You're reading from Raspberry Pi Pico DIY Workshop

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Published inMay 2022

PublisherPackt

ISBN-139781801814812

Edition1st Edition

Concepts

Single Board Computers

Authors (2):

Sai Yamanoor

Srihari Yamanoor

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Wiring up the giant seven-segment display

In this section, we will wire up the display to the Raspberry Pi Pico. We used the Pico Omnibus – Dual Expander from Pimoroni. This enables interfacing the wireless pack and wiring up the seven-segment display. The steps to interface the display are as follows:

Assemble the individual seven-segment digits. The driver needs to be soldered onto the back of each digit. Soldering the driver is a very simple step and we followed the instructions available from SparkFun (link: https://bit.ly/3hLUobk).
Then, we connected the seven-segment driver to the following pins of the Pico, as shown in the following figure:
- Latch | GP17
- Clock | GP18
- Serial | GP19
- 5V | VBUS
- 12V | External power supply

The following figure shows the Fritzing schematic for the connections between the seven-segment driver and the Raspberry Pi Pico:

Figure 6.7 – Fritzing schematic to interface the Pico to the seven-segment driver

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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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