You're reading from Raspberry Pi Pico DIY Workshop

Product typeBook

Published inMay 2022

PublisherPackt

ISBN-139781801814812

Edition1st Edition

Concepts

Single Board Computers

Authors (2):

Sai Yamanoor

Srihari Yamanoor

View More author details

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...
```

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Raspberry Pi Pico DIY Workshop

Published in: May 2022Publisher: PacktISBN-13: 9781801814812

Authors (2)

Sai Yamanoor

Sai Yamanoor is an embedded systems engineer working for a private startup school in the San Francisco Bay Area, where he builds devices that help students achieve their full potential. He completed his undergraduate work in mechatronics engineering from Sri Krishna College of Engineering and Technology, Coimbatore, India and his graduate studies in mechanical engineering at Carnegie Mellon University, Pittsburgh PA. His interests, deeply rooted in DIY and open software and hardware cultures, include developing gadgets and apps that improve the quality of life, Internet of Things, crowdfunding, education, and new technologies. In his spare time, he plays with various devices and architectures, such as the Raspberry Pi, Arduino, Galileo, Android devices and others. Sai has earlier published a book titled Raspberry Pi Mechatronics Projects.
Read more about Sai Yamanoor

Srihari Yamanoor

Srihari Yamanoor is a mechanical engineer, working on medical devices, sustainability, and robotics in the San Francisco Bay Area. He completed his undergraduate studies in mechanical engineering from PSG College of Technology, Coimbatore, India and graduate studies in mechanical engineering at Stanford University. He is certified in SolidWorks, simulation, sustainable design, PDM as well as in quality and reliability engineering and auditing. His has a wide range of interests, from DIY, crowdfunding, AI, travelling, photography to gardening and ecology.
Read more about Srihari Yamanoor

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