I have a raspberry pi 2 running windows IOT.
I've got 2 of these USB TTL convertors ( https://www.amazon.co.uk/gp/product/B00 ... UTF8&psc=1) so i can connect a finger sensor and a 3g modem.
Currently when i only have one of the units connected it works fine, but when i try and run my app with bith USB adapters connected the serialdevice is not recognised.
It show there are 3 serial items (1 is the on board UART ).
according to the micorsoft online demo rpocject https://developer.microsoft.com/en-us/w ... rialsample there is an issue that only the first Serial item is recognised!!
Has anyone found a way to get round this.