Why iOS 7.0.4 could not find the device nRF51822, while the dongle used as a master could ?

[Minghao]

Hi,

I used the DK board PCA10005 as the device and the dongle used as a master running healthThermoDemo .NET application. The .NET master could find the device properly, and could communicate with the device to read the thermo data. When I tried to replicate the dongle with the iPhone 5s with iOS 7.0.4 to do the same thing, iPhone could not find the device at all. Any explainations?

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[Ole Morten]

How did you do the discovery from your iPhone? iOS devices will not show BLE devices in the Bluetooth Settings, so you have to use an app to be able to discover such devices. I've often used LightBlue for evaluation purposes, or our nRF Utility app to actually connect and receive health measurements.

[Ole Morten]

That is true, what I said initially was imprecise. Only devices that are either currently connected, previously bonded or advertises a service that is natively supported by iOS (ANCS solicited, HID) will show up in the Bluetooth settings.