The output lines in a GPIO subsystem are limited to a maximum current of 6 mA. The users/students should know that they need a low power/current LED for your circuit.
The value of the current limiting resistor depends on the threshold voltage of the LED, which depends on the LED color. 220Ω is OK for a blue LED, but too small for ie. an orange LED with 1V65 threshold / 6mA. This may damage the LED, or - most likely - the output line in the GPIO subsystem (= the BB CPU). Regards -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ddc54d9a-392f-4df4-a247-01e1d3346df1o%40googlegroups.com.
