djdtime
Posts: 5
Joined: Wed Oct 29, 2014 3:19 am

ACT LED 'external' IC2

Tue Nov 18, 2014 1:16 am

Right now I have an external LED for SD card activity connected to GPIO17 in the pi, but my problem is that I need to use all the GPIO available on the pi, including the 17, how can I use I2C to connect the external LED?

Let's say I use GPB0, pin 1 from MCP23017. What would the command be on the /boot/cmdline.txt

/boot/cmdline.txt
bcm2708.disk_led_gpio=17 bcm2708.disk_led_active_low=0

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