this raspberry pie Since its launch in 2012, it has sold 31 million units, but if you don’t already own one—or you need to buy a new one for a specific project—the choice can be a little daunting. When you include older models that are still being manufactured, there are more than a dozen different Raspberry Pi boards on sale.
Why do I need a Raspberry Pi
Every self-respecting tech geek Should have at least one Raspberry Pi. Any Raspberry Pi can be used as a secondary computer for e-mail and web surfing, but even the most high-end models, Raspberry Pi 4, Not as fast as low-end Windows PCs. The real fun begins when you use Pi for projects, which range from robots to retro arcade machines to home media servers, security cameras and even fart detectors.We listed The best Raspberry Pi project Inspiration every month.
The magic is the combination of scalability, small size, low power consumption and low cost of Raspberry Pi.thank you very much 40 GPIO pins of Pi, You can connect the circuit board to a large number of lights, motors, sensors, and other I/O devices. There is a huge HAT (hardware attached to the top) ecosystem, with daughter boards connected to GPIO pins and providing functions such as e-ink displays, motor drivers, or power over Ethernet.
Even if you are not interested in becoming a “manufacturer” and turning the Raspberry Pi into a device, a single board computer can be an excellent game emulator, streaming media player, or web server. Since Pi’s official operating system, Raspberry Pi OS (previously known as Raspbian) is a form of Linux, it is also a great way to learn and use Linux without having to install an operating system on your main computer.
Raspberry Pi models to consider
If you search carefully, you will find that there are more than two dozen Raspberry Pi SKUs for sale, but only a few are currently worthy of consideration. The Raspberry Pi Foundation, the non-profit organization that developed the Raspberry Pi, doesn’t like EOLing (end of life) old products, just in case industrial customers need to replace the circuit boards they bought in 2014. There are also some Raspberry Pi computing modules that industrial customers plug into their custom motherboards.
However, for end users, these are the best Raspberry Pi models to choose from.
|Model||Suggested retail price (USD)||CPU||RAM||wireless||Input/output port|
|Raspberry Pi 4 B (8GB)||75 USD||1.5GHz, 4-core Broadcom BCM2711 (Cortex-A72)||8GB||802.11ac / Bluetooth 5.0||2 USB 3.0, 2 USB 2.0, 1 Gigabit Ethernet, 2 micro HDMI|
|Raspberry Pi 4 B (4GB)||55 USD||1.5GHz, 4-core Broadcom BCM2711 (Cortex-A72)||4GB||802.11ac / Bluetooth 5.0||2 USB 3.0, 2 USB 2.0, 1 Gigabit Ethernet, 2 micro HDMI|
|Raspberry Pi 4 B (2GB)||35 USD||1.5GHz, 4-core Broadcom BCM2711 (Cortex-A72)||2GB||802.11ac / Bluetooth 5.0||2 USB 3.0, 2 USB 2.0, 1 Gigabit Ethernet, 2 micro HDMI|
|Raspberry Pi 3 B+||35 USD||1.4GHz, 4-core Broadcom BCM2837B0 (Cortex-A53)||1GB||802.11ac, Bluetooth 4.2, Ethernet||4 USB 2.0, HDMI, 3.5mm audio|
|Raspberry Pi Zero W||10 USD||1 GHz, 1-core Broadcom BCM2835 (ARM1176JZF-S)||512MB||802.11n / Bluetooth 4.1||1x micro USB, 1x mini HDMI|
|Raspberry Pi Zero WH||17 USD||1 GHz, 1-core Broadcom BCM2835 (ARM1176JZF-S)||512MB||802.11n / Bluetooth 4.1||1x micro USB, 1x mini HDMI|
|Raspberry Pi Zero||5 USD||1 GHz, 1-core Broadcom BCM2835 (ARM1176JZF-S)||512MB||not applicable||1x micro USB, 1x mini HDMI|
Raspberry Pi 4 B (2GB)
As the latest and fastest Raspberry Pi, Pi 4 B is powered by a 1.5 GHz quad-core processor and is equipped with 2 or 4GB of RAM, which is a big improvement over the previous generation Pi, which was up to 1GB. It mixes USB 3.0 and 2.0 ports, and the old model only has a slower standard and dual HDMI output to support multiple displays. The suggested retail price is US$35, and 2GB is the new mainstream Raspberry Pi for the masses, so if you want flexibility or don’t know what you want to do with the Pi, this is a model worth buying.
