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Without 3rd party hardware or software, the only way to do this is to use Bluetooth messages. For example, you could write motor power to a Bluetooth mailbox on one NXT. The other NXT just has a simple program with a loop that reads the Bluetooth mailbox and connects it to a motor block.


It's possible to control a NXT with the iPhone/Smartphone although this method requires either another iPhone, Smartphone, Laptop or PC with access to the internet. The full programming and building instructions for the 'iPhoneRobot' can be found on BattleBricks. The source code for the server application and the NXT program is also available. It's a ...

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