For a project I'm looking to build a device that is capable of scanning the surroundings for BLE devices (that are discoverable) and compare them with a database. In this way I want to see what devices are close and in this way keep track of them. It's simple presence/ absence scanning. So not even distance (RSSI). But I should be able to scan for multiple devices at the same time.
Now there are plenty apps capable of detection BLE devices (light blue for instance), but I hope to build something like that with RFduino. Is this possible and if so, how to do this?