The Instagram feed module allows you to show posts associated with an Instagram account. Setup requires you to enter an access token in the Site Config app. To do so, go to the app, scroll to the API Keys section and click the "Retrieve Your Access Token Here" link. Click the green "GENERATE ACCESS TOKEN" button and follow the prompts (you must be logged in to the Instagram account for which you are generating a token). Enter the token and the Site Config app and save.
To generate an Instagram feed on a page: