Setting up the SumUp Air
From your tablet, pair the SumUp air to the tablet via Bluetooth, the SumUp air must be turned on. Ensure you've created a SumUp account and added your bank account details so SumUp knows which account to pay into.
Setting up the Dojo Go
View Dojo's How to install the Dojo Go documentation to get started. Once the device has been activated tap 
, then Settings and enter the supervisor code. Select Card machine mode and select Pay at counter. This switches the device to integrated payment mode.
Setting up the Paymentsense card machine
View the Paymentsense user guide to get started. The guide also outlines how to take payments, process refunds, run reports, change passwords and covers troubleshooting issues.
Once setup you'll need to change the default mode on the card reader. Tap F4, enter the supervisor code and select OFF as the standalone mode. Tap the Next button and the card machine will reboot to change the mode. This switches the device to integrated payment mode.