Chrome Version: 62.0.3202.97 (Official Build) (32-bit)
Chrome OS Version: 9901.77.0 (Official Build) stable-channel kevin
Chrome OS Platform: Samsung XE513C24
Network info: irrelevant; multiple wifi networks

 Cr-Platform-ARC or Platform>ARC 

We are application developers of an Android app that allows businesses to sell tickets and accept credit card payments via a Bluetooth-connected payment terminal. Also, a separate Android application allows businesses to scan barcodes for gated entry. Both the credit card reader and barcode scanners are integrated via their native SDKs into our Android app (they don't use HID or keyboard emulation -- both are SPP, from what I understand) and when these Android apps run on ChromeOS, the pairing process fails to see them as devices

This is an example of the barcode scanner (we run in SPP mode for various reasons even though it does actually support HID)

https://www.socketmobile.com/products/series-7/durable/chs-7xi

This is the credit card terminal 

https://www.bluefin.com/wp-content/uploads/2016/06/Bluefin-Nomad-2.0-Data-Sheet.pdf



Steps To Reproduce:
(1) Purchase a serial Bluetooth device such as the Anywhere Commerce Nomad 2.0 credit card reader or the SocketMobile barcode scanner
(2) Attempt to initiate pairing 


Expected Result: Expected to detect the devices

Actual Result: No devices are found


Should it be expected that any type of Bluetooth device that's accessible to a standalone Android device should be accessible when running in ARC?