It looks like it works when the array only contains one item?

This might be miscoded. Instead of matching any of the service uuids, it might be trying to match only advertisements which contain ALL of them. I do not have a device that broadcasts moret than 1 service uuid, so unable to confirm.

Regardless it does not work with more than one service uuid. noble_uwp and other bindings do.

@pursual You're right currently we pass the service uuids as filter to the AdvertismentWatcher.

The alternative would be to watch for all and filter the advertisement manually once we receive it.

If anyone wants to provide a PR for this the steps would be:

• remove the advertisment filter https://github.com/Timeular/noble-winrt/blob/master/src/ble_manager.cc#L119-L127
• save serviceUUIDs in a class field mAdvertiementServiceUUIDs (similar to mAllowDuplicates)
• check if the received advertisement's serviceUUIDs contain any of the saved mAdvertiementServiceUUIDs https://github.com/Timeular/noble-winrt/blob/master/src/ble_manager.cc#L139

Fixed in https://github.com/tony-gutierrez/noble-winrt/tree/servicefilter which is based off of https://github.com/fido-alliance/noble-winrt