Step 5: Take a Credit Card Payment
Connect a Square Reader and complete a credit card transaction. If you have been working with a virtual device, you need to deploy the sample application to a physical device and authorize Reader SDK with a new mobile authorization code before continuing.
If you have never taken card payments before, activate your account for credit card payments. You see a green Activate button if you still need to activate your account. If you do not see the button, you are already activated.
Connect a Square Reader:
If you have a Contactless and Chip Reader, choose Settings in the sample application, choose Reader Settings, and then follow the prompts. If you run into trouble connecting the Reader, see Set Up the Square Reader for Contactless and Chip for assistance.
If you have a Magstripe Reader, plug it into your mobile device and grant the Reader microphone permissions if prompted.
Choose the Charge $2.00 button to complete a credit card transaction.
Congratulations! You just completed a credit card transaction with a Square Reader and Reader SDK.