How to deploy specific branch (e.g develop) to a specific heroku project

I use circleci to build and deploy my nodejs app from bitbucket to heroku. Until now I have been using a simple orbs for this task:

version: 2.1
  heroku: circleci/heroku@0.0.1
      - heroku/deploy-via-git

Now I am about to have 2 heroku projects: stating and master. How can I setup circleci so that each push to bitbucket develop triggers a deploy to heroku staging and each push to bitbucket master triggers a deploy to heroku production?