Integrate Geidea payment terminal devices (Span device) with LS Retail BC v14

Looking for some one expert for the integration of Geidea (geidea.net) payment terminal devices with LS Retail v14 (BC v14), please looking for someone who have done similar project and have experience of working in LS Retail application - Geidea has provided DLL files with sample project and documentation - I have multiple store setup so the integration will be implemented on all stores

NOTE: Currently we have payment terminal devices (old model) and they are already integrated but the same intgeration is not working with the latest model devices and as per geidea DLL has been upgraded for latest devices