how can i communicate RFID rfr900 with app
I have a Bluebird RFID Reader model RFR900, and I need to develop an application in Flutter to display the LiDAR information of the Tags through the Reader, but I cannot find the communication SDK for this reader on the internet. I have already contacted the manufacturer, but they have not responded to me, and on several websites that sell it, they claim that it is an SDK that is easy to integrate, but I cannot find it anywhere. Is there any other way to be able to read the tags through this RFR900 reader and integrate it into an application? If anyone can help me, please.