Flask is a Python framework to set up web servers using Python. In this topic, we will look at how we can set up a web server on BeagleBone Black using Python. The first thing we need to do to get started is to install the Python-Flask package on your BeagleBone Black from the Python package index. The steps below will walk you through how you can set up Flask and test it, followed by writing a Python code to interface it with your relay circuit. We will see this in the next topic followed by the main project of controlling an AC bulb from the Internet in the last topic of this chapter:
Step 1: Installing PIP as follows:
sudo apt-get install python-pip:You should see that it's been already installed, since we have the latest version of Debian installed, and its already available in version. Some of the other versions might not have this, and it will be installed if it's not available, or upgraded if a newer version is available than the one that is installed...