25 lines
1.4 KiB
Markdown
25 lines
1.4 KiB
Markdown
# PiLEDlights
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For the Raspberry Pi - Make LEDs blink on network and/or SD card/USB storage activity.
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hddledPi blinks a LED on any mass storage access. Not only on SD card access, but also on USB thumbdrive and hard drive activity. netledPi blinks a LED when there is activity on any network interface. Not only the built-in ethernet interface, but also on any other USB ethernet or WiFi interface.
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netledPi and hddledPi make use of Gordon Henderson's wiringPi library - wiringpi.com - so you have to have that installed in order to build the programs.
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Building the programs is easy:
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gcc -Wall -O3 -o netledPi netledPi.c -lwiringPi
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gcc -Wall -O3 -o hddledPi hddledPi.c -lwiringPi
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hddledPi uses wiringPi pin 10 by default. It is BCM_GPIO 8, physical pin 24 on the Pi's P1 header.
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netledPi uses wiringPi pin 11 by default. It is BCM_GPIO 7, physical pin 25 on the Pi's P1 header.
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Note: These pins are also used for the SPI interface. If you have SPI add-ons connected, you'll have to use the -p option to change to another, unused pin.
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Options:
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-d, --detach Detach from terminal (become a daemon),
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-p, --pin=VALUE GPIO pin (using wiringPi numbering scheme) where LED is connected
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-r, --refresh=VALUE Refresh interval (default: 20 ms)
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The programs need super-user privileges, so you have to start them with "sudo", e.g.
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sudo netledPi -d -p 29
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I have only tested them with Raspbian.
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