Raspberry Pi 4 B (4GB)
If you plan to spend any time doing productivity work, programming or surfing the web on your system, please purchase the 4GB version of Raspberry Pi 4 B. The extra memory makes multitasking or opening several tabs easier.
Raspberry Pi Zero W
This small and inexpensive Raspberry Pi measures only 2.6 x 1.2 x 0.2 inches (66 x 30.5 x 5 mm) and weighs only 0.3 ounces (9 grams). It is not the fastest Pi — it uses a 1GHz single-core CPU and only 512MB of RAM — but it is sufficient for many tasks, especially those involving driving lights, motors, or cameras. Unlike its cheaper sibling product, Raspberry Pi Zero, Zero W has built-in 802.11n Wi-Fi and Bluetooth 4.0. However, Zero W is not connected to the GPIO pins, only their holes; you need to buy a set of pins and solder them (or get a solderless kit). This Pi also does not have a full-size USB port, but uses a micro USB, so you may need some kind of adapter.
Raspberry Pi Zero WH
This version of Raspberry Pi Zero W is pre-soldered with GPIO pins. This model is not sold in as many locations as the regular W, so it may be difficult for you to find it.
Raspberry Pi Zero
The cheapest Raspberry Pi, Zero is the same as Raspberry Pi Zero W, but without Wi-Fi or Bluetooth. You can connect an Ethernet or Wi-Fi dongle via USB to make it online, or you can share your PC’s Internet connection with it via USB.
Raspberry Pi 3 B / 3 B+
These previous generation models are slower than 4 B and lack some key features (dual display support, USB 3.0), but there are more cases and accessories that can be used with them. They also use standard HDMI cables, which can get power from many standard cell phone chargers and even USB ports on PCs (2.5 amps, 5 volts recommended), so you probably already have the cables you need. Raspberry Pi 3 B / 3 B+ also generates much less heat than 4 and consumes less power, so if you want to make a well-running project, it will be passively cooled, and you can find 3 at a reasonable price B / 3 B+, this is a reliable choice. The difference between 3 B and 3 B+ is small. The latter has a 200 MHz CPU clock boost, faster Ethernet, and 802.11ac (vs. 802.11n) Wi-Fi.
Raspberry Pi use case
Here are some specific Raspberry Pi use cases and our recommendations for each use case.
1. I just want to start using Raspberry Pi
The most cost-effective general-purpose Raspberry Pi is Raspberry Pi 4 B (2GB). It is powerful enough for almost any project you invest in, and can even be used for some light surfing. However, if you can spend an extra $20, you can’t go wrong with buying a 4GB device.
2. I want to play old games on my Raspberry Pi (via simulation)
Raspberry Pi 4 B (2GB) is absolutely powerful enough to run any leading simulation platform. However, if you find a lower price Raspberry Pi 3 B or 3 B+, they can also be used with RetroPie.
3. I want to build a security camera/smart home device.
Many people use Raspberry Pi to build devices for the home. Maybe it’s a motion-sensing security camera or a networked radio, or an air quality sensor with a tiny display that can display temperature and other key data points. For these types of projects, Raspberry Pi Zero W may be your best choice, because it is small and light, and can be put into compact gadgets or hung on the wall. Even better, the Pi Zero W doesn’t use so much power, and usually only gets less than 200 mAh of juice, which allows it to run for a long time on the battery.
4. I want to run a web server.
It’s easy Turn your Raspberry Pi into a web server, Even Pi Zero can run Apache, the most popular server software. However, if you want users to actually be able to download content without waiting a whole day, please purchase Raspberry Pi 4 (2GB). If you have a lot of concurrent users, then 4GB will give you some improvement. If you run a huge database on the server, you might benefit from the 8GB model.
