Hello, I am working with blueZ 5.50 on a linux embedded device with kernel 4.14. Now I have to implement a use case where the linux embedded device communicates as a central device with a few sensors through Bluetooth LE characteristics and at the same time it should advertise some data and accept at least one incoming connection from a Smartphone as a peripheral device for maintenance cases. I haven't found any information about blueZ is supporting both LE roles at the same time. I have already tried it now for 2 days to get this use case to work and I found a few limitations for which I didn't find any solution. I was not able to advertise any data while my device had an active connection to a peripheral device. Also while the Smartphone is connected to my embedded device(peripheral), I don't receive any advertised Data from any sensor and I cannot connect to any sensor. The Bluetooth Hardware Module which I am using on the embedded Linux System supports Bluetooth 4.2. From the Bluetooth Standard I have found that concurrent use of both Bluetooth Low Energy Roles should be supported since Bluetooth 4.1. Is it possible from blueZ Stack side to implement this use-case? If yes, can you give me some hints what I have to consider to get this case working? If no, have you got a timeline when it will be supported or is this no planned to implement in near future? Thanks for your answer, Thomas
