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When pixy camera is connected through an Arduino, pixyMon will show"error:No Pixy devices have been detected"

When pixy camera is connected through an Arduino, pixyMon will show"error:No Pixy devices have been detected".
So we cannot see the realtime video when an Arduino is connected but only see information through the serial monitor?

Hello Yibo,
You may have trouble if you power Pixy through your Arduino because some Arduinos don’t have enough spare current. This page describes more:

http://cmucam.org/projects/cmucam5/wiki/Powering_Pixy

(Look for the “Power Connector” section.)

Edward