The Tessel board is a versatile microcontroller that can be programmed with JavaScript and is equipped with various modules, including a camera module that allows users to capture and publish photos to a real-time picture feed. This blog post provides a guide on setting up and programming the Tessel camera with JavaScript to enable photo-taking capabilities. The setup involves cloning the necessary directory, connecting the Tessel board to WiFi, and installing the camera package using npm. Users are instructed to connect the camera module to the board, power it on, and verify the connection to WiFi. The process includes running specific code located in the /projects/streaming-camera directory to enable the camera's functionality, with options to modify the code for testing purposes. The instructions also cover using separate terminal commands to confirm server and client-side operations, with the potential to establish a real-time camera feed, as detailed in a subsequent series installment.