Helcim Payment Gateway:
Odoo Hubspot Connector is one of the module in Odoo which we can use for sync the opportunity from hubspot like contact,companies and deals.
POS Payment using Square Terminal
'Penalty or Interest on Due Invoices' can create penalties or interest on past-due invoices on a monthly or annual basis and it keeps track of both automatically.
POS Payment using Stripe Terminal
You can use the Stripe Terminal to process payments for invoices and sales orders.
This is base module to add Stripe payment terminal module in POS.