Using the display

In this section, we will discuss driving the displays in two ways: with a simple web server running on the Pico and via a serial port.

Let's get started!

Simple web server

In this example, we will host a simple web server on the Pico so that we can update the display using a browser from any device on a local network. This example is based on the esp32spi_wsgiserver example made available from Adafruit (link: https://bit.ly/3itHrmY). We made some simple modifications to the code sample to adapt it to our example. The modified code sample is available for download from this chapter's repository as code_server.py (link: https://bit.ly/3hqWA7X).

The changes made to the server example include the following:

• Importing the seven_segment driver so that we can update the display when there is a request:

  import seven_segment

• We updated the GPIO pin numbers to drive the ESP32 wireless pack:

  # If you have an externally connected ESP32:
  esp32_cs...