Using VEX IQ (1st generation)? See this article.
Notice there are two different indicator lights on the VEX IQ (2nd generation) Controller.
Power LED
The first indicator light is called the Power LED.
There are three possible colors of the Power LED to indicate the status of the VEX IQ Controller Battery and of the VEX IQ Radio Link:
| Power LED Color | Controller Status | Controller Battery Status | |
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Solid Green | Controller ON - NOT paired with a Brain | Controller Battery level sufficient |
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Blinking Green | Controller ON - Paired with a Brain | Controller Battery level sufficient |
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Solid Yellow | Actively Pairing | |
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Solid Red | Controller ON | Controller Battery level low |
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Blinking Red | Controller ON - Paired with a Brain | Controller Battery level low |
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Fast Red Blinking | Firmware on your controller is failing to load. View this article. | N/A |
If the Controller is not wirelessly connected to a VEX IQ Brain, see this article for more information about wirelessly pairing a VEX IQ (2nd generation) Controller and Brain.
Charge LED
The second is called the Charge LED. This LED will only illuminate when the Controller is plugged into a charger.
There are three possible colors for the Charge LED: green, red, and gray.
| Charge LED Color | Status | |
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Solid Green | Controller Battery is completely charged |
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Solid Red | Controller Battery charge in progress |
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Blinking Red | Controller Battery fault |
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Off | Not charging |
See this article for information on how to charge a VEX IQ (2nd generation) Controller.