Hardware/Power LED
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The Wii's Power LED consists of 2 colored LEDs: green and red.
LED triggers
Green LED: Hollywood is recieving power.
Red LED: Broadway is not recieving power (i.e. the inverse of it's DC/DC converter power state)
LED state table
| Broadway is on? | Hollywood is on? | Red LED state | Green LED state | Result |
|---|---|---|---|---|
| No | No | On | Off | Red |
| No | Yes | On | On | Yellow |
| Yes | Yes | Off | On | Green |
Controlling
Unfortunately, the Power LED is not directly software controllable. However, with code running on Starlet, one may switch between the green and yellow states by turning Broadway on or off using the DC/DC converter's GPIO[check], and from the green to red state (but only one-way) by using the shutdown GPIO.