Bluetooth Procedures - Bluetooth Procedures Bluetooth...

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Bluetooth Procedures Bluetooth Functionality within the NXT The NXT brick supports wireless communication using Bluetooth. The NXT brick can be connected wirelessly to three other devices at the same time but can only communicate with one device at a time. This functionality has been implemented using the Serial Port Profile (SPP), which can be considered a wireless serial port. It’s possible to send programs and sound files between NXT bricks during program execution. To reduce the power consumption; it has been implemented to only communicate up to a distance of approximately 10 meters.
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Once the Bluetooth connection has been established, you can use it for these features: Downloading programs from your computer without using a USB cable. Sending programs from devices other than your computer, including your own NXT Sending programs to various NXT units either individually or in groups. A group can contain up to three NXT devices. Connecting NXT to PC Connecting – Windows XP Connecting through Windows XP gives more problems if you don’t do it correctly. While the connection may work temporarily even if you don’t do it right, it is more prone to flaking out. To connect you must use either Window’s native Bluetooth drivers or drivers from Widcomm/Broadcom. Under my test setup (running Windows XP through VMware) connecting can be very tricky and inconsistent. I will be installing Windows through Bootcamp and retesting it in the next couple days. There is little documentation online about usingthe NXT with VMware and after spending many hours I cannot find a way that always works. There are several different methods that when combined will often, but not always, give results. Start off by resetting closing any connections and reseting on the NXT and clearing any previous NXT Bluetooth devices from the Bluetooth control panel in Windows (which can be found in the system tray or in the control panel). In ‘Bluetooth Devices’ click ‘add’ under the ‘Devices’ panel. Check ‘My device is set up and ready to be found’ and click ‘Next.’
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The NXT should show up as a new device. Select it and click ‘Next.’ If it is not listed make sure the NXT is turned on and click ‘search again.’ Next select ‘Use the passkey found in the documentation’ or ‘Let me choose my own passkey.’ I have had better luck using the latter but either should work. Enter ‘1234’ as the passkey.
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By default the passkey for the NXT is ‘1234’. Unless you choose a different passkey, click the orange button (enter) on the NXT. Click next on the computer and you should now be paired. This does NOT mean you are connected. Your computer and NXT are now connected but they cannot communicate. Getting the devices to connect is more complex and can create problems. One or a combination of the following should allow you connect.
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1) In Bluetooth Devices select the NXT and click properties. In the
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