We have connected the billing printer in tablet using IoT technology with Wifi/Ethernet. We used different printer SDK for connection.
We have integrated drawer with printer for cash. For Credit & Debit Card Payment we have added Tyro SDK; an EFTPOS of Australia.
Manage Inventory in AWS server and Invoice with Xero API integration. As a result, the vendor can manage it from anywhere with no lost data.
Integrate three different payment gateways PayPal,eWay, and Westpac bank. We have used SDK, API & Support of Westpac for approval.