5. I want to build a robot.
The answer here actually depends on the complexity of the project. If it’s just a simple robot vehicle you send around the living room, then you might be able to use Pi Zero W/WH with GPIO pins (you need wireless to control the robot). However, if you want to add a bunch of sensors or any type of machine learning to your project, use a 2 or 4GB Raspberry Pi 4 B.
6. I want to do image recognition or machine learning.
Although you may use the Raspberry Pi 4 B (2GB) model, you may benefit from the increased RAM on the 4GB device, although the 8GB capacity may be a bit too large.You may also want to consider attaching Coral USB accelerator To improve AI performance.
7. I want to use Raspberry Pi like a PC.
If you plan to spend a good time in the window environment of Raspberry Pi OS, surf the Internet, write Python programs or multitask, then 4GB Raspberry Pi 4 B is your best choice. You can use the 2GB model, but that amount of RAM can easily be exceeded, especially if you use a Chromium-based browser and open multiple tabs.this Raspberry Pi 4 (8GB) It is also a good choice, but with the current software, it will be difficult for you to use more than 4GB of space.
8. I want to build a wearable device (smart watch, smart clothing).
Raspberry Pi Zero W is the lightest and lowest power option. It is also easier to hide it in a pocket or tie it to your wrist. Its low power consumption also makes it ideal for all-day wear.
9. I want a set-top box to watch videos.
You can install Code, A popular home theater platform, on the Raspberry Pi, and use it to watch videos on TV. With Kodi, you can use popular streaming services such as Netflix and Amazon Prime, or play local video files from a storage drive or elsewhere on your home network.
Raspberry Pi 4 B (2GB) is the best model for this purpose because it supports up to 4K Resolution, with 802.11ac Wi-Fi/Gigabit Ethernet, and can use USB 3.0 to connect to an external drive full of video. Raspberry Pi 3 B or 3 B+ is also suitable for this task, but it cannot perform 4K output.
10. I want to use my Raspberry Pi as a camera or webcam.
Above, we have mentioned using your Raspberry Pi as a security camera or for machine learning, but what if your goal is image quality and not just image recognition or motion sensing?You can even use Raspberry Pi as a PC webcam And, if you do this, Pi Zero or Zero W may be your best choice because it can connect directly to your PC via USB and reduce the delay between the two devices.
However, if you want the best looking pictures, you should consider getting Raspberry Pi high-quality camera Module, it can even work on Pi Zero, but if you plan to take 12-MP images, you can benefit from the larger memory of Raspberry Pi 3 or higher.
11. I want to give a raspberry pi as a gift.
The answer here really depends on how much you can spend on gifts. If your recipient is not familiar with Raspberry Pi, the best way is to provide them with a kit that includes the circuit board itself and a variety of accessories, including a power supply, HDMI cable for video output, and a protective cover.
If money is not an issue, then the best toolkit is Canakit Official Raspberry Pi 4 (4GB) Desktop Kit. For only $129, you can get the motherboard and all official accessories, including case, keyboard, mouse, and power supply.It even comes with a printout of the official Raspberry Pi guide [PDF]The kit with the new Raspberry Pi 4 (8GB) is future-proof, but most users do not need more than 4GB of RAM.
However, if you are looking for the most affordable Raspberry PI kit, please consider a zero W-based kit.You can find kits with housings, power supplies and solderless GPIO pins for Approximately 26 USD.
If the object you are buying is quite savvy or your budget is low, then offering Raspberry Pi alone is a good choice. At the bottom of the stack, Pi Zero is too weak to be a good gift; at least what some people want to do is connect to the Internet via Wi-Fi. Therefore, do not buy anything lower than Pi Zero W as a gift, and make Pi 4 B (8GB) the first choice. During the one-year holiday, I gave all my work friends Raspberry Pi Zero W, each with a custom video greeting, they need to be activated before they can watch it.