslock LED, keyboard backlight (if you have it) or using your screen's brightness!

Note:

halp will only work if you're running Linux. The original purpose of developing this was to learn more about the concept of 'everyhting in linux is a file' and learn more about how permissions in linux work. The idea originated after watching this video.

Installation

Use the executable:

curl -sSL https://github.com/MadhavJivrajani/halp/releases/download/<tag>/halp --output halp
chmod +x halp
mv halp /usr/bin # to make the executable available system wide

Installation can also done using the go get command which will take care of installation of any libraries and dependencies nescessary. This will also install the halp executable which can be used anywhere in the termnial provided $GOPATH/bin is in your PATH.

go get -u github.com/MadhavJivrajani/halp

Or you can clone this repository and work directly with the halp executable!

git clone https://github.com/MadhavJivrajani/halp.git
cd halp
go build -o halp main.go
mv halp /usr/bin # to make the executable available system wide

Usage:

A verryyy normal and usual application built to help you send SoS messages.

The tool will by default switch off the LED before displaying the morse code
message and will restore it back to this initial state when the message finishes displaying

Syntax:
halp -m <message>

Usage:
  halp [flags]
  halp [command]

Available Commands:
  help        Help about any command
  reset       Reset the resource state to 'value'

Flags:
      --config string    config file (default is $HOME/.halp.yaml)
  -h, --help             help for halp
  -k, --keyboard         use keyboard backlight
  -m, --message string   message to diplay in morse code
  -p, --path string      /path/to/capslockLED (default "/sys/class/leds/input3::capslock")
  -s, --screen           use screen backlight

Use "halp [command] --help" for more information about a command.

Commands:

reset

It will default to a capslock LED path, you can try using the -s and the -k flags,
to reset to value for screen and keyborad resources respectively

Syntax:
halp reset [--keyboard][--screen][--path][--value]

Usage:
  halp reset [flags]

Flags:
  -h, --help          help for reset
  -k, --keyboard      reset keyboard backlight
  -p, --path string   /path/to/resource (default "/sys/class/leds/input3::capslock")
  -s, --screen        reset screen backlight
  -v, --value int     reset the resource to this value

Disclaimer

I am not responsible for anything going wrong with the system halp is run on, this is an educational project.

About

Display a message in morse code on your capslock LED, keyboard backlight or using your screen brightness!

License:Apache License 2.0


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