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What is maximum number of BLE connections that can be made with the nRF51422?

Thomas

What is maximum number of BLE connections that can be made with the nRF51422? I see that the the nRF51822 will support 8 in a star network using the 120 soft device.

Thanks in advance, -Thomas

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    Yes, all code that works on nRF51822 should work on nRF51422 if I'm not mistaken. nRF51422 just has the ability to run ANT+ enabled softdevices in addition. You can use the S120 to connect to 8 BLE peripheral devices, but it cannot function in the peripheral role (i.e. for advertising). The S130 alpha can do both roles concurrently, but is limited to 3 central and 1 peripheral link. None of these SoftDevices can do ANT+ for the time being.

    For your project, it should be enough to use the S120 as a master and some peripheral devices as slaves (S110, or S130 in peripheral role). For your number of links, there should be minimal overlap of connections even at short connection intervals. If 3 slaves links had been enough, you could use 4 devices and either have a tree topology where the master unit collects, parses and sends data to another central.

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    Yes, all code that works on nRF51822 should work on nRF51422 if I'm not mistaken. nRF51422 just has the ability to run ANT+ enabled softdevices in addition. You can use the S120 to connect to 8 BLE peripheral devices, but it cannot function in the peripheral role (i.e. for advertising). The S130 alpha can do both roles concurrently, but is limited to 3 central and 1 peripheral link. None of these SoftDevices can do ANT+ for the time being.

    For your project, it should be enough to use the S120 as a master and some peripheral devices as slaves (S110, or S130 in peripheral role). For your number of links, there should be minimal overlap of connections even at short connection intervals. If 3 slaves links had been enough, you could use 4 devices and either have a tree topology where the master unit collects, parses and sends data to another central.

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