How to Read Indicator Lights on the VEX IQ Robot Brain

The color of the Brain’s LED indicates the status of the Brain, the VEX IQ Robot Battery, and the VEX IQ Radio Link.

LED Color Status

Solid Green Brain ON - Robot Battery level sufficient - with NO Radio Link (searching).

Blinking Green Brain ON - Robot Battery level sufficient - with good Radio Link. 

Solid Red Robot Battery level low - with No Radio Link

Blinking Red Robot Battery level low - with good Radio Link

Click either of these links for further instruction: