![]() You might want to cover part of the housing with a soft cloth as you remove screws. Note: Avoid scratching the external housing by using care when removing the screws. Warning: The screws in the battery bay require holding the screwdriver at an angle. The computing power of the Pi 4 makes it an excellent replacement for a desktop computer and still retains it's very small price tag.1. The release of the Pi 4 is an impressive step toward that goal. The Pi 4 is an Amazing Step Toward an Affordable Desktop Computing Solution: The Raspberry Pi Foundation's stated goal is to provide an affordable computer option to everyone around the world.If you decide to purchase and use a Pi 4 for other purposes in the future, the Raspberry Pi and coding skills you've learned in our Intro to Robotics course are fully transferable to the Pi 4. The Skills You Learn in Our Course are Transferable to a Pi 4: While a Pi 4 may not be the right model to use to build a robot, there are some amazing things you can do with them (see below).If You Are Interested in Using a Pi 4 for Other Purposes. Without a GPIO header, you can't attach the Pi to the breadboard containing your robot's electronic circuitry. Unfortunately there is only one port available so you can attach either a fan or a GPIO header but not both. At this time, the Pi 4 really needs external cooling and generally that means attaching a fan. You'd Need to Keep the Pi 4 Cool: The increased power consumption of the Pi 4 also increases its cooling requirements over the Pi 3.Finding a battery pack to power a Pi 4 is not only be difficult and expensive but there are potential safety issues with a battery pack containing that much capacity (think fire). The Pi 4 uses over twice as much power as the Pi 3B. A Robot is Less Fun if You Have to Plug It In: Ideally a mobile robot should be powered via a battery pack (if you need to use a cord to power your robot, your robot's range will be pretty limited).Since Level D of our Intro to Robotics program involves building a fully mobile robot, the Pi 3B is the superior model for such a project: Instead the different models available are appropriate for different types of projects. ![]() The model numbers for the Raspberry Pi are based on the order in which the models were released-it is not an indication of the superiority of any particular model. There are now several versions of the Raspberry Pi on the market and we are often asked why we include a Pi 3B in our kits instead of a Pi 4. ![]()
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