I need to get data from about 200 sensors in to a central Linux system wirelessly. I'm attracted to using Bluetooth for this since I can buy the radios so cheaply. The sensors are quiet most of the time. Occasionally (once an hour) they will record an event. This event need to be quickly communicated to the central node. Upon receiving the event the central node may send out a broadcast message instructing groups of sensors to do something. Can I implement this has a direct HCI layer application? The 200 sensors would be in parked state 99% of the time. When they get an event they ask the central node to unpark. Then they send the event data (a couple of bytes) to the central node. Central node would then broadcast a couple of byte activation node depending on the event id. Can I broadcast to all of the parked nodes? Power is not a problem in the sensor nodes. The sensors have a basic microcontroller in them. I can add a HCI Bluetooth chip (BC4-ROM). Alternatively I can look at something like a BC4+flash module. Or is Bluetooth totally unsuited to this application? -- Jon Smirl jonsmirl@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
