Controlling More than One Device

We are doing a study and is going to create an android application with the help of Arduino and bluetooth module. I would like to know if a single Arduino Uno is capable of handling and controlling more than 1 device? We are planning to have 1 arduino with 4 different devices to be controlled.

cassie_vjc: We are doing a study and is going to create an android application with the help of Arduino and bluetooth module. I would like to know if a single Arduino Uno is capable of handling and controlling more than 1 device? We are planning to have 1 arduino with 4 different devices to be controlled.

Define "device"

Please do not cross-post. This wastes time and resources as people attempt to answer your question on multiple threads.

Other post deleted.

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I can get the Uno to deal this hundreds of devices - it just depends of what type of device!

Mark